Question

What is the recommended dietary allowance (RDA) of EPA and DHA?

• A. 1g
• B. 2g
• C. 3g
• D. 4g

Hint:

Fatty fish like Mackerel, Sardines, and Salmon are the best natural sources of EPA and DHA. Consuming two servings of fatty fish per week generally meets the lower end of the recommended intake.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Eicosapentaenoic acid (EPA) and Docosahexaenoic acid (DHA) are long-chain omega-3 fatty acids primarily found in fatty fish and marine oils. These are considered essential for human health as the body can only synthesize very small amounts from alpha-linolenic acid (ALA). They are vital for cardiovascular health, cognitive function, and reducing systemic inflammation.
Detailed Explanation:
The Recommended Dietary Allowance (RDA) or daily intake guidelines for EPA and DHA vary depending on health organizations (such as WHO, AHA, or EFSA) and the specific health status of an individual (e.g., general health vs. existing heart disease).

For general cardiovascular health and the prevention of coronary heart disease, many international health bodies recommend a combined intake of approximately 250--500 mg per day. However, for individuals with existing heart conditions or for therapeutic purposes, the recommendation is significantly higher.

According to the American Heart Association (AHA), patients with documented coronary heart disease should consume about 1 gram of EPA and DHA combined per day, preferably from oily fish or supplements under medical supervision. In the context of fisheries and nutritional science examinations, the standard reference value often targeted for health optimization is 1g per day. High doses (up to 4g) are sometimes used for treating high triglycerides, but these are clinical doses rather than general RDA values.

Step 2: Final Answer:
The generally accepted nutritional and clinical benchmark for daily EPA and DHA intake for heart health is 1g.