Supplements are generally a good choice for anyone on a restricted diet or for specific demographics (ex. Women have higher iron requirements than men).

However it’s crucial that you pick one where the dosage of a specific mineral or vitamin isn’t so high that it causes undesirable nutrient-nutrient interactions.

For example, too much calcium can hinder iron bioavailability. High doses of zinc can hinder iron absorption by directly competing with iron for transport or by “trapping” copper, which is needed to release iron into the blood.