
Thalassemia is a genetic disorder that affects how the body makes hemoglobin. This leads to anemia and other health issues. We look into how vitamin C helps manage this condition, mainly when used with iron chelation therapy. Vitamin C can be a deadly risk for some. Learn why those with thalassemia minor must be extremely careful with this common supplement.
Vitamin C is thought to make iron chelation therapy work better. Studies have found that adding vitamin C to deferoxamine (DFO) therapy can lower iron levels in the blood and liver. This is true for patients with β-thalassemiamajor.
Vitamin C can help improve health for thalassemia patients by making iron chelation therapy more effective. We will discuss the good points and things to watch out for when using it with chronic transfusions.
Key Takeaways
- Vitamin C supplementation can enhance the efficacy of iron chelation therapy in thalassemia patients.
- Combining vitamin C with deferoxamine (DFO) has shown significant benefits in reducing iron overload.
- Improved iron chelation therapy can lead to better overall health outcomes for thalassemia patients.
- Patients with chronic transfusions should consult their healthcare provider before starting vitamin C supplementation.
- Monitoring is necessary to avoid possible negative effects from taking vitamin C.
Understanding Thalassemia and Its Types

Thalassemia is a complex genetic disorder that affects how the body makes hemoglobin. It comes in different forms, each needing its own way of management. This condition happens when the body can’t make globin chains right. Globin chains are key parts of hemoglobin.
What is Thalassemia?
Thalassemia is a hereditary disorder that messes with hemoglobin production. Hemoglobin is a protein in red blood cells that carries oxygen. It’s caused by genes not working right, leading to less or no globin chains.
The severity of thalassemia can vary a lot. It can be mild and not need treatment or very severe and life-threatening. It’s common in the Mediterranean, Middle East, and Southeast Asia.
Alpha Thalassemia vs. Beta Thalassemia
Thalassemia is mainly split into two types: alpha and beta thalassemia. These types depend on which globin chains are affected.
- Alpha Thalassemia: This happens when there’s a problem with the genes for alpha-globin chains. The severity depends on how many genes are affected. It can range from being a silent carrier to having severe hemoglobin H disease.
- Beta Thalassemia: This is caused by issues with the genes for beta-globin chains. It can be mild or very severe. Mild cases might not show symptoms, while severe cases need regular blood transfusions.
Severity Spectrum: Major, Intermedia, and Minor
Alpha and beta thalassemia can also be classified by how severe they are. They are split into major, intermedia, and minor forms.
- Thalassemia Major: This is the most severe form. People with it have serious anemia and need blood transfusions to live.
- Thalassemia Intermedia: This is a milder form. People with it have some anemia but not as much as those with thalassemia major. They might need blood transfusions sometimes.
- Thalassemia Minor: This is often called being a carrier. People with it usually don’t show symptoms but can pass the mutated gene to their kids.
Knowing about these different types and their levels of severity is key to managing thalassemia well. It helps improve the lives of those affected.
Thalassemia Minor: Symptoms and Diagnosis

Thalassemia minor is a mild form of thalassemia. It often shows subtle symptoms that can be missed. Knowing the symptoms and how to diagnose it is key to managing it well.
Common Symptoms and Manifestations
People with thalassemia minor might feel tired, weak, or have shortness of breath. These symptoms are usually mild and don’t greatly affect daily life. Some might not show any symptoms at all, making it often found during routine blood tests.
Diagnostic Approaches
To diagnose thalassemia minor, we use blood tests and genetic screening. Blood tests show mild anemia and changes in red blood cells. Genetic testing finds the specific genetic mutations, confirming the diagnosis.
These tools help us confirm thalassemia minor and tell it apart from other anemia causes. Accurate diagnosis is key for proper management and genetic counseling.
Genetic Implications and Inheritance Patterns
Thalassemia minor is a genetic condition. Knowing how it’s inherited is important for family planning. Carriers of the thalassemia gene have a 50% chance of passing it to each child. If both parents are carriers, there’s a 25% chance of a child having a more severe form of thalassemia.
Genetic counseling is advised for those with thalassemia minor. It helps understand the risks and options for family planning. This includes knowing the chances of passing the condition to children and its health implications.
The Role of Iron in Thalassemia Management
Iron overload is a big problem in thalassemia major. It needs good management. People with thalassemia major often get blood transfusions to help them. But, these transfusions can cause too much iron in the body.
