This question is about Nutrition
There are many supplements and vitamins that you should not take together. Here is a list of dangerous vitamin and supplement combinations.
Iron and calcium
Vitamin C and vitamin B12
Potassium, calcium, zinc, and magnesium
Green tea extract and iron
Multivitamin and calcium, zinc, magnesium, or potassium
Vitamins D, E and K
Copper and zinc
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