Optimum Nutrition Gold Standard Pro Gainer Protein, Double Chocolate, 10 LB

Amazon reviewers say this weight gainer is praised for taste, mixability, and value for money, with several buyers saying it helps with weight gain and works well with milk. Some reviewers also mention that it can taste too sweet for their preference and that the price feels high, though they still feel the quality is worth it. The Review Index and similar review aggregators show a strong overall score, and Walmart/iHerb-style customer feedback also trends positive on flavor and results. ProteinPowder.com describes it as an effective mass gainer with smooth texture and easy digestibility, while Muscle & Strength reviews of the Pro Gainer line similarly highlight good taste, easy mixing, and stomach friendliness. On Reddit/forums, no specific thread was surfaced in the available results, so the strongest signals here come from Amazon-style customer reviews and third-party review sites.

YouTube search results did surface a real review video about this exact product, including a YouTube watch link titled as a review of the Optimum Nutrition Gold Standard Pro Gainer. A second YouTube result was about Optimum Nutrition Gold Standard generally, but it did not clearly focus on this exact Pro Gainer product, so it is not included.