Isopure Zero Carb Protein Powder, 100% Whey Protein Isolate,

Tastes good for protein powder.

Been using this powder to make a morning shake with fruit and veggie mix, some PBfit, and some chia seeds. This powder tastes awesome like that and adds a great vanilla flavor to it. The macros on it, with the wild amounts of vitamins, are also pretty impressive. Low-carb, lower-calorie, very high in protein, and very high in nutrients. Can't speak to the clumping in an actual protein shake, but no clumping at all in my protein smoothies. I tend to be pretty picky with taste and texture from protein powders too, but no complaints here.

I’ve been using Isopure Zero Carb Whey Isolate Protein Powder (Vanilla flavor) for my keto and PSMF (protein-sparing modified fast) diet, and I’m impressed with it overall! The vanilla flavor is mild and not overpowering, which makes it easy to incorporate into various shakes or recipes. I love that it’s zero-carb, lactose-free, and gluten-free perfect for anyone on a strict low-carb or high-protein diet. The 25g of protein per serving is great for muscle recovery, and it’s packed with vitamins, making it a solid choice for anyone looking to support their fitness goals while keeping carbs to a minimum. It also mixes well and has a smooth texture, which is a huge plus when you’re drinking it daily. The only minor issue I’ve noticed is that towards the end of the shake, the taste becomes slightly salty if you don’t continue stirring or shaking as you drink. It’s not a dealbreaker, but something to be aware of. If you keep mixing it well, though, this isn’t much of a problem. Overall, I’d recommend this protein powder, especially if you’re following a keto or PSMF plan. The protein quality and minimal carbs make it a top choice in my routine!

Isopure Zero Carb Whey Isolate has been a solid protein option for me. I like that it’s lactose free and gluten free, which makes it much easier on my stomach compared to other protein powders. It mixes smoothly with water or almond milk and doesn’t leave a gritty texture. The protein content is high without added sugar or carbs, which is a big plus. It’s also convenient that it includes added vitamins, so it feels like more than just a protein supplement. The flavor is clean and not overly sweet, though some flavors are better than others. The only downside is the priceit, ’s a bit more expensive than standard whey and the taste can be slightly thin since it’s an isolate. Overall, it’s a great option if you want a clean, easy-to-digest protein without extra fillers.

I’ve been using Isopure Zero Carb Whey Isolate as part of my nutrition plan, and it delivers exactly what it promises. The big highlight is getting high-quality protein with absolutely no carbs, which makes it perfect for anyone on a low-carb or keto lifestyle. It mixes easily, and I appreciate that it doesn’t leave me with that heavy, chalky feeling that some protein powders do. The flavor is decent and gets the job done, but it’s not the most exciting—definitely more functional than indulgent. That said, I like the clean ingredient profile and how versatile it is for shakes or adding into recipes. For pure, no-nonsense protein that supports lean muscle without extra carbs, this is a solid choice.

First 2 bags were great. During cooler months when I was too cold to make a smoothie using frozen fruit (which makes it like a slush), I put it my morning coffee. It dissolved and mixed in instantly & vanilla flavor gave coffee a richer taste. However this last bag has been a challenge, possibly making it the last one I buy. It doesn't dissolve at all unless I vigorously stir for several minutes; even then, doesn't completely dissolve. I wind up using a cocktail immersion blender. Having to do so makes it a chore instead of a snap; also it tends to clogs up blender coils so have to spend more time removing stuck goo. Don't know if it is a fluke or if the formula has been changed or inferior ingredients used. There are generous rules for manufacturers where they don't have to call attention to or inform you of minor changes which IMO makes us victims of sort. I'm on a fixed income so will have to think about whether I want to toss this company more of my hard earned $. Am curious to know if anyone else has had this problem. I spent a fair amount of time researching protein powders that have a clean formula without sugar & low sodium & carbs & had a tolerable taste/texture; it's a tall order & takes a lot of time. Such is why I was initially so happy with this item as it checked all the boxes. Update: This update is way late but bear with me. The company sent me a generous replacement as a result of above review. That batch was perfect, no problems, so have no clue why the jar I bought on Amazon wouldn't dissolve. Have bought only 1 bag since then, a chocolate, and haven't opened yet. Update: 8/30/25. Have not bought any more of this product but planned to do so today but decided to check the "critical" reviews first. Glad I did. Only got through first few, all recent within last couple of months, all mentioning apparent change in formula that no one seemed to like. Thank you to fellow reviewers, you saved me $. I won't be buying this brand any longer. Have never ever found a change in formula to any product (whether for people or animals) to improve anything other than manufacturer's bottom line and always stop buying that product even before trying "new and improved". Am also a voracious label reader which turns me away from most products.