Serving sizes and formulas vary, so the protein number alone does not make one cereal the best choice. These six products have brand-published details readers can compare; the available product information does not verify a seventh exact cereal, so this guide avoids padding the list. Check the box for its serving size, nutrition facts, ingredients, and current formulation before buying.
How to compare high-protein cereal
Compare the same measures on the exact flavor and package: protein, fiber, total sugar, calories, and serving size in both grams and household measure. Ingredient bases also differ. Some products list soy ingredients, while Catalina Crunch lists pea protein in its blend. Check the package for allergens and the full ingredient list.
The figures below come from manufacturer product pages retrieved October 7, 2026. Product pages may not match every flavor or package label, and formulations and availability can change. Where the captured product information does not establish a nutrition value, it is left out rather than inferred.
Six high-protein cereals with published product details
Kashi GO Protein & Fiber Cereal Original
Kashi lists 12g protein and 12g fiber per serving. The ingredient list includes soy protein concentrate, whole-grain ingredients, and wheat. Kashi identifies a 12.3-ounce pack. See Kashi GO Original at Kashi.
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- One 9 oz box of Post Premier Protein Chocolate Almond Cereal, Chocolatey Protein Cereal
- High protein cereal is filled with delicious chocolate flavored cereal flakes and contains real sliced almonds
- Crunchy chocolate flavored cereal flakes provide 20 grams of protein per serving for a protein packed breakfast cereal option
- Enjoy this chocolatey breakfast cereal in the morning or grab a handful when you need a quick protein pick me up to curb late night cravings
- Create a protein packed trail mix using these chocolate flavored protein cereal flakes mixed with nuts and raisins
Kashi GO Protein & Fiber Cereal Chocolate Crunch
Kashi lists 10g protein and 10g fiber per serving. Its ingredients include soy flakes and whole-grain oats; the product page describes the cereal as containing whole grains and Fair-Trade chocolate. See Kashi GO Chocolate Crunch at Kashi.
Kashi GO Protein & Fiber Cereal Cinnamon Crunch
Kashi lists 10g protein and 10g fiber per serving. The ingredient list includes soy flakes, whole grains, and chicory root fiber. The product page identifies a 17.4-ounce package and Amazon among its retailers. See Kashi GO Cinnamon Crunch at Kashi.
Rank #2
- 11G OF PROTEIN PER 1/2 CUP SERVING: Kick off your morning, workout or office break with a high protein blast without compromising taste! 11 grams of clean protein offer vital fuel for your body and mind while our craveable flavors satisfy.
- EXCELLENT SOURCE OF FIBER: Packed with 6 grams of fiber per 1/2 cup serving, which helps regulate and support core bodily functions such as glucose absorption and digestive health.
- WHOLESOME INGREDIENTS AND GLUTEN FREE: Catalina Crunch Cereal is not just tasty, it’s also gluten free, sugar free, Non-GMO Project Verified and Kosher.
- SWEET CINNAMON CRUNCH DELIGHT: A nostalgic cinnamon toast flavor, perfectly guilt free. Premium ingredients sweetened with stevia and monk fruit make for a healthier breakfast food or afternoon snack than other sugary alternatives.
- YOUR ANYTIME SNACK HERO: What you snack on matters. Catalina Crunch brings bold flavor, big crunch, and steady fuel from more protein and fiber while keeping sugar low. A satisfying, energizing snack for any handful, bite, or bowl.
Premier Protein cereal
Premier Protein’s product page lists 20g protein, 5g sugar, 14g total carbohydrate, and 180 calories per serving. It shows Mixed Berry Almond and Chocolate Almond variants. The captured page does not establish that those figures apply to every flavor or package, so verify the box you are considering. See Premier Protein cereal.
Special K Protein Cereal
The U.S. product page identifies whole-grain wheat, rice, and soy protein isolate, and lists 12.9-ounce and 17.5-ounce sizes. The captured information does not establish a current protein figure per serving; use the SmartLabel or the exact package label for that number and the rest of the nutrition facts. See Special K Protein Cereal.
