Official wording — reproduced verbatim
What the standard text says
Dietary supplements and substances that can be purchased without prescription, including but not limited to Vitamins, minerals and organic substances unless prescribed by a medical practitioner as part of hospitalization claim or day care procedure.
Source: IRDAI, Guidelines on Standardization of Exclusions in Health Insurance Contracts, page 9. Open the official PDF ↗
In plain English — our reading
What that means on the page
Non-prescription supplements are excluded unless a doctor prescribes them as part of a hospitalisation claim or day-care procedure.
This explains the standard wording. Your policy schedule, endorsements and other clauses may change how the document applies to you.