According to three new studies, multivitamins don’t work against heart disease, cancer, early death, or declining cognitive ability. This just adds to the evidence that multivitamins do little more than give you expensive pee.

“Enough is enough,” declares an editorial accompanying the studies in Annals of Internal Medicine. “Stop wasting money on vitamin and mineral supplements.”

Why? Because most people get enough vitamins through the foods that they eat.

Better nutrition and vitamin-fortified foods have made these problems pretty much history.

Now when public health officials talk about vitamin deficiencies and health, they’re talking about specific populations and specific vitamins. Young women tend to be low on iodine, which is key for brain development in a fetus, according to a 2012 report from the Centers for Disease Control and Prevention. And Mexican-American women and young children are more likely to be iron deficient. But even in that group, we’re talking about 11 percent of the children, and 13 percent of the women.

So, unless your doctor (doctor, not woo-practitioner) prescribes a vitamin for a specific deficiency, quit wasting your money.