Excessive supplemental zinc (>124 mg/day) can limit magnesium bioavailability.
⚠ High risk
The headline is broadly defensible, but the qualifications matter. Effect sizes vary by population, the strongest claims rest on shorter trials, and credible voices push back on how it's typically framed.
◐PARTIALLYSUPPORTED
⚠
High-risk intervention — consult a physician before acting.Drug-drug interactions, dose-dependence, and screening contraindications apply.
“the other really important factor that can limit the bioavailability of magnesium is excessive supplemental Zinc at doses higher than 124 milligrams a day which is quite High um that's well above the RDA and people should not be taking that much zinc on a daily basis because it can also inhibit the absorption of”