Thorne Vitamin D-5000 - Vitamin D3 Supplement for Healthy Bones, Muscles, Cardiovascular, and Immune Support

Vitamin D is an essential bone-building vitamin that supports your body's ability to absorb calcium, the primary component of bone. Additionally, vitamin D supports muscles, nerves, and the immune system. Low levels of vitamin D are linked to a range of health risks and adverse consequences.

In the United States, most dietary vitamin D comes from fortified foods such as breakfast cereals, milk, and some yogurts. However, very few foods naturally contain significant amounts of vitamin D, with the exceptions of fatty fish, beef liver, cod liver oil, cheese, egg yolks, and some mushrooms.

Vitamin D deficiency, defined as a blood level below 20 nanograms per milliliter (ng/mL), is relatively common, affecting 42% of the U.S. population according to one large survey. Many experts believe that optimal health requires blood levels of at least 30 ng/mL.

You may be at a higher risk of vitamin D deficiency if you engage in indoor athletics, have limited sun exposure for various reasons, have difficulty absorbing fats, live in northern latitudes, have a darker skin tone, regularly use high-SPF sunscreen, or are an older adult.

A healthy diet alone may not provide enough vitamin D, as few foods naturally contain significant amounts. In such cases, a dietary supplement can help make up the difference.* A blood test to measure 25-hydroxyvitamin D levels is the best way to determine your vitamin D status.

Sufficient vitamin D levels can promote healthy bones and teeth, help build and maintain muscle mass and strength, support normal immune function, prevent falls in older adults, and maintain healthy brain function and weight.*

The recommended amount of a vitamin D supplement depends on your blood level. Unless your blood level is extremely high, you can safely take 1,000 international units (IU) daily. If your level is very low, your healthcare provider may recommend a higher dose, such as 5,000 IU daily, for a period of time.

Vitamin D supplements are generally well-tolerated, but excessive intake can cause side effects like nausea, vomiting, constipation, diarrhea, fatigue, and poor appetite. If you take prescription medications, consult your healthcare provider about potential interactions with vitamin D supplements.

Thorne's Vitamin D3 supplement is NSF Certified for Sport, supports high-performance nutrition programs, and is free from common allergens. Thorne is the only supplement manufacturer to collaborate with Mayo Clinic on wellness research and content, and is a proud partner of 11 U.S. Olympic Teams.

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