Supplement Interactions
6 articles on supplement interactions.
Levothyroxine and Supplements: What to Avoid and When to Take Everything Else
Calcium, iron, and magnesium can each reduce levothyroxine absorption if taken too close together. Take levothyroxine…
What Supplements Should You Take on Ozempic? A Practical 2026 Guide
GLP-1 medications like Ozempic reduce appetite, which means you take in less protein and fewer vitamins alongside the…
Can You Take Magnesium and Vitamin D Together?
Yes, magnesium and vitamin D work better together than either does alone. Magnesium activates the enzymes that convert…
Does Metformin Deplete B12? What the Research Says
Yes, taking metformin for a long stretch is linked to lower B12 in a meaningful share of people, because it interferes…
Supplement and Medication Interactions You Should Know About
Some supplements can make common medications weaker or riskier. St. John's Wort speeds up liver enzymes and can weaken…
Supplements You Shouldn't Take Together (and Why)
Calcium and iron compete for the same absorption pathway, so separate them by at least two hours. High-dose zinc taken…