THORNE Vitamin D-5000 Supplement - Support Healthy Bones, Teeth, Muscles, Cardiovascular, and Immune Function

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Product Description This information is provided to assist you in making an informed decision. Remember to consult with your healthcare professional before starting a supplement regimen. Mayo Clinic does not endorse any non-Mayo products or services. However, Mayo Clinic has authorized Thorne Research to distribute Mayo Clinic health information as part of its commitment to serve as a reliable resource for the public.

Published: 12/09/2016

What is Vitamin D? Vitamin D is an essential nutrient that plays a crucial role in bone health. Your body can effectively absorb calcium, the primary component of bone, only when sufficient vitamin D is present. Additionally, vitamin D supports muscle function, nerve health, and the immune system. Low vitamin D levels are associated with various health risks and adverse consequences.

Dietary Sources of Vitamin D In the United States, most dietary vitamin D is obtained from fortified foods, such as breakfast cereals, milk, and some yogurts. Certain brands of orange juice, margarine, and soy beverages also contain added vitamin D. Very few foods naturally possess vitamin D, though small amounts can be found in: - Fatty fish (e.g., salmon, tuna, herring, mackerel, and sardines) - Beef liver - Cod liver oil - Cheese - Egg yolks - Some mushrooms

Should You Consider Taking Vitamin D? Vitamin D deficiency, defined as a level below 20 nanograms per milliliter (ng/mL), is relatively common in the United States, affecting an estimated 42% of the population. Many experts believe that optimal health requires blood levels of at least 30 ng/mL. However, obtaining sufficient vitamin D can be challenging for many individuals. Direct sunlight exposure is the most efficient source, but factors such as geographic location, lifestyle, and sunscreen use can limit this natural source. Certain groups, including those with limited sun exposure, malabsorption issues, obesity, or advanced age, are at a higher risk of vitamin D deficiency. If your diet alone does not provide adequate vitamin D, supplementation may be beneficial.*

Potential Health Benefits of Vitamin D Maintaining sufficient vitamin D levels can offer several advantages: - Promotes healthy bones and teeth - Helps build and maintain muscle mass and strength - Supports normal immune function - Helps prevent falls in older adults - Supports normal brain function - Assists in maintaining a healthy weight

Proper Vitamin D Supplementation The recommended dosage of a vitamin D supplement depends on your blood levels. Unless you have an unusually high starting point, you can safely take 1,000 international units (IU) of vitamin D daily. However, if your blood levels are very low, your healthcare provider may suggest a higher initial dose, such as 5,000 IU daily, for a limited period. Vitamin D supplements are generally well-tolerated, but it's important to follow your provider's guidance, especially if taking more than the Institute of Medicine's recommended upper limit of 4,000 IU daily. Periodic blood tests to monitor your levels are advisable.

Potential Side Effects and Interactions Vitamin D supplements have few risks when used appropriately. However, excessive intake can lead to side effects like nausea, vomiting, constipation, diarrhea, fatigue, and poor appetite. Additionally, vitamin D may interact with certain prescription medications, so it's essential to consult your healthcare provider before starting supplementation.

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