Omega-3s are fats your body uses to build cell membranes. EPA and DHA come mainly from fish and algae; ALA comes from plants such as flaxseed and walnuts. This department brings together fish oil, algae oil, krill oil, cod liver oil, flaxseed oil and omega-3-6-9 blends.
What to look for on the label
"1,000 mg fish oil" is not 1,000 mg of omega-3. The Supplement Facts panel shows EPA and DHA per serving, and a typical 1,000 mg fish oil softgel provides about 180 mg EPA and 120 mg DHA. Check the serving size (often two softgels) and the best-by date. If a plant-based source matters to you, look for algae oil and a vegan statement on the label.
Good to know
Store oils away from heat and light. Ask your doctor first if you take a blood thinner such as warfarin or have a fish or shellfish allergy (krill is a shellfish). Cod liver oil also contains vitamin A. Related: Vitamins, Protein & Sports Nutrition and Women's, Men's & Kids' Health, and How to read a supplement label.
Frequently asked questions
Fish oil or algae oil?
Both can supply EPA and DHA; algae oil is the plant-based option. Compare EPA and DHA per serving, not the total oil.
Why does fish oil sometimes taste fishy?
Some aftertaste is common, and taking softgels with a meal can help.
How much omega-3 is too much?
The FDA has concluded that up to 5 grams a day of EPA and DHA combined from supplements is safe for most adults. Many people take far less; follow the label and your doctor's advice.
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