Is provision of substantial dietary interventions for brain health ethical?

This paper explores the ethical considerations of promoting substantial dietary changes for brain health despite inconclusive evidence. The authors argue that such interventions, while promising, must include informed consent, balanced communication, and follow-ups to prevent false hope or harm. They highlight that whole-food, plant-based diets have potential neuroprotective effects, yet the complexity of dietary impact on cognition makes causality difficult to establish. Ethical concerns include conflicts of interest, the risk of brain healthism, and the challenge of balancing health goals with other life priorities.

For brain health, individuals should focus on whole-food dietary patterns rather than supplements, as food-based nutrition shows stronger associations with cognitive benefits. However, given the ethical concerns and current evidence gaps, dietary changes should be made with realistic expectations, gradual implementation, and professional guidance. Balance with other lifestyle factors, including cognitive stimulation and physical activity, remains crucial.