Optimum Nutrition Serious Mass Weight Gainer Protein Powder, Vanilla, 12LB

Amazon reviewers say this Serious Mass vanilla 12 lb bag is valued for helping with weight gain, with many praising the taste and overall value, while others mention mixability issues and mixed feelings about the protein content and calorie load. On Walmart, reviewers also describe it as smooth, creamy, easy to blend, and effective for adding calories, though some complain about packaging or the sweetness/thickness. Reddit users are more split: some say it works well for bulking and they gained noticeable weight, while others dislike the texture, calling it paste-like or hard to drink. Review sites like Garage Gym Reviews and Muscle & Strength echo the same pattern, noting that it can be effective and reasonably priced, but flavor and artificial taste are common drawbacks.

• Amazon reviewers: taste, value, and weight gain benefits are praised; mixability and protein-content opinions vary.
• Walmart reviewers: smooth texture, easy blending, and good calorie support are common positives.
• Reddit users: some report real weight gain, while others complain about thick texture and taste.
• Review blogs: effective bulk-up product, but not universally loved for flavor or ingredients.