Scurvy is a disease caused by not getting enough vitamin C for weeks to months. Early symptoms of scurvy often include tiredness, weakness, sore muscles, and swollen or bleeding gums. Scurvy is most likely in people with very limited diets, alcohol use disorder, certain digestive conditions, or severe food insecurity, and infants can also develop it if their diet lacks enough vitamin C. Not everyone will have the same experience, but untreated scurvy can lead to anemia, poor wound healing, infections, and in severe cases it can be life-threatening. Treatment is usually simple and effective with vitamin C and better nutrition, and many people start to feel better within days to weeks.
How many people live with Scurvy?
There is no reliable recent count of how many people are living with scurvy worldwide, and major public health sources do not publish a single accepted global estimate. In the United States, scurvy is also considered rare, but there is no up-to-date national count, so most of what doctors know comes from small studies and individual case reports rather than a nationwide registry.
Overview
ScurvySymptoms
Scurvy often causes tiredness, weakness, and sore muscles. Many with scurvy also develop swollen, bleeding gums and easy bruising. Early symptoms of scurvy can include joint pain and slow wound healing.
Outlook and prognosis
With treatment, scurvy usually improves quickly, and many people feel more energetic within days. Gum bleeding, bruising, and joint pain often ease over weeks, and most people recover fully once vitamin C levels are restored.
Causes and risk factors
Scurvy is caused by not getting enough vitamin C for weeks to months. Risk rises with a very limited diet, alcohol use disorder, smoking, malabsorption, eating disorders, older age, and social or financial barriers to fresh foods.
Genetic influences
Genetics usually play only a small role in scurvy. Most cases come from too little vitamin C, not inherited changes. Rarely, genetic differences affecting absorption or metabolism may raise risk.
Diagnosis
Scurvy is diagnosed from symptoms, a diet history showing very low vitamin C intake, and a physical exam. Doctors may also use blood tests to support the diagnosis of scurvy and rule out other causes.
Treatment and drugs
Scurvy is treated with vitamin C, usually by mouth and sometimes by injection if symptoms are severe or eating is difficult. Many people with scurvy start to feel better within days, alongside help with diet, supplements, and any problems linked to poor nutrition.
Symptoms
Scurvy can creep in gradually, and the early symptoms of scurvy are often easy to mistake for stress, overwork, or another illness. As vitamin C levels stay low, people with scurvy may develop bleeding gums, easy bruising, skin changes, muscle or joint pain, and poor wound healing. A healthcare professional can help sort out what’s typical aging and what warrants a closer look.
Low energy and unusual tiredness are common early signs. Many living with scurvy may feel weak, drained, or less able to get through normal tasks like climbing stairs or carrying groceries.
Gums can become swollen, sore, and prone to bleeding, especially during brushing or flossing. Teeth may loosen over time if scurvy is severe or lasts a long time.
Bruises may appear after minor bumps, and small red or purple spots can show up on the skin because tiny blood vessels break easily. Some people with scurvy also notice nosebleeds or bleeding that seems harder to stop.
Skin may become dry, rough, or scaly, and small bumps can form around hair follicles. Hair can become bent or corkscrew-shaped instead of growing normally.
How people usually first notice Scurvy?
People usually first notice scurvy in small, easy-to-miss ways: unusual tiredness, feeling weak or achy, and gums that become tender, swollen, or bleed when brushing your teeth. As vitamin C deficiency continues, bruises may appear more easily, small red or purple spots can show up around hair follicles, and cuts may seem slower to heal. In children, irritability, leg pain, or trouble walking can be early clues, and while scurvy sounds old-fashioned, it is very treatable once the cause is recognized.
Types of Scurvy
Scurvy can affect day-to-day life in different ways, from unusual tiredness and sore legs to bleeding gums or easy bruising. It can be helpful to think of symptoms in categories. In many living with scurvy, the early symptoms of scurvy are easy to mistake for stress, overwork, or another minor illness. As vitamin C deficiency lasts longer, symptoms often become more obvious and more severe.
Early symptoms
Early scurvy often causes fatigue, weakness, irritability, and a general sense of feeling unwell. Some may also notice loss of appetite or vague aches that make normal routines feel harder.
Skin changes
Many people with scurvy bruise easily and may develop tiny red or purple spots from small blood vessel bleeding. Skin can become dry or rough, and body hair may look bent or twisted rather than growing normally.
