One of the biggest reasons for the rise in supplement-related health issues comes from viral trends on social media.
Each week seems to bring a new “miracle supplement” — one month it’s potassium, the next it’s zinc, then magnesium or collagen. These trends often spread faster than scientific research can catch up.
The problem, according to physicians, is that online health influencers rarely consider individual health conditions. What’s good for one person can be dangerous for another.
Dr. Nassar warns that supplements should never replace professional guidance:
“Magnesium has benefits, yes — but context matters. Your age, medications, and underlying health conditions all determine whether it’s helpful or harmful.”
That’s especially important for older adults, who often take medications that can interact with supplements in unpredictable ways.
When to Talk to Your Doctor
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Before taking magnesium — or any supplement — doctors recommend asking these simple but crucial questions:
- Do I really need this supplement?
Get tested for deficiencies before assuming you’re low on magnesium. - Could it interact with my medications?
Magnesium can interfere with antibiotics, heart medications, and certain diuretics. - What’s the right dosage for me?
Your doctor can recommend a safe amount based on your health, diet, and age. - Would food sources be safer?
For most people, adding more magnesium-rich foods to their diet is safer and more effective than supplements.
A Simple Rule for Safe Supplement Use
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