Iron Overload: A Common Complication
Getting blood transfusions often leads to iron overload. The body can’t get rid of extra iron. This extra iron can harm organs like the heart, liver, and glands.
- Cardiac Complications: Too much iron can cause heart problems.
- Hepatic Issues: It can also damage the liver.
- Endocrine Problems: Iron buildup can mess with hormone levels, causing diabetes and hypothyroidism.
How Iron Accumulation Affects Organ Function
Iron buildup can hurt how organs work. For example, too much iron in the heart can cause heart failure. This is a big risk for thalassemia major patients.
Iron in the liver can cause scarring and damage. This makes the liver less able to clean the blood and do other important jobs.
Introduction to Iron Chelation Therapy
Iron chelation therapy helps by removing extra iron. It uses medicines that grab onto iron and help it leave the body. This is key to avoiding iron overload problems.
There are different iron chelators like deferoxamine, deferiprone, and deferasirox. Each has its own good points and side effects. The right one depends on the patient’s needs and how well they can follow the treatment.
- Deferoxamine: Given through a needle under the skin or into a vein, it works well but can be hard to use.
- Deferiprone: Taken by mouth, it’s good at getting rid of iron in the heart.
- Deferasirox: Also taken by mouth, it’s easy to take once a day and helps reduce iron in the liver and heart.
Nutritional Challenges in Thalassemia Patients
Thalassemia patients face many nutritional challenges. These challenges can greatly affect their health and happiness. It’s important to manage these challenges to avoid problems and improve life quality.
Common Nutrient Deficiencies
Thalassemia patients often lack important vitamins and minerals. This is because their bodies need more and can’t absorb enough. Some common deficiencies include:
- Iron overload: A big worry due to frequent blood transfusions.
- Folic acid: Key for making red blood cells.
- Vitamin D: Important for strong bones, which can be a problem for thalassemia patients.
Importance of Balanced Diet
A balanced diet is essential for thalassemia patients as it helps maintain their health and effectively manage their condition. A good diet supports:
- Keeping nutrient levels right.
- Strong bones with enough calcium and vitamin D.
- Better energy and overall feeling.
We suggest thalassemia patients get help from a healthcare provider or dietitian. They can create a diet plan that fits their needs.
Foods to Embrace and Avoid
Some foods can help with thalassemia, while others might make it worse. Here’s what to know:
|
Food Type |
Recommended |
Avoid |
|---|---|---|
|
Iron-rich foods |
Eat in moderation; think about iron chelation therapy. |
Avoid too much. |
|
Vitamin C-rich foods |
Good in small amounts; helps iron absorption. |
Watch out for too much, specially with iron overload. |
|
Calcium-rich foods |
Great for bone health. |
None |
By tackling nutritional challenges, thalassemia patients can greatly improve their health and life quality.
Vitamin C: Functions and Importance
Vitamin C is a key nutrient for our bodies. It’s known for its antioxidant powers, boosting our immune system, and helping make collagen. We’ll look at what vitamin C does, how much we need, and the best ways to get it.
Essential Roles in the Body
Vitamin C is vital for many body functions. It helps our immune system by making more white blood cells to fight infections. It’s also needed for collagen, which keeps our skin, bones, and connective tissue strong. Plus, it fights off cell damage from free radicals, lowering the risk of heart disease and cancer.
Key Functions of Vitamin C:
- Boosts immune system
- Essential for collagen production
- Acts as an antioxidant
- Enhances iron absorption
Recommended Daily Intake for Healthy Individuals
The amount of vitamin C we need changes with age, sex, and health. Adults usually need 60-90 mg a day. Smokers and those with certain health issues might need more. Some research suggests taking more vitamin C could have extra health benefits.
|
Age Group |
Recommended Daily Intake (mg) |
|---|---|
|
Adult Men |
90 |
|
Adult Women |
75 |
|
Pregnant Women |
85 |
|
Breastfeeding Women |
120 |
Natural Sources vs. Supplements
We can get vitamin C from food or supplements. Foods like citrus fruits, strawberries, bell peppers, and broccoli are rich in it. While eating a balanced diet is best, supplements can help if we can’t get enough from food.
Choosing between food and supplements depends on our needs and health. For most, a good diet is enough. But some, like those with thalassemia, might need supplements. Always talk to a doctor before starting any supplements.
