In the 1990s, I heard yoga teacher Nischala Joy Devi say: “Yoga is very popular these days, but what is popular isn’t yoga.” This really struck me back then, and now it seems the same can be said of Ayurveda. Over the past couple of years, Ayurveda’s classic haldi doodh, or Golden Milk (a.k.a. the more trendy “turmeric latte”) has…