Vanadyl sulfate is a vanadium compound sometimes used to mimic insulin’s effects, potentially improving glucose metabolism and muscle glycogen storage. Some athletes use it for “pumps” and endurance, though evidence is limited.
Preliminary studies suggest benefits for insulin sensitivity, but its athletic performance effects remain unproven. High doses (>10 mg/day) may cause GI distress or kidney strain.
Synonyms: Vanadium, Vanadyl
Benefits:
✔ May support glucose uptake
✔ Potential muscle pump enhancement
✔ Could aid insulin-resistant individuals
Sources: Shellfish, mushrooms, supplements.
Notes: Not a proven performance enhancer; use with caution.