The Indian Council of Medical Research (ICMR) guidelines from 2010 specify the conversion ratio for beta carotene to vitamin A (retinol) for dietary purposes.
According to ICMR (2010), the recommended conversion ratio is:
This means that 8 micrograms (mcg) of dietary beta carotene are considered equivalent to 1 microgram (mcg) of retinol activity.
Therefore, the correct conversion ratio is 1:8.
| List-I (Terms) | List-II (Explanations) |
| A. Biohazards | I. Single celled living organism |
| B. Bacteria | II. Most lethal ultra microscopic inert infectious agents |
| C. Viruses | III. Organisms which live in or on another living organisms |
| D. Parasites | IV. Hazards related to disease in plants, animals and humans |