Vanadyl sulfate
Vanadyl sulfate is a supplemental vanadium compound studied for effects on blood sugar and insulin sensitivity, but long-term safety concerns and limited clinical evidence restrict its use.
Vanadyl sulfate is the most common supplemental form of the trace mineral vanadium, found in small amounts in the diet. It is marketed for potential benefits in blood sugar control and athletic performance, but evidence in humans is limited and it is not considered an essential nutrient.
Most human studies are small, short-term, and show inconsistent results; risks of toxicity outweigh the modest potential benefits for most people.
May modestly improve insulin sensitivity and blood sugar control
LimitedSome clinical studies have shown that vanadyl sulfate can improve fasting glucose and insulin sensitivity in people with type 2 diabetes, but effects are typically small and not consistent across all trials.
Antioxidant effects in preclinical research
LimitedVanadyl sulfate has demonstrated antioxidant properties in laboratory and animal studies, but there is insufficient human data to confirm clinical benefit.
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