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As popular as multivitamins are, it’s always a good idea to ask questions and be well informed. whatever you put in your body. Each of us is unique – and there is a lot of different products there – after all.
First of all, know this: “Multis are basically safe,” says Ferira. “There are always exceptions to the irresponsible brand rule, but I’m talking about reputable, high-quality and clean brands.”
However, there are a few things to keep in mind when taking a multivitamin. A big one? In some cases, your multivitamin may interact with certain medications you are taking, according to nutritionist Jessica Cording, RD, CDN, author of The little book of changes in the game. If you are taking medicines to reduce blood clotting, for example, talk to your doctor before taking any supplement that contains vitamin K (or when you significantly change your dietary intake of vitamin K, in that sense), as the vitamin Contributes to blood clotting and thus can counteract blood thinning. *
Studies also show that smokers and ex-smokers may want to avoid large amounts of beta-carotene (a precursor to vitamin A found in plant foods and many supplements). Excess vitamin A can also have a negative effect on pregnant women, but as with most things in the diet, there are some nuances that need to be considered.
Ferira explains, “When we talk about vitamin A toxicity, there are specific retinoic acid metabolites that are actually found in certain medications, not in supplements that are really bad for the baby’s development.” Although this type of vitamin A and science do not apply to supplements, “Great care should be taken by pregnant women to avoid supplements with 10,000 IU (3,000 mcg) or more of pre-formed vitamin A, which is a form of retinol. This “upper limit” does not apply at all to the beta-carotene form of vitamin A. “
One warning about multivitamins, which is super clear, is iron poisoning in young children. Ferira explains: “This concern about accidental pediatric iron overdose is precisely why multivitamins that contain iron include warnings on their labels explicitly calling for this risk and directing the user to keep it out of the reach of children. So to repeat: Keep away from children (who may mistake your multi capsule, tablet, etc. for candy).
A less serious consideration to keep in mind? Some people may experience indigestion after taking a multivitamin, depending on the formula and when they take their supplement. “For some people, including me, taking a multivitamin first thing in the morning – whether on an empty stomach or not – just doesn’t fit our biology,” says Ferira. “A high-quality multivitamin should include a set of macro- and microminerals in its formula, but it’s not uncommon for this mineral load to be too great for the stomach in the morning.”
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