what is the required epa and dha daily

There isn’t one universal required daily dose established here. The general target discussed is at least 1 gram of EPA daily, with 1–3 grams per day given as a practical range; no specific required DHA dose is stated. 1 2

• For mood and depression: About 1–2 grams of EPA daily is discussed, with 1 gram as the threshold associated with benefit; the evidence does not mean that more is always better. 1
• DHA: It is described as beneficial, including for cell membranes and inflammation, but EPA is more specifically linked to the mental-health benefits discussed. 3 4
• Rhonda Patrick’s intake: She says she takes 4 grams total daily, split between morning and evening, taking EPA in the morning and DHA in the evening. 5