Creatine
Everything we've answered about creatine: dosing, hydration, kidney safety, and interactions with medications.
3 questions in this cluster
Can You Take Creatine While Using a GLP-1 Medication?
Yes — there is no known direct interaction between creatine monohydrate and GLP-1 receptor agonists like semaglutide or tirzepatide. The main practical concern is making sure you eat and hydrate enough while appetite is suppressed, since both low food intake and dehydration can affect how creatine performs and how you feel.
How Much Water Should You Drink Daily When Taking Creatine?
There's no separate 'creatine hydration number' backed by clinical trials — the practical guidance most sports dietitians give is your normal daily fluid target (roughly 2.7–3.7 liters total for most adults) plus an extra 0.5–1 liter on days you train, since creatine increases water retention inside muscle cells.
Does Creatine Cause Kidney Damage in Healthy Adults?
No — in people with normal kidney function, standard creatine doses (3–5g/day) have not been shown to cause kidney damage in studies lasting up to five years. The confusion largely comes from creatine raising blood creatinine levels, which mimics — but is not the same as — reduced kidney function on a standard lab test.