Pocotein | 58 followers on LinkedIn. Halo Top for the Japanese market. The best selling protein ice cream in Japan and the most sold ice cream on Amazon! | At Pocotein, our mission is simple: to make ice cream healthier for everyone—kids, families, and health-conscious individuals alike. As the #1 protein ice cream in Japan, we’re transforming a beloved treat into a nutritious option packed with protein to fuel active lifestyles. We’re dedicated to creating healthy snacks without compromising on flavor.