Ultimate Nutrition Prostar Whey Protein Powder - Low Carb Protein Shake with BCAAs, Whey Protein Isolate & Concentrate Blend, 25g Protein per Serving, Keto Friendly, 1lb Vanilla Crème - Perfect for Post-Workout Recovery & Muscle Building

So far so good with this whey protein. The price is decent, but even more importantly for my purposes, they have plain--unflavored, unsweetened. I don't want any artificial sweeteners and flavors, and while I can't say that the taste is actually good, I don't find the natural taste of whey protein overly objectionable. I add a little malted milk to help flavor it to my liking. Just as important for me regarding this brand is the source: I wanted to know where they get their raw ingredient from. I don't want any nasty antibiotics or hormones such as, apparently, can be found in dairy products and derivatives from certain countries where those substances are poorly regulated or even unregulated. So I wrote to the manufacturer, asking where their raw product comes from. The response was very prompt, as follows: "The origin of Ultimate Nutrition's Milk protein products (and derivatives such as whey protein) as per our suppliers is The United States of America, New Zealand and Australia." That's encouraging, though it does hinge on whether the suppliers can be taken at their word. Those countries, on further checking, all have fairly stringent regulations on these undesirable substances. Anyway, it was enough confirmation for me to buy and try it. Barring some laboratory tests that either confirm or refute what the suppliers have said, what else do we have to go on? If their suppliers turn out to be truthful as to the origin of the raw product, I would probably upgrade this rating to 5 stars. If the suppliers were to turn out to be lying and are actually getting the raw product from countries where the use of hormones, antibiotics, and other nasties is poorly regulated, I would downgrade this rating to at least a 3. For now, I'm acting as a sort of guinea pig: if I start growing breasts or some of the bacteria that use me as their host start to develop immunity to antibiotics, I'll know the suppliers were lying.