Flax seed oil provides alpha-linolenic acid (ALA), a plant-based omega-3 fatty acid. The body converts only a small percentage of ALA into the longer-chain EPA and DHA forms. That conversion rate is roughly 5 to 10 percent for EPA and even lower for DHA.
Many people take flax seed oil as a vegetarian alternative to fish oil. It fits easily into smoothies, salad dressings, or can be taken straight from a spoon. The oil contains no marine-derived ingredients, making it suitable for plant-based diets.
Typical daily doses range from 1 to 2 tablespoons, which supplies around 7 to 14 grams of ALA. Capsules offer a more convenient, pre-measured option for those who dislike the taste.
Freshness matters because flax seed oil turns rancid quickly when exposed to heat, light, or air. Refrigerate the bottle and use it within a few weeks of opening. Rancid oil smells off, tastes bitter, and should be discarded.