7 Worst Supplement Combinations You Should Never Take Together

Not all supplements work well together! Some combinations can reduce absorption, cause side effects, or even be harmful.  Learn which supplement combos to avoid for better health and safety.

Calcium & Iron

Calcium blocks iron absorption, making it harder for your body to get enough iron. If you take both, space them a few hours apart for better results.

Magnesium & Calcium

These minerals compete for absorption, reducing effectiveness. Taking them separately at different times of the day ensures better absorption.

Zinc & Copper

High doses of zinc can block copper absorption, leading to a deficiency. If taking both, look for a balanced supplement to maintain proper levels.

Iron & Green Tea

Green tea contains compounds that can reduce iron absorption by up to 60%. Avoid drinking green tea when taking iron supplements.

Fish Oil & Ginkgo Biloba

Both thin the blood, increasing the risk of bleeding or bruising. Be cautious, especially if you take blood thinners.

Vitamin C & B12

Vitamin C can break down vitamin B12, making it less effective. If taking both, separate them by at least two hours.

Iron & Coffee

Caffeine in coffee can block iron absorption, reducing its effectiveness. If you need iron, wait at least an hour before drinking coffee.

Taking the right supplements together can boost your health, but the wrong combinations can reduce benefits or cause harm.  Consult a doctor before starting any supplement routine!