Prevalence of Vitamin C Deficiency in Thalassemia
Vitamin C deficiency is a big problem for thalassemia patients. Studies show it’s very common. We’ll look at the numbers and research to understand why and how to spot it.
Statistics and Research Findings
Research shows vitamin C deficiency is common in thalassemia patients. Up to 70% of them might not get enough vitamin C. A study on shows how big of an issue this is.
Why is vitamin C deficiency so common in thalassemia patients? It’s because they use more vitamin C, don’t eat enough, or can’t absorb it well. Knowing this helps us find better ways to help them.
Causes of Deficiency in Thalassemia Patients
Several reasons lead to vitamin C deficiency in thalassemia patients. These include:
- More vitamin C is used because of oxidative stress
- They might not eat enough or have poor nutrition
- They might not absorb vitamin C well
- Getting blood transfusions and having too much iron
These reasons can cause a big shortage of vitamin C. This affects their health and well-being a lot.
Clinical Signs of Vitamin C Insufficiency
Vitamin C deficiency shows in different ways. These include:
|
Clinical Signs |
Description |
|---|---|
|
Fatigue and malaise |
Feeling unwell all the time |
|
Impaired wound healing |
Wounds take a long time to heal |
|
Joint pain and swelling |
Joints hurt and swell |
It’s important to know these signs early. This way, we can treat it quickly. We suggest thalassemia patients get checked regularly for vitamin C deficiency.
How Vitamin C Interacts with Iron Metabolism
Understanding how vitamin C affects iron metabolism is key for managing thalassemia. Vitamin C has a complex relationship with iron. It influences its absorption and can impact overall iron levels in the body.
Vitamin C and Iron Absorption
Vitamin C boosts the absorption of non-heme iron. This is important for keeping iron levels healthy. Non-heme iron is found in plant-based foods and is harder to absorb than heme iron from animals.
But, eating foods rich in vitamin C with non-heme iron sources can help a lot. For example, drinking orange juice with iron-fortified cereal can improve iron absorption. This is good for thalassemia patients who need to manage their iron levels carefully.
The Double-Edged Sword Effect
Vitamin C can be both good and bad for thalassemia patients. On one hand, it helps absorb more iron, which can prevent deficiency. On the other hand, it can lead to iron overload, a big problem in thalassemia major.
Iron overload happens because thalassemia patients often get many blood transfusions. This builds up iron in their bodies. Vitamin C’s role in making iron more absorbable can make this problem worse. So, it’s important to watch and manage iron levels closely.
Biochemical Mechanisms of Interaction
Vitamin C changes iron in the gut so it’s easier to absorb. It turns ferric iron into ferrous iron, making it more soluble. This is key for absorbing non-heme iron.
|
Mechanism |
Description |
Effect on Iron Absorption |
|---|---|---|
|
Reduction of Ferric Iron |
Vitamin C reduces Fe3+ to Fe2+ |
Increases solubility and absorption |
|
Enhanced Absorption |
Fe2+ is more easily absorbed in the gut |
Improves overall iron uptake |
|
Potential for Overload |
Increased absorption may lead to higher iron levels |
May exacerbate iron overload in thalassemia patients |
In conclusion, vitamin C’s effect on iron metabolism is complex. It’s important for thalassemia patients to manage it carefully. While it helps absorb iron, watching iron levels is key to avoid overload.
Benefits of Vitamin C for Thalassemia Management
Vitamin C is a big help for people with thalassemia. It’s not just a simple nutrient. It’s key for better thalassemia management.
Enhancing Iron Chelation Therapy Efficacy
Vitamin C boosts iron chelation therapy’s power. This therapy fights iron overload in thalassemia patients. Vitamin C makes iron chelators work better, removing extra iron more efficiently.
Improving Hemoglobin Levels
Research shows vitamin C might also lift hemoglobin levels in thalassemia patients. Its antioxidant powers might stabilize red blood cells and boost hemoglobin production.
Antioxidant Protection Against Iron Toxicity
Vitamin C is a strong antioxidant. It guards cells against free radical damage. In thalassemia, it’s vital for fighting oxidative stress from iron overload. It neutralizes free radicals, lowering iron toxicity.
