Safety/quality uncertainty can dominate the risk profile depending on sourcing
Standard (Evidence Strength: Grade B) Intravesical instillation of bacillus Calmette-Guerin should not be offered outside of investigational study settings
A fat burner is the better choice if you have already been using L-Carnitine or similar supplements and want to step up the metabolic impact, you are in an advanced cutting phase where every lever matters, you train early in the day and can clear the caffeine before sleep, you do not have underlying cardiovascular conditions, and you have an established caffeine tolerance that allows you to handle higher-stimulant formulas without adverse effects
Avoid keeping these solutions at room temperature, as it can speed up degradation
These medications rarely cause dangerously low blood sugar (hypoglycemia) on their own
When you lose it, your baseline metabolic rate drops, your physical capacity decreases, and daily activities that previously felt easy start feeling harder