The ICMR-NIN RDA 2020 revised the recommended dietary allowance for Vitamin D in adult Indians (18–60 years, both sexes) to:

• A 200 IU (5 µg)/day
• B 400 IU (10 µg)/day
• C 600 IU (15 µg)/day ✓
• D 800 IU (20 µg)/day

Explanation

The ICMR-NIN Dietary Reference Values 2020 revised the RDA for Vitamin D for adults aged 18–60 years to 600 IU (15 µg) per day, increased from the earlier 400 IU recommendation. For individuals aged >60 years, the recommendation is 800 IU (20 µg)/day. This revision accounts for low sun exposure in urban populations, darker skin pigmentation, and widespread subclinical deficiency documented in Indian population surveys. The tolerable upper intake level is set at 4000 IU/day for adults.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.