Rank #3
- MACROS: Hitting your macros doesn't have to be hard; GHOST PROTEIN CEREAL x CINNAMON TOAST CRUNCH has 17G protein per serving and offers a good source of calcium… 'Nuff said. Get the delicious protein boost you crave without sacrificing your macros
- NOSTALGIC FLAVOR: Nostalgia is paramount to everything we do at GHOST. Each serving of this high protein cereal has a good source of calcium AND the CINNAMON TOAST CRUNCH flavor is sure to take you back
- VERSATILE: Crush your day by having a bowl (or handful) of GHOST PROTEIN CEREAL whenever, wherever. From breakfast to your favorite go-to snack before hitting the field, gym, or office, we got you
- BE SEEN: GHOST is powering and empowering users to BE SEEN; The name GHOST and mantra 'BE SEEN' come from that feeling of being behind the scenes and wanting to be heard, wanting to make an impact; WE'RE ALL GHOSTS, THIS IS OUR TIME
- CONTAINS: One cardboard box of GHOST PROTEIN CEREAL x CINNAMON TOAST CRUNCH, 17G protein per serving, 9.2 oz; Perfect for instant snacking, or including as part of breakfast and meals
Catalina Crunch Cinnamon Toast
Catalina Crunch presents two serving formats: a snack serving of 1/2 cup (36g), with 6g fiber, and a bowl serving of 3/4 cup (54g), with 9g fiber. The displayed nutrition panel lists zero total sugars, and the ingredient blend includes pea protein. The captured page does not establish a protein or calorie figure to quote here; check the current box. See Catalina Crunch Cinnamon Toast.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the product figures can—and cannot—tell you
These manufacturer-published figures make it possible to identify products with stated protein or fiber amounts, but they are not an independent nutrition study or a head-to-head test. A larger serving can change the apparent comparison, and the available details do not establish a taste, price, or value winner. Choose based on the label, ingredients, flavor, and package that suit your preferences.
Rank #4
- 10g Fiber, 10g Protein & 100% Taste: Level up your day with the delicious taste of Kashi GO Peanut Butter Crunch, with 10g of fiber and 10g of protein (13% DV) per serving.
- Peanut Butter Crunch: Enjoy peanut butter goodness combined with crispy, crunchy clusters made with a four-grain blend and 11g of whole grains per serving.
- Nutrition Meets Delicious Crunch: An excellent source of fiber and a good source of protein, with 10g of fiber and 10g of protein per serving (contains 10g total fat per serving). Kosher Dairy; contains soy, peanut, and wheat ingredients.
- Irresistible Real Peanut Butter Flavor: Enjoy the delicious taste of clusters made with whole grains, tossed with rich, real peanut butter for a delightful start
- Purposeful Ingredients for Active Lifestyles: Enjoy a 16.9ox box of Kashi Go Peanut Butter Crunch cereal. A vegan, Non-GMO cereal crafted with thoughtful, plant-based ingredients with no artificial colors or flavors, to support your well-being
For a specific box, the package label is the most relevant check: recipes, serving sizes, and retail availability can change. Review the ingredients for allergens, especially if soy, wheat, or other listed ingredients matter to you.
Quick Recap
Best Value
- CRUNCHY CLUSTERS: The taste of sweet honey and the goodness of whole grain oats in deliciously crunchy granola clusters
- PROTEIN GRANOLA: Each 2/3 cup serving provides 13g protein, and energy from 33g whole grain (at least 48g recommended daily), plus a good source of fiber (7g of total fat per 2/3 cup serving)
- WHOLESOME INGREDIENTS: Granola that contains no artificial flavors or colors, and no high fructose corn syrup, for the quality you'd expect from Nature Valley snacks
- PART OF BREAKFAST OR SNACK: Enjoy as a crunchy topping over a yogurt parfait or in an acai bowl, pour a bowl with milk for a breakfast addition, or take along for on the go snacks; An ideal pantry staple
- CONTAINS: One plastic pouch of crunchy Nature Valley Protein Oats and Honey Granola, Family Size, 17 oz; Perfect for instant snacking, or a part of breakfast and meals
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
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