Gum problems
Scurvy often makes the gums swollen, tender, and prone to bleeding, especially during brushing or eating. If the deficiency is severe or lasts a long time, teeth can loosen because the tissues supporting them become weak.
Muscle and joint
Some types show up in daily routines—like walking, climbing stairs, or getting up from a chair. People with scurvy may have muscle pain, joint pain, or leg tenderness, and children can be especially reluctant to move because it hurts.
Severe scurvy
In more advanced scurvy, bleeding under the skin or in deeper tissues can cause marked pain and swelling. Ongoing vitamin C deficiency can also lead to anemia, poor wound healing, and a much greater overall sense of weakness.
Can I slow down the onset of symptoms?
Yes. Because scurvy happens when your body goes too long without enough vitamin C, regularly getting vitamin C from food or, if needed, a clinician-recommended supplement can meaningfully delay or prevent symptoms; keeping a varied diet and addressing problems that make it hard to eat well or absorb nutrients can also help. The good news is that scurvy is usually very treatable when caught early, but getting enough vitamin C lowers the risk and can prevent scurvy from starting rather than guaranteeing that symptoms will never appear in every situation.
What genetics can tell you about symptoms
Genetics usually does not play a major role in the symptoms of scurvy, because scurvy happens when the body does not get enough vitamin C for long enough. In most people, the type of symptoms, how severe they become, and how quickly they appear depend much more on how low vitamin C levels are, how long the deficiency lasts, and factors like age, overall health, and diet. Rare genetic differences can affect how some people absorb or use vitamin C, which may slightly change how easily symptoms develop, but this is not the usual reason scurvy starts or why it looks different from one person to another.
Causes and risk factors
If meals often lack fresh fruits and vegetables, scurvy can develop over time because the body is not getting enough vitamin C. Common risk factors for scurvy include a very limited diet, food insecurity, smoking, and heavy alcohol use. Gut problems that reduce nutrient absorption can also raise risk, and so can dialysis or times when the body needs more vitamin C. Not everyone with the same risk develops scurvy. Genetics are not a usual cause, but rare inherited differences in nutrient handling may make some people more vulnerable.
What are the most common causes or risk factors?
Scurvy is caused by a severe lack of vitamin C over time, usually from eating very few fruits and vegetables for weeks or months. The main risk factors are a very limited diet, trouble getting enough food, alcohol use disorder, smoking, eating disorders, older age, and health problems that make it hard for the body to absorb nutrients, such as some bowel conditions or after weight-loss surgery.
Environmental and biological risk factors
Scurvy happens when the body goes without enough vitamin C for weeks to months. The main risk is not getting enough vitamin C from food, but some health conditions can also make it harder to absorb or keep enough of it. Some risks are carried inside the body, others come from the world around us.
The biggest risk factor for scurvy is a long period with too little vitamin C. This can happen when fruits, vegetables, or fortified foods are rarely available.
Poverty, famine, displacement, or heavy reliance on emergency food supplies can raise the risk of scurvy. In these settings, fresh foods may be hard to get for long stretches.
Living in institutions, being homebound, or depending on others for meals can increase the risk of scurvy. For many, this can mean eating the same low-variety foods day after day.
Conditions that affect the stomach or intestines can make it harder for the body to absorb vitamin C. This risk is higher in people with diseases that cause chronic diarrhea or poor nutrient uptake.
Genetic risk factors
Scurvy is usually not an inherited disease. When people ask about the genetic causes of scurvy, the main point is that genes rarely cause it directly, but a few uncommon inherited disorders can raise the chance of vitamin C deficiency. Carrying a genetic change doesn’t guarantee the condition will appear.
Usually not inherited: Scurvy itself is usually not passed down through families as a stand-alone genetic condition. In most cases, genes are not the main reason someone develops it.
Hereditary fructose intolerance: This rare inherited condition can make foods containing fructose cause vomiting, belly pain, and strong food avoidance from infancy. Because many fruits and some vegetables become hard to tolerate, the risk of vitamin C deficiency and scurvy can rise.
Vitamin C transport: Rare gene changes that affect how the body absorbs or moves vitamin C can lead to lower vitamin C levels in the blood. These changes are uncommon and usually increase susceptibility rather than acting as a direct single cause of scurvy.
Inherited gut disorders: Some rare genetic disorders affecting the intestine can make it harder to absorb nutrients from early life. If vitamin C is not absorbed well over time, scurvy becomes more likely.
