Tag: medications
-
High doses can do more harm than good
More isn’t always better. From vitamins to painkillers to caffeine, high doses often produce diminishing or reversed returns. Here’s what the dose-response data shows.
-
Some Supplements Interfere With Medications
Common supplements like St. John’s wort, vitamin K, and grapefruit-derived extracts can dangerously alter prescription drug levels. Always tell your doctor what you take.