Many whey proteins bother my stomach, but not so with Optimum Nutrition 100% Whey Gold Standard Natural Whey, which says something about the quality. It tastes great, isn’t packed full of a bunch of chemicals that you can’t even begin to pronounce, and is easy on the digestion. It’s also naturally sweetened and flavored.
There’s a reason why Optimum Nutrition is one of the most respected brands in the world of supplements. They make high-quality products and don’t try to dazzle you with heaps of BS broscience in their marketing.