Cardiac Function Improvement
Thalassemia patients often face heart issues from iron overload. Vitamin C helps improve heart function. Its antioxidants may lessen heart damage and enhance heart health.
|
Benefit |
Description |
|---|---|
|
Enhancing Iron Chelation Therapy |
Increases the effectiveness of iron chelators, helping remove excess iron. |
|
Improving Hemoglobin Levels |
May contribute to stabilizing red blood cells and improving hemoglobin production. |
|
Antioxidant Protection |
Protects cells from damage caused by free radicals, reducing iron toxicity. |
|
Cardiac Function Improvement |
Associated with improved heart health and reduced cardiac damage. |
Potential Risks of Vitamin C Supplementation
Vitamin C is often praised for its antioxidant benefits. Yet, its use in thalassemia patients needs careful thought. It can have both good and bad effects, mainly when taken in large amounts or with other treatments.
Oxidative Stress and Iron Overload
One big worry with vitamin C in thalassemia is iron-generated oxidative damage. It can help iron absorption, which is good for some but bad for those with too much iron. This can harm tissues and organs over time.
We must watch iron levels closely and adjust vitamin C doses to avoid this risk. Our goal is to use vitamin C’s benefits without causing harm.
Risk of Nephropathy and Oxalate Formation
Too much vitamin C can raise the risk of nephropathy due to more oxalate. Oxalate can cause kidney damage or worsen kidney problems. Thalassemia patients, and those with kidney issues, should be careful with vitamin C.
Checking kidney function and oxalate levels regularly is key. This helps spot problems early and adjust treatment plans as needed.
Interactions with Thalassemia Medications
Vitamin C can also affect thalassemia medications, like iron chelators. It might make some chelators work better but could also raise side effect risks. It’s important for patients to tell their doctors about any vitamin C use.
Knowing these risks and how to avoid them helps thalassemia patients make smart choices about vitamin C. This is part of their overall care plan.
Clinical Evidence: Vitamin C in Thalassemia Treatment
Recent studies have shown vitamin C might help in treating thalassemia. It’s important to look at the evidence supporting its use.
The 180-Patient Trial with Deferoxamine
A big trial with 180 β-thalassemia major patients found vitamin C helps with deferoxamine. shows vitamin C can make iron chelation therapy more effective. It’s a key part of managing thalassemia.
Other Significant Research Findings
Other studies also looked at vitamin C in thalassemia patients. They found it can boost hemoglobin levels and protect against iron toxicity. It might also help the heart in thalassemia patients.
“Vitamin C supplementation has been shown to have a positive impact on various aspects of thalassemia management, from improving iron chelation therapy efficacy to enhance overall patient outcomes.”
Ongoing Studies and Future Directions
Research on vitamin C in thalassemia is ongoing. We need more studies to understand its benefits and risks. This will help us find better treatments for thalassemia.
Looking ahead, we must consider how vitamin C interacts with other treatments. This ensures thalassemia patients get the safest and most effective care.
Safe Dosage Guidelines for Thalassemia Patients
For thalassemia patients, knowing the right amount of vitamin C is key. It helps with iron chelation therapy but too much can be harmful.
General Recommendations
Experts suggest 2–3 mg/kg/day of vitamin C for these patients. This amount helps iron chelators work better without causing problems.
Age-Specific Considerations
Age matters when figuring out the safe dose. Pediatric patients need doses based on their weight and health. Adultsshould also be careful, as their dose might change based on other health issues.
Optimal Timing with Chelation Therapy
When to take vitamin C with iron chelation therapy is important. It’s best to take it during or after therapy to boost its effect. Always check with a doctor for the best timing.
Forms of Vitamin C Supplementation
Vitamin C supplements come in tablets, capsules, and powders. Choosing the right one depends on what your doctor recommends. They consider how easy it is to take and how well you can tolerate it.
When picking a vitamin C supplement, think about:
- Other nutrients that might affect vitamin C
- The chance of allergic reactions
- How easy it is to adjust the dose
By following these tips and talking to doctors, thalassemia patients can safely use vitamin C. It’s part of a complete treatment plan.
When to Avoid Vitamin C Supplementation
It’s important to know when not to take vitamin C supplements, mainly for those with thalassemia.
