18 High Calorie Protein Bars for Max Muscle Gains

Discover the best high calorie protein bars to fuel your gains with delicious, nutrient-packed options curated for quick, convenient energy boosts
BrandMy RatingPrice
Nature Valley
Top Economical Pick
9.2/10
Musashi
Best for Muscle Gains
8.0/10
Met-Rx
Best for On-the-Go Fuel
9.2/10
Gatorade
Best for Post-Workout Recovery
9.0/10
Clif Kid Zbar
9.2/10

Best High Calorie Protein Bars

Looking to pack a punch with your snack? Dive into our curated list of the best high-calorie protein bars, specially designed for those who crave a rich, satisfying boost without the fuss. Whether you're fueling intense workouts or need a quick, delicious way to meet your goals, these options deliver power-packed calories in every bite.

Top Economical Pick: Nature Valley Protein Granola Bars

Nature Valley Protein Granola Bars, Snack Variety Pack, Chewy Bars, 15 ct, 21.3 OZ
Highlights
High protein content
Great for on-the-go
Delicious flavor variety

Nature Valley Protein Granola Bars are our top economical pick for those seeking a high-calorie, convenient snack.

With 10 grams of protein per bar and a variety pack of 15, you get a solid balance of flavor and value.

The bars are chewy, satisfying, and come in flavors like Peanut Butter Dark Chocolate and Salted Caramel Nut that blast through cravings.

Plus, their portability makes them perfect for busy days, whether at work, on a hike, or in your lunchbox.

While they do contain added sugars and some artificial ingredients, their affordability makes them a convenient, tasty solution for on-the-go protein needs.

Be sure to also check out the best 100 calorie protein bars for more options! Also, here is the price history so you know exactly when to buy!

Price history for Nature Valley Protein Granola Bars on Amazon

Best for Muscle Gains: MUSASHI High Protein Bar

MUSASHI High Protein Bar, 45g Protein, 2g Total Sugars, Milk Chocolate Brownie, Post Workout and Protein Snack On The Go, 12 Pack of 3.2oz (90g) Bars
Highlights
High protein content
Great for muscle recovery
Excellent macros

The MUSASHI High Protein Bar delivers an industry-leading 45g of protein per bar, making it a powerhouse for muscle gains.

Crafted with scientific precision and athlete approval, it boasts premium ingredients sourced from New Zealand, including high-quality whey protein isolate and naturally occurring BCAAs in a perfect 2:1:1 ratio.

While the texture leans toward gritty and chewy, the macros more than compensate for it, especially if you're focused on maximizing muscle recovery.

Overall, this bar is a top-tier choice for serious fitness enthusiasts seeking optimal protein intake after workouts.

Be sure to also check out the best nut-free protein bars for more options! Also, here is the price history so you know exactly when to buy!

Price history for MUSASHI High Protein Bar on Amazon

Best for On-the-Go Fuel: MET-Rx Big 100

MET-Rx Big 100 Colossal Protein Bars, Great as Healthy Meal Replacement, Snack, and Help Support Energy, Peanut Butter Pretzel, With Vitamin A, Vitamin C, and Zinc, 100 g, (Pack of 9)
Highlights
High protein content
Tasty flavor options
Fills you up quickly

The MET-Rx Big 100 Colossal Protein Bars are ideal for quick, on-the-go fuel.

With a whopping 30 grams of protein per bar, they really pack a punch, making them perfect as a meal replacement or post-workout boost.

The Peanut Butter Pretzel flavor hits just the right balance of sweet and savory, and the inclusion of 18 essential vitamins and minerals ensures you're nourishing your body even during busy days.

While they can be a bit dry and calorie-dense, their satisfying texture and strong nutrient profile make them a top contender for active lifestyles that demand convenience, flavor, and nutrition.

Be sure to also check out the best taste protein bar for more options! Also, here is the price history so you know exactly when to buy!

Price history for MET-Rx Big 100 on Amazon

Best for Post-Workout Recovery: Gatorade

Gatorade Whey Protein Recover Bars, Chocolate Chip, 2.8 ounce(Pack of 12)
Highlights
High-quality whey protein
Great flavor variety
Good for muscle recovery

The Gatorade Whey Protein Recover Bars are perfect for post-workout recovery, delivering 20 grams of high-quality whey and milk proteins to help rebuild muscles efficiently.

With 42 grams of carbs per bar, they replenish energy levels quickly, preparing you for the next session.

The rich chocolate chip flavor is a treat, making recovery feel like a reward rather than a chore.

While the texture can be a bit dry and the carbs are quite high, these bars are a reliable choice for athletes who need a quick, effective refuel.

