GLP-1 side effects have users turning to supplements. Why doctors are worried

For 42-year-old Allison Vecchio, GLP-1 drugs were “a reset button on life”, but came at a price – with side effects like gastrointestinal distress, brittle nails and feelings of weakness so intense that at times she could not leave her bed. But Vecchio, an emergency room nurse based in Fort Pierce, in the US state of Florida, says the symptoms eased when she began a cocktail of supplements that included fibre, collagen and electrolytes, a haul that costs US$200 to US$300 a month. “You really...