Hydration tracking on GLP-1 — what worked for you?

PharmacoVig_BOS ↑ said:

I spent a month blaming the drug for headaches and light-headedness that turned out to be salt and water, which is embarrassing and apparently common.

Muscle cramps on hydration — anyone else? I was getting severe leg cramps at night, especially calves. Bloodwork showed my both mag and potassium was low.

GLP-1 agonists can cause electrolyte shifts due to reduced food intake and GI effects. Get your electrolytes checked and supplement accordingly. I take magnesium glycinate 400mg + potassium gluconate 99mg daily and cramps are gone.

MikeFit_NJ ↑ said:

Import rules are jurisdiction-specific and this board keeps giving US-shaped answers to non-US questions.

Electrolyte monitoring on hydration — especially important during early titration when GI effects are most pronounced:

• Sodium: 138 mEq/L (normal, but was low at week 2 from vomiting)
• Potassium: 4.2 mEq/L (supplement if below 3.5)
• Magnesium: 1.8 mg/dL (supplementing with glycinate)
• Phosphorus: 3.2 mg/dL (normal)

Low electrolytes cause muscle cramps, heart palpitations, and fatigue — symptoms often blamed on the medication itself. Check your levels before assuming it's a drug side effect.

A narrower follow-up, since the general answer is now clear:

Which of the variables in a cross-border order actually determine the outcome, and which are superstition?

OP back with an update, since a thread like this is useless without one.

Update: the thing I was blaming turned out not to be the cause. Leaving the original post as written rather than editing it, so the mistake stays visible for whoever searches this next.