A study conducted on 56 people found that supplementing with 640 mg of fish oil daily for a period of four weeks reduced blood clotting in healthy adults (. Maintaining a moderate dose and taking supplements with meals can often effectively reduce acid reflux and alleviate symptoms. A study of 395 children, for example, showed that taking 600 mg of omega-3 fatty acids daily for 16 weeks helped improve sleep quality (2). For reference, a typical 1000 mg fish oil softgel generally contains approximately 250 mg of EPA and DHA combined, while one teaspoon (5 ml) of packages of liquid fish oil in approximately 1,300 mg.
According to the European Food Safety Authority, omega-3 fatty acid supplements are can be safely consumed in doses up to 5000 mg per day (2). If omega-3 fatty acids can help with constipation, can fish oil be too effective and cause diarrhea? Keep in mind that consuming large amounts of fish oil or taking a poor-quality fish oil supplement can sometimes contribute to unpleasant gastrointestinal problems and loose stools. Fish oil supplements are often made from certain types of fish, such as salmon, tuna, mackerel, herring, halibut, cod liver, seal fat, or whale fat. Many of its benefits come from its omega-3 fatty acids.
These acids lubricate the intestines so that food can move easily through the colon. Fish oil is a great source of omega-3, but flax oil and hemp oil also work well.