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#Vitamin d3 25 mcg skin
#Vitamin d3 25 mcg series

The IOM also states that a blood value of over 20 ng/ml (50 nmol/l) should meet the vitamin D needs of 97–98% of healthy people ( 20).

High: Levels greater than 50 ng/ml (125 nmol/l).

Sufficient: Levels between 20–50 ng/ml (50–125 nmol/l).

Insufficient: Levels between 12–20 ng/ml (30–50 nmol/l).

Deficient: Levels less than 12 ng/ml (30 nmol/l).

However, several studies show that taking more than this is linked to greaterĪ vitamin D deficiency can only be discovered through blood tests that measure levels of storage vitamin D, known as 25(OH)D.Īccording to the Institute of Medicine (IOM), the following values determine your vitamin D status ( 19): (10–20 mcg) of vitamin D should meet the needs of 97–98% of healthy people. It exceeds the safe upper limits of intake and is not linked to more health benefits ( 12). However, don’t consume more than 4,000 IU of vitamin D without your doctor’s permission. Scientists found that taking 1,000 IU (25 mcg) of vitamin D daily reduced heart disease risk by 10% ( 16).īased on current research, it seems that consuming 1,000–4,000 IU (25–100 mcg) of vitamin D daily should be ideal for most people to reach healthy vitamin D blood levels. Consuming 2,000 IU (50 mcg) daily would help nearly everyone reach a blood level of 33 ng/ml (82.4 nmol/l) ( 15, 17, 18).Īnother analysis of seventeen studies with over 300,000 people looked at the link between vitamin D intake and heart disease. Research also shows that consuming 1,000 IU (25 mcg) daily would help 50% of people reach a vitamin D blood level of 33 ng/ml (82.4 nmol/l). Scientists found that people with the highest blood levels of vitamin D (over 33 ng/ml or 82.4 nmol/l) had a 50% lower risk of colorectal cancer than people with the lowest levels of vitamin D (less than 12 ng/ml or 30 nmol/l). To reach blood levels linked to better health outcomes, many studies have shown that you need to consume more vitamin D than the guidelines recommend ( 14, 15, 16).įor instance, an analysis of five studies examined the link between vitamin D blood levels and colorectal cancer ( 15).

#Vitamin d3 25 mcg skin

These include your age, skin color, current blood vitamin D levels, location, sun exposure and more. Your vitamin D needs depend on a variety of factors. However, many experts believe the guidelines are far too low ( 13. In the US, current guidelines suggest that consuming 400–800 IU (10–20 mcg) of vitamin D should meet the needs of 97–98% of all healthy people ( 12). D3 is twice as effective at raisingīlood levels of vitamin D, which is linked to a variety of health benefits. Research also shows that vitamin D aids your immune system and may reduce your risk of heart disease and certain cancers ( 8).Ī low blood level of vitamin D is linked to a greater risk of fractures and falls, heart disease, multiple sclerosis, several cancers and even death ( 9, 10, 11).įorms of vitamin D in the diet: D2 and D3. These minerals are important for healthy bones ( 7). The main role of vitamin D in the body is to manage blood levels of calcium and phosphorus. Interestingly, D3 is twice as effective at raising blood levels of vitamin D as vitamin D2 ( 6). Later, the storage form is converted by the kidneys to the active form of vitamin D that’s used by the body ( 5). This is the form that is measured in blood tests.

#Vitamin d3 25 mcg series

The UV rays from sunlight convert cholesterol in your skin into vitamin D3 ( 1).īefore your body can use dietary vitamin D, it must be “activated” through a series of steps ( 5).įirst, the liver converts dietary vitamin D into the storage form of vitamin D. However, sunlight is the best natural source of vitamin D3. Vitamin D3 (cholecalciferol): Found in animal foods like salmon, cod and egg yolks.Vitamin D2 (ergocalciferol): Found in plant foods like mushrooms.

There are two main forms of vitamin D in the diet: These vitamins are absorbed well with fat and are stored in the liver and fatty tissues.

Vitamin D belongs to the family of fat-soluble vitamins, which include vitamins A, D, E and K.