The most commonly reported flu-like manifestations include: Nausea and general malaise the most frequent side effect, with incidence varying by product and dose (ranging from approximately 15-40% depending on the specific medication and dosage) Fatigue and low energy levels often described as feeling generally unwell or 'run down' Headaches ranging from mild to moderate intensity Dizziness or light-headedness particularly when standing up quickly, which may reflect dehydration or, in patients also taking insulin or sulfonylureas, possible hypoglycaemia Loss of appetite which, whilst therapeutically beneficial, can contribute to feeling unwell Mild gastrointestinal upset including occasional vomiting or abdominal discomfort These symptoms typically emerge because GLP-1 medications significantly alter gastrointestinal function and metabolic processes
While this might seem empowering, a recent investigation revealed a disturbing lack of comprehensive care
Recommended intake On training days, take 6 capsules about 30 minutes before training with plenty of water
One more thing worth noting: per the March 3, 2026 FDA press announcement (FDA.gov press announcement, March 3, 2026), the agency targeted companies that made claims implying sameness with FDA-approved products or that obscured the compounded nature of medications
They stimulate the GH axis through different upstream receptors
Protocol Wipe the tops of both the retatrutide vial and BAC water vial with an alcohol wipe