Optimum Nutrition Gold Standard 100% Micellar Casein Protein Powder, Slow Digesting, Helps Keep You Full, Overnight Muscle Recovery, Chocolate Supreme, 4 Pound (Packaging May Vary)

Customers find the protein powder has a good taste and is reasonably priced. They say it’s a worthwhile purchase that balances quality with affordability. The casein protein is slow-digesting, keeping them full for a long time. Many customers find it effective for muscle growth and filling. However, opinions differ on its mixability and thickness.