Independent supplement research / cited and compared
Understand what a supplement can do, where the evidence stops, and which products earn a closer look.
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Reference library
Evidence and buying guide
Vitamin D3 supports bone health by enhancing calcium absorption and promoting immune function. It is often used to address deficiency, support mood, and maintain overall wellness, especially for those with limited sun exposure.
Evidence and buying guide
Omega-3 is an essential fatty acid that supports heart health, brain function, and may help reduce inflammation. It is commonly used to promote joint health and immune support.
Evidence and buying guide
Magnesium is an essential mineral that supports muscle and nerve function, promotes relaxation, and contributes to bone health. It is commonly used to alleviate muscle cramps, support sleep quality, and help manage anxiety and stress.
From the research desk
Human trials suggest cocoa flavanols can produce short-term changes in regional cerebral perfusion or cortical oxygenation, especially in some healthy older adults. However, these vascular signals have not translated consistently into better cognitive performance, and large long-term trials in older adults have found no overall cognitive benefit.
Controlled human research suggests that a standardized oral lavender-oil preparation, Silexan, can reduce anxiety-rating scores over roughly six to ten weeks in adults with subthreshold anxiety or generalized anxiety disorder. The evidence is promising but product-specific, short-term, and not sufficient to establish effects for every lavender supplement or population.
Human studies suggest that some sage preparations can improve selected memory or attention-test scores, especially after acute use in healthy adults. Evidence in Alzheimer’s disease comes mainly from one small, short placebo-controlled trial. Formulations differ substantially, and long-term safety and real-world cognitive benefit remain uncertain.