Should I take omega-3 fatty acids?

Our read is that omega-3 fatty acids, particularly EPA and DHA, are widely considered beneficial for supporting inflammatory response, cardiac health, and potentially increasing life expectancy.

Experts suggest that supplementing with approximately 2-5 grams daily can significantly increase the omega-3 index, which is associated with reduced mortality risk and improved muscle recovery.

However, some experts caution against high doses of fish oil due to concerns about oxidation, potential negative side effects, and the sufficiency of dietary sources for many individuals.

Supplementing with approximately 2-5 grams of omega-3 per day, ideally with a 1:1 EPA to DHA ratio, is suggested by some experts. Ethyl ester fish oil supplements are less bioavailable and require consumption with food for absorption.

• 01Andrew Huberman and Rhonda Patrick (20x) stated that supplementing with approximately 2 grams of omega-3 per day can increase the omega-3 index from 4% to 8%.
• 02Paul Saladino (1x) noted that meat-based diets provide essential nutrients like fat-soluble vitamins, omega-3s, DHA, and EPA, which may have facilitated brain growth.
• 03Paul Saladino (2x) observed that traditional Okinawans and other long-lived populations consumed low levels of omega-6 (around 1.5% of calories).
• 04Andrew Huberman and Rhonda Patrick (9x) claimed that omega-3 fatty acids, taken at a total dose of 2-5 grams daily with a 1:1 EPA to DHA ratio, can support the inflammatory response in muscle recovery.
• 05Peter Attia (2x) mentioned that measuring homocysteine levels and omega-3 index is easy and offers potential benefit.
• 06Rhonda Patrick (2x) reported that omega-3 supplementation (2g EPA, 1g DHA) for 12 weeks increased fat burning during exercise by 27% and decreased triglycerides by 29%.
• 07Peter Attia, Andrew Huberman, and Rhonda Patrick (6x) highlighted that specialized pro-resolving mediators (SPMs) are crucial for inflammation resolution.
• 08Bryan Johnson (1x) stated that dietary focus for cardiac health and improved heart rate recovery includes healthy fats like omega-3 and extra virgin olive oil, and polyphenols from EVOO, berries, and dark chocolate.
• 09Rhonda Patrick (4x) associated higher omega-3 levels with a 15% lower risk of all-cause mortality between ages 65 and 75.
• 10Rhonda Patrick (1x) noted that omega-3 has a safety profile similar to a nutrient but is pharmacologically active, and a significant global majority (80%) and nearly all people in the U.S. (95%) do not consume adequate amounts.
• 11Andrew Huberman and Rhonda Patrick (22x) claimed that smokers with a high Omega-3 Index have the same life expectancy as non-smokers with a low Omega-3 Index.
• 12Andrew Huberman (1x) mentioned that ingesting high levels of EPA through fatty fish or supplements is a common practice in Scandinavian countries during winter to combat depression.
• 13Andrew Huberman (1x) stated that omega-3 fatty acids are heart-healthy, anti-inflammatory, anti-Alzheimer's, and life-saving, while trans fats are harmful and cause chronic metabolic disease and insulin resistance.

Paul Saladino (1x) warned that farm-raised salmon are loaded with endocrine-disrupting chemicals, flame retardants, and heavy metals. Rhonda Patrick (1x) suggested that taking four grams of free fatty acids daily may induce a chronic systemic inflammatory response. Paul Saladino (4x) considered fish oil oxidized and undesirable, with no solid evidence supporting the purported benefits of high doses (4-6 grams), and (4x) suggested fish oil may be more harmful than omega-6 seed oils. Paul Saladino (2x) stated that consuming large doses of omega-3 from fish oil is evolutionarily inappropriate and can lead to significant negative side effects. Andrew Huberman (2x) noted that omega-3 supplementation can thin the blood, leading to increased bruising and necessitating discontinuation before surgery. Paul Saladino (3x) argued that high doses of omega-3 supplementation (e.g., 3 grams) are likely unnecessary for individuals on a low linoleic acid diet, and (3x) that most individuals can obtain sufficient omega-3 fatty acids from dietary sources like egg yolks and grass-fed meat, negating the need for fish oil supplements. Paul Saladino (4x) also stated that fish oil is susceptible to oxidation, and the body can obtain sufficient amounts from meat without needing to supplement. Rhonda Patrick (1x) clarified that taking omega-3 supplements does not compensate for the risks associated with smoking. Peter Attia and Rhonda Patrick (2x) noted that the DHA component of omega-3s may slow down LDL receptor activity, leading to increased LDL levels. Rhonda Patrick (1x) mentioned that free fatty acid forms of EPA and DHA can be significant gastrointestinal irritants. Peter Attia and Rhonda Patrick (2x) also stated that DHA is not definitively the brain omega-3 and EPA is not definitively the heart omega-3, nor is one better than the other for any given system.

The verdict could change if further research clarifies the optimal ratio of omega-6 to omega-3 fatty acids, the specific mechanisms behind increased atrial fibrillation with high-dose omega-3s, or if more robust evidence emerges regarding the efficacy of omega-3 supplementation for glucose handling in type 2 diabetes patients, as noted by Paul Saladino (1x) and Rhonda Patrick (2x, 1x). Additionally, clearer clinical trial data for DHA's benefit, beyond trials stopped for futility, would be impactful, as mentioned by Peter Attia (1x).