Supplements can indeed be beneficial for health, but it's important to approach them rationally and understand their purpose. They are designed to augment nutrition and can be particularly useful in compensating for deficiencies that might arise from diet or lifestyle, such as lack of adequate vitamin and mineral intake. However, it's crucial to remember that there is no pill that can replace excellent behavioral protocols like exercise, sleep, and social connection.
In the context of eye health, for instance, certain supplements have shown to slow the progression of conditions like macular degeneration in rigorous randomized control trials.
However, it's essential to consult a trusted board-certified physician before adding or subtracting any supplementation-based protocols. The ideal dosage of a given supplement for you might be zero milligrams if you're already meeting your health needs through other means. So, while supplements can support overall health and lead to specific health and performance outcomes, they should be considered as part of a larger context of overall health and wellness.