Lifestyle risk factors
Scurvy usually develops when vitamin C intake stays very low for weeks to months. The main lifestyle risk factors for scurvy relate to eating patterns, food choices, alcohol use, and other habits that reduce regular intake of vitamin C-rich foods. In practice, how lifestyle affects scurvy is mostly through whether the body gets enough fruits and vegetables consistently over time.
Diets with very little fruit and vegetables are the clearest lifestyle risk factor for scurvy. When intake stays low, the body cannot maintain normal collagen production and symptoms can gradually appear.
Very limited eating patterns, extreme dieting, or highly repetitive food choices can leave out key vitamin C sources. This raises the risk of scurvy, especially when the pattern continues for many weeks.
Relying heavily on packaged, refined, or convenience foods can crowd out fresh produce that supplies vitamin C. A diet built this way makes scurvy more likely if it regularly lacks citrus, berries, peppers, potatoes, or similar foods.
Heavy alcohol use can go along with skipped meals, poor diet quality, and inconsistent eating habits. These patterns can reduce vitamin C intake enough to contribute to scurvy.
Risk prevention
Scurvy is usually preventable because it happens when the body goes too long without enough vitamin C. For many, this can mean a very limited diet, trouble getting fresh foods, heavy alcohol use, or a health condition that makes eating or absorbing nutrients harder. Prevention works best when combined with regular check-ups, especially if eating has become difficult or you have had early symptoms of scurvy such as tiredness, sore gums, or easy bruising. Prevention is about lowering risk, not eliminating it completely.
Eating vitamin C-rich foods regularly is the main way to prevent scurvy. Citrus fruit, berries, kiwi, peppers, tomatoes, potatoes, and broccoli can all help keep vitamin C levels up.
A varied diet lowers the chance of going weeks or months without enough vitamin C. If meals often come from highly processed foods with little fruit or vegetables, risk can rise over time.
Some people need a vitamin C supplement when food intake is poor or very restricted. This can be important for many living with scurvy risk due to eating disorders, severe food insecurity, or very limited diets.
Certain gut conditions, major digestive surgery, or long-term illness can make it harder to absorb enough nutrients. Treating these problems and checking nutritional status can help prevent scurvy from developing.
Can you prevent Scurvy?
Yes, scurvy is usually preventable because it happens when the body does not get enough vitamin C for a long time. Most people can prevent it by regularly eating foods with vitamin C, such as fruits and vegetables, or by using a supplement if a doctor says that is needed. Prevention can be harder for people with a very limited diet or certain health problems that affect eating or absorbing nutrients, so getting help early can lower the risk.
Transmission
Scurvy is not contagious, so it cannot be passed from one person to another through coughing, kissing, sex, blood, sharing food, or everyday contact. If you are wondering whether scurvy is contagious, the answer is no.
Scurvy develops when the body does not get enough vitamin C for weeks to months. In some households, more than one person may develop scurvy because they share the same very limited diet or another risk factor, but they have not caught it from each other.
When to test your genes
For scurvy, genetic testing is usually not needed because it is caused by too little vitamin C, not by an inherited gene change. If symptoms suggest scurvy, the right next step is medical evaluation of diet, alcohol use, malabsorption, or other conditions that can block vitamin C intake or absorption.
Diagnosis
Scurvy is usually diagnosed by putting together the story of your symptoms, what you eat, and how your body looks on exam. The first clues often come from everyday problems such as unusual tiredness, sore or swollen gums, easy bruising, or wounds that seem slow to heal. It’s natural to worry when symptoms don’t have a clear explanation. In most people, the diagnosis of scurvy becomes clearer once a doctor confirms very low vitamin C levels and rules out other causes of bleeding or weakness.
Doctors ask about your diet, alcohol use, digestive problems, and any condition that may limit food intake or nutrient absorption. A detailed family and health history can help, but with scurvy the biggest clue is often too little vitamin C over time.
Your doctor looks for signs such as bleeding gums, tiny skin blood spots, easy bruising, corkscrew hairs, and joint tenderness. These exam findings can strongly point toward scurvy when they appear along with poor nutrition.
Blood work may show a low vitamin C level and may also check for anemia or other nutrient shortages. Other lab tests may help rule out common conditions that can also cause fatigue, bruising, or bleeding.
A careful review of what you usually eat can be a key part of how scurvy is diagnosed. For many, this means noticing a very limited diet with few fruits, vegetables, or fortified foods.
How is Scurvy diagnosed?
