Scientific Monograph

Vitamin D3

Synonyms:CholecalciferolSunshine vitamin

Vitamin D3 is the form of vitamin D your skin makes from sunlight, and it supports normal bones and normal immune function.

Functional & Biological Role

Key Action 1

Vitamin D supports the maintenance of normal bones and teeth.

Key Action 2

Vitamin D contributes to normal muscle function.

Key Action 3

Vitamin D supports the normal function of the immune system.

Key Action 4

Vitamin D contributes to normal absorption and use of calcium and phosphorus.

Dietary Occurrence in Everyday Food

How this nutrient occurs naturally across standard Indian and international food sources:

Sunlight on bare skin, which is the main source rather than food
Fatty fish
Egg yolk
Fortified milk and some fortified oils

Populations With Elevated Nutritional Demand

People who spend most daylight hours indoors

Anyone who covers most of their skin when outdoors

Older adults, whose skin makes less vitamin D from the same sun exposure

Daily Reference Intake & Absorption Dynamics

ICMR-NIN Recommended Guidelines

The ICMR-NIN recommended intake for Indian adults is around 600 IU (15 micrograms) a day where sun exposure is limited.

This monograph explains what Vitamin D3 does as a physiological micronutrient. It constitutes general nutritional transparency under FSSAI regulations, not medical diagnoses or disease cure claims. Health supplement; not for medicinal use. Read our health disclaimer.
Targeted Nutrition
Formulas Containing Vitamin D3
Loginutra Multivitamin Tablets for Women — 90 Veg Tablets

Vitamins & minerals with vitamin D3, zinc, biotin & antioxidants · 1 tablet a day

549
View Formula
Loginerve — Methylcobalamin 1500 mcg with Alpha Lipoic Acid, 90 Tablets

Active vitamin B12 + B1, B6, folic acid, vitamin D3 & calcium · 1 tablet a day

599
View Formula

Clinical Transparency

CategoryNutraceutical
StandardICMR-NIN Aligned
Quality ProtocolGMP Certified
Allergen SafeTested Clean

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*These statements have not been evaluated by the Food and Drug Administration.

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