Flaxseed, Chia Seeds, and Walnuts: The Big Three Plant Sources of ALA

What Is ALA

Alpha-linolenic acid (ALA) is one of the essential omega-3 fatty acids — the body can't produce it on its own, so it has to come from food. It's also the raw material the body uses to synthesize EPA and DHA, making it the starting point for omega-3 intake for vegetarians.

Comparing the Big Three Sources

• Flaxseed (ground): About 1.6 to 2.4 grams of ALA per tablespoon (roughly 7 grams)
• Chia seeds: About 1.8 to 2.1 grams of ALA per tablespoon (roughly 12 grams)
• Walnuts: About 6.5 to 9 grams of ALA per 100 grams, or roughly 2 to 2.5 grams in a small handful (about 28 grams)
• Hemp seeds: About 1 gram of ALA per tablespoon, along with a good amount of protein

How to Eat Them for Best Absorption

Flaxseed needs to be ground before eating — whole seeds are hard for the digestive tract to break down and absorb — so sprinkle it over oatmeal, plant-based yogurt, or salads. Chia seeds swell into a gel when soaked in water, making them great for puddings. Walnuts can be eaten straight as a snack or added to dishes. Rotating through these three foods to get 2 to 3 grams of ALA a day is a solid foundation for omega-3 intake on a vegetarian diet — consistent daily intake works more reliably than the occasional large dose.