Doctors usually diagnose scurvy by asking about symptoms and diet, especially whether someone has been getting enough vitamin C from food or supplements. They may also do a blood test to check vitamin C levels and look for common signs such as swollen or bleeding gums, easy bruising, and slow wound healing. Sometimes the diagnosis becomes even clearer when symptoms start to improve soon after vitamin C treatment begins.
Stages of Scurvy
Scurvy does not have defined progression stages. This is because it develops from too little vitamin C over time, and the symptoms usually build gradually rather than moving through set, named stages. Doctors usually start with a conversation about your diet, symptoms, and how long problems such as fatigue, sore gums, easy bruising, or slow wound healing have been happening, including any early symptoms of scurvy. Blood tests may be used to look for low vitamin C and to check for related problems such as anemia, and many people feel reassured knowing what their tests can—and can’t—show.
Outlook and prognosis
The outlook for people with scurvy is excellent when it is recognized and treated promptly with vitamin C replacement and improved nutrition, and symptoms often begin to improve within days to weeks. Fatigue, gum bleeding, bruising, and bone or joint pain usually resolve over time, although full recovery can take longer in severe or longstanding cases. Prognosis depends mainly on how advanced the deficiency is and whether there are underlying problems such as malnutrition, alcohol use disorder, intestinal malabsorption, or social barriers to getting adequate food. If scurvy is left untreated, it can lead to anemia, severe bleeding, poor wound healing, infections, and in extreme cases death. Mortality is now rare in places where diagnosis and treatment are available, but delayed recognition can still make the illness dangerous, especially in frail older adults, infants, or people with multiple medical problems. Long-term outlook is very good once the cause is addressed, and recurrence is preventable with consistent vitamin C intake.
Long-term effects
Scurvy can affect far more than tiredness or sore gums if it goes on for weeks to months without treatment. Many living with scurvy may notice everyday tasks become harder, like climbing stairs, carrying groceries, or healing after a small cut. Long-term effects vary widely, but ongoing vitamin C deficiency can weaken connective tissues, slow healing, and raise the risk of serious complications. With timely treatment, many effects of scurvy improve, but severe or prolonged cases can lead to lasting harm.
Cuts, bruises, and sore areas may take much longer to get better when scurvy has been present for a while. This happens because the body cannot build and repair tissue normally without enough vitamin C.
Gums may stay swollen, bleed easily, and become painful over time. In more advanced scurvy, teeth can loosen or fall out because the tissues supporting them become weak.
Long-standing scurvy can cause bone pain, joint pain, and tenderness, especially in children whose bones are still growing. In severe cases, weak connective tissue around bone can lead to bleeding, reduced growth, or trouble walking.
Ongoing scurvy may lead to anemia, which means the body does not have enough healthy red blood cells. For many, symptoms can include lasting tiredness, weakness, shortness of breath, and looking pale.
How is it to live with Scurvy?
Living with scurvy can make everyday life feel unexpectedly hard because deep fatigue, muscle and joint pain, swollen or bleeding gums, and slow healing can turn simple tasks like walking, eating, or brushing your teeth into a challenge. For many people, this means less energy for work, school, caregiving, and social life, and the discomfort can also affect mood and sleep. People around you may notice that you seem worn down or less able to keep up, and family or friends may need to help more with meals, shopping, appointments, or daily tasks. The reassuring part is that scurvy is usually very treatable once vitamin C is replaced, and many symptoms begin to improve within days to weeks.
Treatment and drugs
Scurvy is treated by replacing the vitamin C the body is missing, usually with vitamin C tablets or liquid, and by eating more vitamin C-rich foods such as citrus fruit, berries, peppers, and potatoes. Many people with scurvy start to feel better within days, although full recovery of tiredness, gum problems, bruising, and skin changes can take weeks. If scurvy is severe, a doctor may also treat related problems such as dehydration, anemia, or bleeding, and children may need closer follow-up to make sure growth and bones recover well. Supportive care can make a real difference in how you feel day to day, especially if sore gums or weakness have made eating and daily tasks hard. Your doctor may suggest looking for the reason vitamin C got so low in the first place, because treating that cause helps prevent scurvy from coming back.
Can you cure Scurvy?
Yes. Scurvy is usually curable because it happens when the body does not get enough vitamin C, and treatment with vitamin C supplements plus foods rich in vitamin C can help most people start feeling better within a few days, with fuller recovery over the next few weeks. If it has gone on for a long time, some people may also need care for problems like anemia, bleeding, or infection.
