There are two forms of vitamin D in the body – D2 and D3: their empirical chemical formulae differ by a single carbon atom. We get them from different sources: D2 is found primarily in plant-based foods, while D3 is obtained from animal-origin foods, and is also produced when our skin is exposed to the sun’s rays.
Vitamin D3, or cholecalciferol, is synthesised from a sterol (complex lipid) called 7-dehydrocholesterol, naturally present in the body. When this sterol is exposed to the sun’s UVB rays, it is converted into vitamin D. Most of the vitamin D circulating in the body is produced in this way (1). That’s why we’re advised to expose our skin as much as possible to natural light. Vitamin D3 is also obtained from the diet, in particular from oily fish and egg yolk.
Vitamin D2 is a derivative of ergosterol, a sterol naturally present in the cell membranes of certain plants and fungi. Vitamin D2 is obtained by exposing ergosterol to the sun’s UVB rays. It is found in mushrooms (especially those exposed to UVB rays) as well as in vitamin D-fortified foods like margarine.
Vitamins D2 and D3 are both metabolized in the liver and then converted in the kidneys into the active and usable form of vitamin D (2). However, research has shown that vitamin D3 increases the level of the active and usable form of vitamin D in the body to a greater degree (3). It is also less sensitive to heat and humidity than D2 and thus more stable (4).
As a consequence, if you wish to take a vitamin D supplement, vitamin D3 is the better choice. You have three options to choose from:
References
15 Hours
This supplement gives excellent results from injuries. I suffered 30 months from a Fall. Healing from taking BPC 157 was incredible. God bless you for marketing this product! ♥️
Merilee Estes
1 Days
Good quality products and on time delivery
RICHARD
4 Days
Great customer service and fast shipping. The rep I spoke to went the extra mile to get me the correct answer to my question. The product I received is great.
Sharon Stieber
6 Days
This was a recurring order. The discount is a major factor.
Larry
8 Days
Do you like really good companies? Then you'll love supersmart
Brandon West
8 Days
I have been buying BPC=157 from them for months. I have seen huge benefits and they have had the lowest price except it has gone up substantially as of late.
DUNSTON John
12 Days
Great choices with noted benefits.
Larry
15 Days
Great Product BPC157 with always on time service!
Wm Still
17 Days
Supersmart is a reliable company. I know my product will arrive, and I am always charged exactly as ordered. Supersmart carries high-quality supplements. My last package, the Mastic Gum package is badly deformed from the shipment, but I checked inside and the content is preserved in tact.
Diane
18 Days
Fast Shipping ........... TY
SCOTT Mark
18 Days
Fantastic products with quick shipping. I ordered the epitalon and received it promptly. I’ve been using it for a week now and feel like I’m getting better sleep, I would recommend SuperSmart products.
BECK Michael
23 Days
They have a large variety of supplements all at decent prices. Their shipping is fast. Have not had to contact them for any reason.
philip errichiello
23 Days
Good products !
HOFFMANN Richard
26 Days
Product availabile, fast shipping, and good pricing, whats mot to like...
John
319 Days
Productos excelentes Entrega a tiempo
VINAS Marta Noemi