What does the card say about the vitamin E 400 IU capsules? — FITS Vitamin E capsules 400iu 30 pcs

According to the card, this is a food supplement with vitamin E (tocopherol): the pack holds 30 capsules, each containing 400 IU of vitamin E. The exact composition, the recommended daily dose and further information are given on the packaging. Why vitamin E should be taken in capsules if it is found in food, the card does not explain.

General information (not a manufacturer's instruction): the supplement is not a substitute for a varied diet, and 400 IU in a capsule is a high dose.