Be sure to also check out the best gluten free protein bars for more options! Also, here is the price history so you know exactly when to buy!

Price history for Gatorade on Amazon

Clif Kid Zbar

CLIF Kid Zbar - Chocolate Brownie - Soft Baked Whole Grain Snack Bars - USDA Organic - Non-GMO - Plant-Based - 1.27 oz. (18 Pack)
Highlights
Delicious chocolate flavor
Organic & Non-GMO
Kid-friendly & tasty

Zbar offers a delicious chocolate flavor that kids and parents both love, making snack time easy and enjoyable.

It's made from organic, non-GMO ingredients and is free from artificial flavors and preservatives, so you can feel good about giving it to your little energetic explorers.

The soft, chewy texture combined with whole grains and fiber provides satisfying nourishment and sustained energy.

While it’s not the highest-calorie option out there, its kid-friendly profile and convenient format make it a solid choice for a nutritious, on-the-go snack.

Be sure to also check out the best non chocolate protein bars for more options! Also, here is the price history so you know exactly when to buy!

Price history for Clif Kid Zbar on Amazon

Prima Ancestral Protein Bars

PRIMA Grass Fed Protein Bars, 7 Pack – Animal-Based Protein Bar with Beef Tallow, Raw Honey, Seed Oil Free, Low Carb, Gluten-Free – Healthy, Energy Snacks for Clean Lifestyle (7 Pack, Variety Pack)
Highlights
High-quality ingredients
Rich in healthy fats
Natural flavor options

… These bars harness the power of grass-fed bovine collagen and New Zealand whey, making them a solid choice for muscle recovery and overall health.

The subtle coffee infusion adds a natural energy boost, perfect for mornings or pre-workouts.

Plus, the inclusion of grass-fed beef tallow delivers sustained energy through healthy fats, ideal for low-carb fans.

While they boast clean ingredients with organic honey and no artificial additives, some might find the flavor a bit muted, and the texture can vary.

Overall, a convenient, nutritious snack that packs a punch when you need it.

Be sure to also check out the best weight watchers protein bars for more options! Also, here is the price history so you know exactly when to buy!

Price history for Prima Ancestral Protein Bars on Amazon

MET-Rx Protein Plus Bar High Calorie Protein Bars

MET-Rx Protein Plus Bar, Great as Healthy Meal Replacement, Snack, and Help Support Energy, Gluten Free, Peanut Butter Cup, With Vitamin A, Vitamin C, and Zinc to Support Immune Health, 85 g,9 Count
Highlights
High Protein Content
Good for Meal Replacement
Filling and Satisfying

The MET-Rx Peanut Butter Cup Bar delivers a hefty dose of high-quality protein, perfect for fueling your workouts or as a satisfying meal replacement.

It’s quite filling, helping you stay energized and curb hunger longer.

While it’s not overly sweet and might taste a bit more chemically than some prefer, the robust flavor of peanut butter and chocolate combo still hits the spot.

Keep in mind, it’s on the pricier side, but for athletes or busy folks needing reliable nutrition in a pinch, it’s a smart choice.

Overall, a solid, performance-driven snack to keep you powered up.

Be sure to also check out the best low sodium protein bars for more options! Also, here is the price history so you know exactly when to buy!

Price history for MET-Rx Protein Plus Bar on Amazon

Clif Builder's

CLIF Builders - Chocolate Peanut Butter Flavor - Plant Based Protein Bars - Gluten Free - Non-GMO - Low Glycemic - 20g Protein - 2.4 oz. (12 Pack)
Highlights
Great taste
Provides energy boost
High-quality ingredients

The high-quality ingredients shine through with each bite—gluten-free, non-GMO, and crafted with sustainably sourced components like Rainforest Alliance certified cocoa.

The Chocolate Peanut Butter flavor hits the perfect balance of rich chocolate and creamy peanut butter, with a satisfying crunch that keeps things interesting.

Packed with 20g of complete protein plus extra carbs, these bars are a reliable energy booster for tough workouts and recovery.

While they do have a slightly higher carbohydrate content and some flavors can crumble, overall, they deliver great taste and functional fuel in one sustainable package.

Be sure to also check out the best deal on protein bars for more options! Also, here is the price history so you know exactly when to buy!

Price history for Clif Builder's on Amazon

Pure Protein Bars

Pure Protein Bars, High Protein, Nutritious Snacks to Support Energy, Low Sugar, Gluten Free, Chocolate Peanut Butter, 1.76oz, 12 Count (Packaging May Vary)
Highlights
High protein content
Great for workouts
Delicious flavor

The Pure Protein Chocolate Peanut Butter Bar delivers a satisfying burst of flavor with 20g of high-quality protein, making it a great choice to fuel your workouts or satisfy cravings on the go.

