In what type of diet would docosahexaenoic acid (DHA) supplementation be important?

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Study for the eatrightPREP Domain 2 Dietetics Exam. Use flashcards and multiple-choice questions, with hints and explanations for each. Prepare confidently for your exam!

Multiple Choice

In what type of diet would docosahexaenoic acid (DHA) supplementation be important?

Explanation:
DHA is a long-chain omega-3 fatty acid that supports brain and eye health and helps modulate inflammation. It’s most abundant in fatty fish and other seafood, which are common sources of preformed DHA. In vegan diets, there are no animal foods to provide this preformed DHA, and while plants supply ALA, the body’s conversion of ALA to DHA is limited and highly inefficient. As a result, people following vegan diets are at risk of inadequate DHA intake unless they use algae-based DHA supplements or fortified foods. The other options don’t inherently determine DHA status: FODMAP and gluten-free patterns focus on specific carbohydrates or gluten avoidance, and an anti-inflammatory approach may influence omega-3 intake but doesn’t uniquely define the need for DHA supplementation the way veganism does.

DHA is a long-chain omega-3 fatty acid that supports brain and eye health and helps modulate inflammation. It’s most abundant in fatty fish and other seafood, which are common sources of preformed DHA. In vegan diets, there are no animal foods to provide this preformed DHA, and while plants supply ALA, the body’s conversion of ALA to DHA is limited and highly inefficient. As a result, people following vegan diets are at risk of inadequate DHA intake unless they use algae-based DHA supplements or fortified foods. The other options don’t inherently determine DHA status: FODMAP and gluten-free patterns focus on specific carbohydrates or gluten avoidance, and an anti-inflammatory approach may influence omega-3 intake but doesn’t uniquely define the need for DHA supplementation the way veganism does.

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