A protein ice cream that sold out in just five hours after its debut is coming back to Amazon. Gelato Protein was created through a collaboration between the fitness YouTube duo Mametama's Training Diary, who have around 700,000 subscribers, protein ice cream brand Pocotein (KULBAY Co., Ltd.), and Hokkaido's long-established ice cream maker Aisu no Ie (Naganuma Aisu Co., Ltd.). It returns to Amazon on August 17 (Mon), 2026.
Built around a "zero guilt" concept, Gelato Protein is a full-bodied gelato that delivers 10g or more of protein, about 4g of fat, and 150 to 162 kcal per cup, all without artificial sweeteners, colorings, vegetable oils, or egg yolk.
Made only from carefully selected ingredients such as Hokkaido milk, milk protein, inulin, beet sugar, and allulose, the gelato earned high marks from tasting event participants, with comments such as "I was surprised it tasted so good for a protein ice cream" and "You wouldn't know it was protein ice cream if you weren't told."
1. Product Overview
| Item | Details |
|---|---|
| Product Name | Gelato Protein |
| Original Launch Date | June 10 (Wed), 2026 |
| Where to Buy | Amazon |
| Contents | Assorted 4-flavor set (Hokkaido Milk, Chocolate, Strawberry, Mango), one of each, 4 pieces total |
| Category | Ice milk (Milk, Chocolate) / Lacto-ice (Strawberry, Mango) |
2. Nutritional Information (Per Cup)
| Flavor | Hokkaido Milk | Chocolate | Strawberry | Mango |
|---|---|---|---|---|
| Calories | 150 kcal | 162 kcal | 156 kcal | 151 kcal |
| Fat | 4.6 g | 5.3 g | 4.3 g | 4.4 g |
3. Product Highlights
Point 1: Despite Being Protein Ice Cream, It Tastes Just as Good as Store-Bought Gelato
Gelato Protein sets out to overcome the dryness and artificial-sweetener aftertaste common in earlier protein ice creams. Made mainly with Hokkaido milk and milk protein, it turns smooth and creamy about four minutes after being taken out of the freezer. Tasting event participants said it tasted "every bit as good as Super Cup or Häagen-Dazs."
Point 2: 10g or More of Protein, About 4g of Fat, 150 to 162 kcal
Compared with regular ice cream, it has about 25% fewer calories, about a third of the fat, and about three times the protein, offering a nutritional balance that can be enjoyed without guilt while dieting or cutting weight.
Point 3: No Artificial Sweeteners, Colorings, Vegetable Oils, or Egg Yolk
The recipe uses only Hokkaido raw milk, milk protein, inulin, beet sugar, allulose, polydextrose, guar gum/xanthan gum, and sea salt, focusing on the natural flavor of carefully chosen ingredients.
Point 4: Supervised by a Fitness YouTuber Duo With 700,000 Followers
Mametama's Training Diary is a fitness YouTube channel watched by viewers ranging from beginners to advanced trainers. Gelato Protein was planned and developed to embody the channel's philosophy of "a fitness lifestyle you can enjoy and keep up without straining yourself."
4. Comments From Tasting Event Participants (Excerpts)
"I can't believe this only has 4g of fat! It's thick and rich, almost like Turkish ice cream. It didn't taste like something you'd eat while dieting!"
"I'm glad I can eat this without guilt even while cutting weight. I expected it to taste like a low-carb diet ice cream, but it was completely different — it just tasted like regular ice cream!"
"You wouldn't know it was protein ice cream if you weren't told. Having 10g of protein and under 5g of fat with this taste felt wonderfully wrong, in a good way."
A Message From Mametama's Training Diary
Gelato Protein is our second product, following Sweets Protein, which we launched in 2024. For more than seven years now, we've used our YouTube channel to spread the message of enjoying meals without stress while still working toward your diet goals.
But the reality is that many people find dieting and eating restrictions difficult. There are plenty of high-protein, low-fat sweets and ice creams on the market, but we've also heard a lot of feedback that they're dry, don't taste good, and are hard to stick with because of it.
That's exactly why we wanted to make something that's genuinely delicious without compromising on nutrition. Working with Aisu no Ie, the No. 1 ice cream maker in Hokkaido by market share, and Pocotein, the No. 1 selling protein ice cream brand on Amazon, we repeated countless rounds of taste testing with these specialists in their respective fields to complete this product.
We hope that more people working hard on their diets or trying to lose weight can keep enjoying sweets without holding back, with a smile on their face. We'd love for Gelato Protein to become part of your everyday life as a "daily treat."
About Mametama's Training Diary
Mametama's Training Diary is a fitness YouTuber duo with around 700,000 subscribers. After graduating from Waseda University's School of Commerce, both members worked at listed companies for three years before founding a company together as co-representatives. Under the theme "a cooler you than yesterday," they share content on strength training, dieting, and lifestyle. Having each lost more than 20kg themselves, they have also led a nutrition coaching program, the SIX-PACK Project, with 270 participants.
- A single home-workout video has surpassed 17.4 million views, with over 210 million total views across the channel
- Both members lost 20kg in just six months
- Their book おはよう、新しい朝、新しい僕、新しい筋肉。 reached No. 1 on Amazon's new releases ranking
- The Mametama brand now operates more than 60 locations nationwide on Uber Eats
- Their SIX-PACK Project nutrition coaching program has surpassed 320 participants
- They have collaborated on a menu with the popular restaurant chain Ootoya
Mame
Tama
YouTube: https://www.youtube.com/@mametama
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