Specific Contraindications
Don’t take vitamin C if you’re allergic to it or have certain health issues. People with kidney stones or at risk of iron overload should be careful. Always talk to a doctor before starting any supplements.
|
Condition |
Risk |
Recommendation |
|---|---|---|
|
Kidney Stones |
Increased risk of oxalate stones |
Limit vitamin C intake |
|
Iron Overload |
Potential for increased iron absorption |
Monitor iron levels closely |
Warning Signs of Adverse Reactions
Watch out for signs like diarrhea, stomach pain, hives, or itching. Act fast if you notice these symptoms.
When to Immediately Consult Your Hematologist
If you have side effects or concerns about vitamin C, see your hematologist right away. They can help and adjust your treatment.
Knowing the risks and signs helps those with thalassemia use vitamin C safely. Always follow your doctor’s advice.
Other Important Supplements for Thalassemia Minor
Managing thalassemia minor involves using various nutritional supplements. Vitamin C is key, but other vitamins and minerals are also vital. They help keep thalassemia minor patients healthy and well.
Folic Acid and Its Benefits
Folic acid is recommended for thalassemia patients to help make red blood cells. It can lessen some thalassemia complications. The amount needed varies, but usually, patients take 1 to 5 mg of folic acid daily.
Vitamin D and Bone Health
Vitamin D is important for strong bones. Thalassemia patients often lack it due to less sun and diet. Checking vitamin D levels and supplementing can prevent bone issues. Adults need about 600-800 IU of vitamin D daily.
Zinc and Immune Function
Zinc boosts the immune system and helps fight infections. Thalassemia patients might need zinc if they’re deficient. Zinc helps improve immune function and health.
Vitamin E as an Antioxidant
Vitamin E fights cell damage from free radicals. It’s good for thalassemia patients to take vitamin E. Vitamin E’s antioxidants protect cells and support health.
|
Supplement |
Benefit |
Recommended Daily Intake |
|---|---|---|
|
Folic Acid |
Supports erythropoiesis |
1-5 mg |
|
Vitamin D |
Maintains bone health |
600-800 IU |
|
Zinc |
Enhances immune function |
8-11 mg |
|
Vitamin E |
Acts as an antioxidant |
15 mg |
Comprehensive Management Approach for Thalassemia
Managing thalassemia well means regular check-ups, diet changes, and emotional support. It’s about tackling the medical, lifestyle, and mental sides of the disease.
Regular Medical Monitoring Requirements
Thalassemia patients need regular checks to control iron levels and check their health. This includes:
- Regular blood tests to check iron levels and hemoglobin
- Annual cardiac evaluations, including MRI scans to assess cardiac iron overload
- Liver function tests to monitor for signs of iron overload or other complications
Monitoring Schedule
|
Test |
Frequency |
|---|---|
|
Blood tests for iron levels and hemoglobin |
Every 2-3 months |
|
Cardiac MRI |
Annually |
|
Liver function tests |
Every 6 months |
Lifestyle Adaptations for Better Quality of Life
Changing your lifestyle is key to managing thalassemia. This means eating right, avoiding too much iron, and staying healthy. Important changes include:
- Dietary adjustments to avoid iron-rich foods and include iron-chelating foods
- Avoiding alcohol and smoking
- Regular exercise tailored to the individual’s health status
Psychological Support and Resources
Psychological support is vital for thalassemia patients. It helps with the emotional and mental health issues linked to the disease. Resources include:
- Counseling and therapy sessions
- Support groups for patients and families
- Mental health resources and hotlines
By using a full management plan, thalassemia patients can live better lives. They can manage their symptoms and deal with the mental side of the disease.
Consulting Healthcare Providers About Supplementation
When you have thalassemia, it’s important to talk to your healthcare providers before adding supplements. This is key to make sure supplements won’t mess with your current treatment or make your condition worse.
The Role of Hematology Specialists
Hematology specialists are key in managing thalassemia. They know how to guide you on safe supplements. A study shows they can tailor supplements to fit your needs, reducing risks and increasing benefits .
Creating a Personalized Nutrition Plan
Having a personalized nutrition plan is vital for thalassemia patients. Healthcare providers can create a plan that fits your nutritional needs, health, and treatment. This plan should be updated often to match any changes in your health.
Important Questions to Ask Your Doctor
When talking to healthcare providers about supplements, ask the right questions. Some important ones include:
- What are the benefits and risks of the supplement?
- How will the supplement affect my current medicines?
- What’s the right dosage, and how should I take it?