The chocolate and peanut butter combo hits the sweet spot, even if the peanut butter flavor isn't overwhelming.

It's gluten-free and supports muscle recovery, but keep in mind it might not be super filling or gentle on sensitive stomachs.

Overall, a tasty, convenient snack that balances quality and taste for your active lifestyle.

Be sure to also check out the best electric protein shaker for more options! Also, here is the price history so you know exactly when to buy!

Price history for Pure Protein Bars on Amazon

RXBAR Nut Butters and Oat Bars High Calorie Protein Bars

RXBAR Nut Butter and Oat Protein Bars, Protein Snacks, Snack Bars, Dark Chocolate Peanut Butter, 23.2oz Box (12 Bars)
Highlights
Simple, natural ingredients
Great for on-the-go
Delicious flavor

These bars feature a simple, natural ingredient list—oats, honey, peanuts, egg whites, and dark chocolate—making them a wholesome choice for any time of day.

The soft yet crispy texture offers a satisfying bite, complemented by creamy nut butter and rich dark chocolate for added flavor.

Each bar packs 10g of protein, decent but not overwhelming, perfect for a quick snack rather than a meal replacement.

The gluten-free, kosher pareve certification adds peace of mind, and their portability makes them a go-to for busy days.

Just note, the protein content may leave some craving more, and the texture can vary from batch to batch.

Overall, a tasty, convenient option with clean ingredients that we recommend for those seeking a flavorful, on-the-go boost.

Be sure to also check out the best selling protein bar for more options! Also, here is the price history so you know exactly when to buy!

Price history for RXBAR Nut Butters and Oat Bars on Amazon

TruBar

TRUBAR Vegan Protein Bar, Oh Oh Cookie Dough, Gluten Free, Plant Based, High Fiber, Dairy Free, Low Fat, Non GMO, No Sugar Alcohols, 12G Lean Protein, 13G Fiber, Healthy Snack Bars, 12 CT
Highlights
Healthy, simple ingredients
Delicious taste options
High protein & fiber

The Oh-Oh Cookie Dough Protein Bar offers a guilt-free indulgence that feels like a treat, thanks to its rich, cookie dough-inspired flavor blended with chocolate.

While the texture can be a bit dry, its simple, real ingredients—think cashews, pea protein, and cassava—make it a satisfying, nourishing choice.

With 12g of plant-based protein and fiber, it supports your workout recovery or midday cravings without any mess of artificial flavors or allergens.

Perfect for anyone seeking a healthy, tasty snack that fuels their day with clean ingredients.

Be sure to also check out the best plant based protein bars for more options! Also, here is the price history so you know exactly when to buy!

Price history for TruBar on Amazon

MOSH Protein Bars

MOSH Variety Pack Keto Protein Bars, High Fiber, Low Carb, Gluten Free, High Protein, Brain Healthy Snack with Ashwagandha, Lion's Mane, 6 Count
Highlights
Brain-boosting ingredients
Variety of flavors
Keto-friendly and healthy

MOSH's high-calorie protein bars pack a punch with brain-boosting ingredients like lion’s mane, omega-3s, and Cognizin, making them a smart choice for mental clarity and focus.

The variety pack means you can enjoy six mouthwatering flavors—perfect for keeping snacks exciting.

Plus, they're keto-friendly, gluten-free, and made with clean-label ingredients, aligning with health-conscious lifestyles.

While the flavor options are limited and the packaging small, these bars deliver on nutrition and convenience, making them an excellent quick and nourishing snack for busy days.

Be sure to also check out the best low fodmap protein bars for more options! Also, here is the price history so you know exactly when to buy!

Price history for MOSH Protein Bars on Amazon

Quest Nutrition Bars High Calorie Protein Bars

Quest Nutrition Ultimate Variety Pack Protein Bars, High Protein, Low Carb, Gluten Free, Keto Friendly, 12 Count
Highlights
Great flavor variety
High protein content
Low sugar and carbs

The Quest Ultimate Protein Bars Variety Pack offers a fantastic mix of flavors that keep snacking exciting without sacrificing quality.

Each bar is packed with 20-21 grams of high-quality dairy protein, making it an excellent choice for muscle support and recovery.

Plus, with only 4-5 grams of net carbs and minimal sugar, it’s perfect for those watching their intake.

While a few flavors may come across a bit dry or contain artificial sweeteners, the overall taste and convenience make it a top contender for busy days on the go.

Be sure to also check out the best sugar-free protein powder for more options! Also, here is the price history so you know exactly when to buy!

