Mega‑3 Capsules contain omega‑3 fatty acids such as DHA and EPA, which are typically derived from fish oil. Since the source is animal-based, these capsules are not suitable for vegetarians or vegans. For those following a vegetarian or vegan lifestyle, the best alternative is to choose omega‑3 supplements specifically labelled vegetarian or vegan, often made from algae oil, and ideally taken under a doctor's guidance.