- How will we check if the supplement is working?
Tracking and Reporting Supplement Effects
It’s important to keep track of how supplements affect you and tell your healthcare provider. This helps them adjust your treatment as needed.
|
Supplement |
Potential Benefits |
Potential Risks |
|---|---|---|
|
Vitamin C |
Helps iron chelation therapy work better, boosts hemoglobin |
May cause iron damage, risk of kidney problems |
|
Folic Acid |
Helps make red blood cells |
May interact with some medicines |
Conclusion
Vitamin C supplements can help with thalassemia management, when used with iron chelation therapy. They can make chelation therapy work better, raise hemoglobin levels, and protect against iron harm.
For thalassemia patients, a full management plan is key. This includes regular doctor visits, making lifestyle changes, and getting mental support. It’s important to think carefully about vitamin C supplements. Always do this with a doctor’s advice, considering the good and bad sides.
By using a complete management plan and making smart choices about vitamin C, we can make life better for thalassemia patients. Good thalassemia care needs a mix of medical treatment, diet advice, and ongoing support.
FAQ
What is thalassemia and how does it affect the body?
Thalassemia is a genetic disorder that affects how the body makes hemoglobin. This leads to anemia and other problems. It makes it hard for the body to make healthy red blood cells.
What are the different types of thalassemia?
There are two main types of thalassemia: alpha and beta. Each has different levels of severity, like major, intermedia, and minor.
How is thalassemia minor diagnosed?
Doctors use blood tests to check hemoglobin levels to diagnose thalassemia minor. They also do genetic testing to find the thalassemia trait.
What is iron chelation therapy, and why is it important for thalassemia patients?
Iron chelation therapy uses medicines to remove extra iron from the body. It’s key for managing iron overload, a big problem for thalassemia patients.
Can vitamin C supplementation benefit thalassemia patients?
Yes, vitamin C can help iron chelation therapy work better. It might also improve hemoglobin levels and protect against iron damage.
Are there any risks associated with vitamin C supplementation in thalassemia patients?
Yes, too much vitamin C can cause iron damage and kidney problems. This is because it can increase oxalate levels.
What is the recommended dosage of vitamin C for thalassemia patients?
Doctors usually suggest 2-3 mg/kg/day of vitamin C. This depends on the patient’s age and when they take their chelation therapy.
Are there other supplements that can benefit thalassemia minor patients?
Yes, folic acid, vitamin D, zinc, and vitamin E can help. They support red blood cell production, bone health, and the immune system. They also offer antioxidant protection.
How can thalassemia patients manage their condition comprehensively?
Managing thalassemia well means regular check-ups, making lifestyle changes, and getting psychological support. This helps improve overall health and well-being.
Why is it essential to consult healthcare providers before starting any supplementation regimen?
It’s important to talk to healthcare providers, like hematologists, before starting supplements. They can create a nutrition plan that fits the individual’s needs and health status.
What are the signs of adverse reactions to vitamin C supplementation?
Signs of bad reactions include stomach problems and allergic reactions. If you notice any, you should see your hematologist right away.
How does vitamin C interact with iron metabolism in thalassemia patients?
Vitamin C helps the body absorb non-heme iron. This can be good but also increase oxidative stress if not managed carefully.
References:
- PMC article. (2023). Title. PMC. Retrieved from https://pmc.ncbi.nlm.nih.gov/articles/PMC10167163/
- Balachandar, S., Randolph, R., Kleinert, D. A., Sheth, S., Giardina, P., & Vogiatzi, M. G. (2012). The Effect of Vitamin D Supplementation On Calcium Excretion in Thalassemia. Blood, 120(21), 1029. https://doi.org/10.1182/blood.V120.21.1029 (ashpublications.org)
- ClinicalTrials.gov. (n.d.). Study NCT03919812. Retrieved from https://clinicaltrials.gov/study/NCT03919812
- Mediterranean Journal of Hematology and Infectious Diseases. (n.d.). Article. Retrieved from https://www.mjhid.org/index.php/mjhid/article/view/2013.057/616
- ASH Publications. (n.d.). A Simple Regimen to Correct Vitamin D Deficiency. Blood. Retrieved from https://ashpublications.org/blood/article/116/21/4261/67852/A-Simple-Regimen-to-Correct-Vitamin-D-Deficiency