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Understand the evidence before you buy.

Sugar Signal is an independent publication about dietary supplements marketed for blood-sugar and metabolic support. We separate product marketing from what research can actually establish.

How we approach supplement claims

Dietary supplements are not a substitute for medical care. Evidence for supplements studied in type 2 diabetes is often limited or inconsistent. We use cautious language, link to authoritative sources, and distinguish evidence about an ingredient from evidence about a finished product.

Health note: If you have diabetes, take glucose-lowering medication, are pregnant, have kidney or liver disease, or are considering changing treatment, discuss supplements with a qualified healthcare professional.