Non-drug treatment
Scurvy can make everyday life feel draining, with sore gums, easy bruising, fatigue, and aching legs or joints that make simple tasks harder. Non-drug treatment focuses on getting enough vitamin C from food, rebuilding overall nutrition, and dealing with the reason scurvy developed in the first place. For many, treatment begins not at the pharmacy, but in regular meals and snacks that include fruit, vegetables, and other nourishing foods. Many living with scurvy start to feel better within days to weeks once nutrition improves, although full recovery can take longer if the deficiency has been severe.
Eating foods rich in vitamin C is the main non-drug treatment for scurvy. Citrus fruit, strawberries, kiwi, bell peppers, tomatoes, potatoes, broccoli, and cabbage can all help restore levels through a practical diet for scurvy recovery.
A dietitian can help build meals that are realistic, affordable, and easier to keep up with if appetite, chewing, or shopping is a challenge. This can be especially helpful for older adults, people with restricted diets, or anyone recovering from poor nutrition.
Non-drug treatments may be recommended alongside care for the reason scurvy happened, such as food insecurity, alcohol misuse, trouble swallowing, or a very limited diet. If the cause is not addressed, the deficiency can come back even after symptoms improve.
Swollen or bleeding gums often improve as vitamin C intake improves, but dental care may still be needed. Gentle brushing, soft foods for a short time, and treatment for gum disease can make eating less painful and support healing.
Your genes may have an impact on how drugs work for you
For scurvy, genes usually do not play a big role in how treatment works, because the main treatment is simply replacing vitamin C. Most people improve once they get enough vitamin C, although the speed of recovery can vary if someone has severe malnutrition, trouble absorbing nutrients, or another health problem that makes it harder for the body to take in or use vitamins. In other words, for scurvy, day-to-day factors like diet and overall health matter much more than inherited differences in how the body handles medicine.
Pharmacological treatments
Treatment for scurvy is usually simple and works quickly once vitamin C is replaced. The main medicine is vitamin C, also called ascorbic acid, taken by mouth in most people and given by vein if symptoms are severe or swallowing is difficult. Bleeding gums, leg pain, and extreme tiredness often start to improve within days, although full recovery can take a few weeks. In some cases, other vitamin or mineral supplements are added if tests or diet suggest more than one deficiency.
Ascorbic acid, which is vitamin C, is the standard first-line treatment for scurvy. It is usually taken by mouth as a tablet, capsule, chewable, or liquid, and the dose depends on age and how severe the deficiency is. Dosing may be increased or lowered gradually to match recovery and daily needs.
Intravenous vitamin C may be used when scurvy is severe, when someone cannot absorb nutrients well, or when vomiting or illness makes oral treatment hard. This can help restore vitamin C levels quickly while the underlying cause is being addressed.
Some people with scurvy also need iron, folic acid, or a multivitamin if poor nutrition has caused several deficiencies at once. These are not a substitute for vitamin C, but they may be added when blood tests or diet history show a clear need.
Genetic influences
If you are wondering whether scurvy runs in families, the answer is usually no. Scurvy is most often linked to not getting enough vitamin C over time, so diet, access to food, digestive problems, and certain health conditions matter much more than inherited genes. Genetics is only one piece of the puzzle, but rare inherited differences can affect how the body absorbs, carries, or uses vitamin C, which may make deficiency more likely in some families. Family history can also reflect shared eating patterns or similar medical issues rather than a direct genetic cause. For most people with scurvy, doctors focus first on finding why vitamin C is low and treating it, not on genetic testing.
Is Scurvy genetic?
Genetics usually play only a small role in scurvy. Most cases come from too little vitamin C, not inherited changes. Rarely, genetic differences affecting absorption or metabolism may raise risk.
Having a genetic risk is not necessarily a diagnosis
Differences in genes are a normal and common part of human biology. Most of these differences do not directly affect health and simply reflect natural variation among people. For many genes, having a variant associated with a condition points to a possible link, not a certain diagnosis, particularly when several genes and environmental factors play a role. In other situations, though, one well-understood variant in a particular gene is enough to confirm the diagnosis.
