In Digambar Jain dharma, an algae oil omega-3 capsule is not ideal for strict observance, because it is derived from living algae and is a processed supplement, not a naturally pure food.

A simple guideline is:

• If it is only for general wellness and can be avoided, many strict Jains would avoid it.
• If it is needed for health and there is no suitable alternative, it may be taken with care and limited intention, because Jain dharma places strong value on preserving health too.
• Check the capsule shell carefully: if it contains gelatin, it should be avoided. A vegetarian capsule is better.

So, in short: for a strict Digambar Jain, it is preferably avoided unless medically necessary.