“If you’re not taking supplements or having certain foods in the forms they need to be consumed in, you’re really wasting your time,” says nutrition guru Brooke Alpert, MS, RD, CDN, who represents Nature’s Origin, the GMO-free vitamin and supplement brand. “Bioavailability is very important in a couple of ways,” echoes functional medicine physician Susan Blum, MD. “There are some specific nutrients where it’s much more of an issue than others.” Read their tips to avoid flushing your hard work—and dollars—down the toilet at Well+GoodNYC.