Evidence-based articles on supplement safety, interactions, and optimization

St. John's Wort can fail your birth control. Vitamin K reverses blood thinners. These 5 supplement combinations aren't just ineffective, they're dangerous.

Not all magnesium is equal. Learn which form helps sleep (glycinate), which aids digestion (citrate), and why evening timing matters, backed by research.

Calcium blocks iron absorption by up to 85%. Discover why you should never take them together and the exact spacing strategy that maximizes both minerals.

Taking Vitamin D wrong? You might be wasting 70% of your supplement. Learn the best time to take Vitamin D for maximum absorption, and save money doing it.