Vitamin D


Vitamin D has a dual origin, both dietary and endogenous skin is capable of producing large quantities after exposure to sunlight or ultraviolet irridation. It seems that exposure of the face and arms seem to be sufficient if the intensity of the UV radiation in sunlight is optimal.

Vitamin D ensures optimal mineralization of mineralized tissues during and after growth (bone, cartilage, teeth) and helps maintain calcium homeostasis. It is essentially the ossification in the immune response. it plays a role in differentiation and cell repair by acting on genes (such as vitamin A), it decreases insulin resistance and has a regulatory role on blood pressure.

Sources of Vitamin D

See the list of foods that provide the most vitamin D


The 100% value in the RNI Nutrimeter ® is 5 mcg per day in adults.

The safety threshold for children over 2 years old and healthy adults, in addition to endogenous and exogenous intake is 25 micrograms per day (we retain the value of 600% in the Nutrimeter ®).

(Source: "Recommended dietary allowances for the French population," the CNERNA-CNRS. Edition coordinated by Ambroise Martin.)