Categories Vitamin

Vitamin D Absorption – All Vitamin D isn’t Produced Equal

The Vitamin D Council recommends that healthy people receive 5,000-10,000 IU of vitamin D daily to keep optimal health. A number of strategies are necessary to maintain this intake in regions north from the 42 latitude including Boston, Rome and Beijing. The Ultra violet energy only at that latitude is inadequate for vitamin D synthesis from November through Feb and additional north this “vitamin D winter” may last six several weeks or longer.

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You will find 3 ways of making certain sufficient intake within our northern regions:

expose because your skin as you possibly can (without having to burn) towards the mid-day sun throughout the late spring, summer time, and early fall

make use of a sun bed throughout the winter several weeks.

take 5,000 IU each day for just two-3 several weeks, then get yourself a vitamin D bloodstream make sure adjust your dosage to keep bloodstream levels between 50-80 ng/mL (125-200 nmol/L) year-round.


The body will instantly regulate just how much vitamin D it creates from sunshine. Research has shown that sunbathing within the summer time for around half an hour can lead to producing over 10,000 IU of vitamin D which once the skin we have makes about 20,000 IUs, the ultraviolet light starts to degrade the vitamin to ensure that we don’t “overdose” around the sun.

Vitamin D absorption in the sun could be affected by a few factors.

Complete cloud cover can help to eliminate ultraviolet energy (Ultra violet) B by 50%

Shade (including that created by severe pollution) can help to eliminate it by 60%

Ultraviolet B radiation doesn’t penetrate glass

Sunscreens having a sun-protection factor of 8 or even more seem to block vitamin D

Quickly 50 synthesize vitamin D less efficiently as well as their kidneys are less in a position to convert vitamin D to the active hormone form

Individuals with more dark skin produce less vitamin Of sunlight than individuals with lighter skin

Weight problems causes some vitamin D to sequester within the fat and prevents it from circulating in your body


The designation of “USP” or “CL” on the label helps you to guide us to some quality supplement. Supplements that bear The U . s . States Pharmacopeia (USP) or Consumer Lab (CL) abbreviations meet voluntary industry standards for quality, wholesomeness, and tablet disintegration or dissolution. But exactly how does vitamin D absorption compare in the different sorts of supplements?

Tablets And Capsules

Capsules are usually “purer” than tablets as they do not have excipients, lubricants, or any other ingredients accustomed to aid the manufacturing process. Most capsules also disintegrate quickly within the stomach and release their contents rapidly while tablets may dissolve incompletely or otherwise dissolve whatsoever. In most cases, capsules are superior to tablets.


Flaxseed and essential olive oil are frequently put into vitamin D softgel and drops to be able to improve absorption. Caution should be taken when putting vitamin D drops inside a drink or on food because they may follow the side from the container and escape ingestion.

Cod Liver Fish Oil

Many brands of cod liver fish oil undergo a procedure that removes all the natural vitamins including vitamin D… even though some manufacturers restore vitamins towards the final product. While manufacturers reason that their oils provide more absorbable nutrients due to the high vit a content, this really is broadly disputed as vit a deficiency is rare in civilized world. Throughout the winter several weeks in northern regions several tablespoons cod liver fish oil could be needed every day to keep sufficient bloodstream levels.


Like a fat-soluble vitamin, vitamin D absorption is improved upon when taken with meals or having a snack which includes some nutritional fat.

The Vitamin D Council advises that numerous co-factors also assist the body to make use of vitamin D correctly. Included in this are:



vitamin K2


a small quantity of vit a

Magnesium is an essential of those co-factors as raising vitamin D intake may worsen a fundamental magnesium deficiency. Actually, issues with vitamin D supplements can be a manifestation of magnesium deficiency- that is common in The United States.