Pharmacogenetics—how genetics influence drug effects
For most people with scurvy, genetics do not strongly change the usual treatment, which is replacing vitamin C and fixing the cause of the deficiency. If you are wondering how genetics affect scurvy treatment, the answer is usually that they matter far less than diet, alcohol use, digestive problems, or other health conditions that make it hard to get or absorb vitamin C. Not every difference in response is genetic, but inherited changes in vitamin C transport can influence a person’s vitamin C levels, which may help explain why some people become deficient more easily than others. Even so, doctors do not routinely use genetic testing to choose treatment for scurvy, because standard vitamin C treatment works well for most people. What usually matters more is how severe the scurvy is, whether there is trouble absorbing nutrients, and whether someone has kidney problems or other conditions that may affect supplement dosing. For many living with scurvy, this means treatment is guided mainly by symptoms, blood work when needed, and how quickly strength, gum bleeding, and skin changes improve after vitamin C is started.
Interactions with other conditions
People living with scurvy often have other health problems that either raise the risk of vitamin C deficiency or make its effects more noticeable. This can happen with conditions that limit food intake or absorption, such as eating disorders, alcohol use disorder, inflammatory bowel disease, celiac disease, or after some stomach or intestinal surgeries. Doctors call it a comorbidity when two conditions occur together. In day-to-day life, someone with scurvy and iron deficiency anemia may feel especially tired or short of breath, while a person who also has gum disease may notice more bleeding and mouth pain. Scurvy can also complicate recovery from chronic illness because poor wound healing, easy bruising, and weakness may add to problems already caused by diabetes, infections, or frailty in older adults. When doctors are looking into the early symptoms of scurvy, they also consider whether another disease, a restricted diet, or a medication is contributing, because treating the vitamin deficiency alone may not fully solve the problem if the underlying condition is still active.
How genes can cause diseases
Humans have more than 20,000 genes, each carrying out one or a few specific functions in the body. One gene instructs the body to digest lactose from milk, another tells the body how to build strong bones and another prevents the body's cells from beginning to multiply uncontrollably and developing into cancer. As all of these genes combined are the building instructions for our body, a defect in one of these genes can have severe health consequences.
Through decades of genetic research, we know the genetic code of any healthy/functional human gene. We have also identified that in certain positions on a gene, some individuals may have a different genetic letter from the one you have. We call these hotspots "Genetic Variations" or "Variants" in short. In many cases, studies have been able to show that having the genetic letter "G" in the position makes you healthy, but having the letter "A" in the same position disrupts the gene function and causes a disease. Genopedia allows you to view these variants in genes and summarizes all that we know from scientific research, which genetic letters (Genotype) have good or bad consequences on your health or on your traits.
What other conditions can cause similar symptoms to Scurvy?
Scurvy can be mistaken for gum disease, iron-deficiency anemia, and bleeding problems such as having too few platelets, because all of these can cause tiredness, sore or bleeding gums, and easy bruising. In children, it can also look like bone or joint problems because leg pain, swelling, or trouble walking may stand out more than the gum changes.
History
Long before anyone understood vitamins, scurvy was one of the great illnesses of long sea voyages. Sailors, soldiers, and people cut off from fresh food could become deeply tired, weak, and short of breath. Gums might swell or bleed, old wounds could reopen, and simple daily tasks such as climbing stairs, carrying supplies, or even standing for long periods became hard.
Written descriptions go back many centuries, but the condition became especially well known between the 15th and 18th centuries, when ships often spent months at sea with little access to fruits or vegetables. Throughout history, people have described clusters of symptoms that we would now recognize as scurvy, even if they did not know the cause. Early symptoms of scurvy were often missed or mistaken for exhaustion from travel, infection, or harsh living conditions, which helps explain why it caused so much suffering before effective prevention became routine.
A major turning point came in the 1700s, when a ship’s doctor, James Lind, compared different remedies in sailors with scurvy and found that citrus fruits helped people recover. His work is often described as an early clinical trial, although it took many years for navies and governments to act on the findings consistently. Once lemon or lime juice and other fresh foods were added more reliably to diets, scurvy became far less common in seafaring communities.
Later, researchers worked out that scurvy happens when the body does not get enough vitamin C for long enough. That discovery, made in the 20th century, connected older observations with a clear nutritional cause and made prevention much simpler. Food preservation, wider access to fresh produce, and vitamin fortification changed everyday life for many people and sharply reduced the disease in places where diets improved.
Scurvy is now uncommon in the general population, but it has not disappeared. It can still affect people whose diets are very limited, including some older adults, people living with alcohol use disorder, some people with eating disorders, and children or adults with conditions that make eating difficult or extremely selective. Knowing this history matters because scurvy is an old disease that can still appear today, and when it is recognized early, treatment usually works well.