Women are fueling creatine's biggest year in 3 decades, according to Amazon data

  Creatine is not a new product. It’s a commodity ingredient that every supplement brand on earth already sells, and it’s been that way since the early 1990s. This makes what’s happening on Amazon right now genuinely strange: The creatine subcategory is up 90% over the last 12 months. That’s $57.5 million per month, $721