Price history for Quest Nutrition Bars on Amazon

Clif Bar

CLIF BAR - Chocolate Chip - Made with Organic Oats - Energy Bars - Non-GMO - Plant Based Protein Bars (15 Pack)
Highlights
High calorie density
Good for on-the-go
Reliable energy boost

The Classic Chocolate Chip flavor hits the spot with sustainably sourced chocolate, giving it that comforting, indulgent taste we crave.

With 10g of plant-based protein, organic oats, and no high fructose corn syrup, it offers good-for-you ingredients that support sustained energy, perfect for long activities.

Its high calorie density makes it a reliable on-the-go snack, whether you're hiking or powering through a gym session.

While it’s not a meal replacement and does contain some sugar, its convenience and satisfying flavor make it a solid go-to for active days.

Be sure to also check out the best cinnamon protein powder for more options! Also, here is the price history so you know exactly when to buy!

Price history for Clif Bar on Amazon

ONE Protein Bars

ONE Protein Bars, Reese's Peanut Butter Lovers, Gluten Free with 18g Protein and 3g Sugar, Pantry Staples, 2.12 oz (12 Count)
Highlights
High protein content
Great sweet, peanut flavor
Gluten free option

These Reese’s-inspired protein bars deliver a sweet, nostalgic peanut butter flavor that hits just the right spot—perfect for satisfying cravings while fueling your day.

With 18 grams of protein and only 3 grams of sugar, they strike a nice balance for those looking to manage their intake without sacrificing taste.

The gluten-free option makes it appealing to a broad audience, and their convenient 2.12-ounce size makes them ideal for on-the-go snacking at home, the gym, or during outdoor adventures.

While the flavor isn’t exact to the classic Reese’s, the rich, nutty taste still makes these a fun, satisfying choice.

Be sure to also check out the best high-protein vegan cookbook for more options! Also, here is the price history so you know exactly when to buy!

Price history for ONE Protein Bars on Amazon

think! Protein Bars High Calorie Protein Bars

think! Protein Bars, High Protein Snacks, Gluten Free, Kosher Friendly, Brownie Crunch, Nutrition Bars, 2.1 Oz per Bar, 12 Count (Packaging May Vary)
Highlights
High protein content
No added sugar
Great taste (peanut butter)

With 20 grams of protein per bar, it’s a powerhouse snack perfect for those seeking a quick energy boost or a meal replacement.

We love that it contains 0 grams of sugar and omits all artificial sweeteners, making it a low GI option ideal for clean eating.

The peanut butter flavor delivers great taste, and the inclusion of 12 brownie crunch bars makes it a satisfying treat.

However, the texture can be a bit unpleasant for some, and the flavor choices are limited.

For those prioritizing high protein and natural ingredients, this is a solid pick.

Be sure to also check out the best non dairy protein shakes for more options! Also, here is the price history so you know exactly when to buy!

Price history for think! Protein Bars on Amazon

Snickers

SNICKERS Peanut & Caramel Hi Protein Bar, 24.12 oz, 12 ct Box
Highlights
Great taste for a protein bar
High protein content (20g)
No artificial flavors/colors

The Snickers High Protein Bar delivers a bit of indulgence without the guilt.

The rich combination of peanuts, caramel, and chocolate coating makes it a delicious treat that feels like dessert, yet packs a serious punch with 20 grams of whey protein.

Perfect for post-workout recovery or a quick energy boost on busy days, it’s a satisfying snack that keeps you full longer.

While the texture leans toward chewy and the price is a bit steep, its great taste and natural ingredients make it a top contender for anyone craving flavor with their fitness.

Be sure to also check out the best high protein vegetarian cookbook for more options! Also, here is the price history so you know exactly when to buy!

Price history for Snickers on Amazon

Fulfil Protein Bars

FULFIL Protein Snack Bars, Chocolate Salted Caramel, 15g Protein, Pantry Staples, 12 Count
Highlights
Great flavor and texture
Low sugar and carbs
Filling and nutritious

The Hershey FULFIL Chocolate Salted Caramel Snack Protein Bar hits the sweet spot with its delicious flavor and chewy texture.

It’s perfect for a quick energy boost on busy days, whether you’re at work or hitting the trails.

With only 1g of sugar and 2g of net carbs, it’s a smart choice for maintaining your diet without sacrificing taste.

The rich salted caramel and chocolate combination offers a satisfying treat that keeps you full longer.

Although a bit chewier than before and on the pricier side, its filling, nutritious profile makes it a solid pick for anyone craving a high-calorie, indulgent snack.

Be sure to also check out the best almond protein powder for more options! Also, here is the price history so you know exactly when to buy!

Price history for Fulfil Protein Bars on Amazon

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