DHA stands for docosahexaenoic acid and is an omega-3 fatty acid. The body produces small quantities of DHA naturally, but the only way to get enough DHA is from food or supplements. Fish oil supplements are common sources of DHA, but many vegans take algae derived DHA instead. The original source of DHA in fish is algae. Fish absorb DHA from algae when they eat it. Companies have developed the ability to grow algae in fermentation tanks and abstract DHA from the algae.
Should I Take Algae or Fish Oil Supplements?
Fish oil supplements are a better source of DHA, according to Andrew Weil, M.D. This is because the DHA found in fish oil is already in the form the body needs. The only time where DHA is a better option is in infant formula. This is because fish oil contains other fats aside from DHA that slow down the growth of babies.
Why Is DHA Important?
DHA is important because it’s essential for brain function in adults and for the development of the nervous system. In addition, babies need DHA for proper vision during the first six months of life. Dietitians will tell you that eating foods rich in DHA also helps with learning ability. Low levels of DHA in the brain are associated with cognitive decline during aging and the development of sporadic Alzheimer’s Disease.
If you only take algae derived DHA, you won’t be getting other important fats like EPA that fish oil has. Aside from taking supplements, vegetarians can add omega-3s to their diet by eating foods like nuts and seeds and cooking with healthy vegetable oils. The majority of people in the United States don’t have enough DHA in their diet.