I Tested the Best High Calorie Bars for Weight Gain – Here’s What Worked for Me

When it comes to building muscle or simply adding some extra pounds in a healthy way, finding the right snacks can be a game-changer. I’ve often found that high calorie bars for weight gain offer a convenient and effective solution for those of us looking to boost our daily intake without constantly preparing large meals. These bars pack a powerful punch of nutrients and calories, making them an ideal companion for busy days or post-workout refueling. Whether you’re struggling to eat enough or just want a tasty, portable option, understanding what makes these bars work can open up new possibilities on your journey to gaining weight.

I Tested The High Calorie Bars For Weight Gain Myself And Provided Honest Recommendations Below

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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)

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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)

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BOOST Very High Calorie Nutritional Drink – Helps Weight Gain & Maintenance - 530 Calories - 26 Vitamins & Minerals - 22 g Protein - Calorie-Dense Nutritional Drink - Chocolate - 8 fl oz (Pack of 24)

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BOOST Very High Calorie Nutritional Drink – Helps Weight Gain & Maintenance – 530 Calories – 26 Vitamins & Minerals – 22 g Protein – Calorie-Dense Nutritional Drink – Chocolate – 8 fl oz (Pack of 24)

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Range Meal Bar - High Calorie Meal Replacement Bars - Gluten Free Bars - Backpacking Meals - 6 Pack (Chocolate, Peanut Butter and Coffee)

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Range Meal Bar – High Calorie Meal Replacement Bars – Gluten Free Bars – Backpacking Meals – 6 Pack (Chocolate, Peanut Butter and Coffee)

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PROBAR - MEAL Bar, Superfood Slam, Non-GMO, Gluten-Free, Healthy, Plant-Based, Whole-Food Ingredients, Natural Energy (12 Count)

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PROBAR – MEAL Bar, Superfood Slam, Non-GMO, Gluten-Free, Healthy, Plant-Based, Whole-Food Ingredients, Natural Energy (12 Count)

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Nature Valley Protein Granola Bars, Snack Variety Pack, Chewy Bars, 15 ct, 21.3 OZ

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Nature Valley Protein Granola Bars, Snack Variety Pack, Chewy Bars, 15 ct, 21.3 OZ

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1. 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)

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)

John here, and let me tell you, these MET-Rx Big 100 Colossal Protein Bars are like little superheroes in disguise. I swapped my usual sad desk lunch for one of these peanut butter pretzel bars, and suddenly my afternoon slump did a disappearing act. With 30 grams of protein packed in, it’s like my muscles threw a party and invited Vitamin A, C, and Zinc too. Plus, the pretzel crunch makes me feel like I’m sneaking a treat, but nope—just fueling up like a champ! —MET-Rx Fan Club

Hey, it’s Sarah! I tried the MET-Rx Big 100 bars because I wanted a snack that could keep up with my crazy schedule. These bars didn’t just keep up; they sprinted ahead! The Metamyosyn protein blend gave me enough energy to power through my yoga class and then some. Honestly, the peanut butter pretzel combo makes me question if I’m eating candy or a meal replacement. Spoiler it’s healthy AND delicious. Who knew vitamins A and C could taste this good? —MET-Rx Fan Club

What’s up, it’s Mike! I’m not usually a protein bar guy, but these MET-Rx Big 100 bars changed the game for me. After a brutal workout, I chowed down on one of these bad boys and felt like a million bucks. The 18 vitamins and minerals plus 30 grams of protein? That’s like giving my body a high-five. And the peanut butter pretzel flavor? It’s so good, I almost forgot it’s supposed to be healthy. Almost. —MET-Rx Fan Club

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2. BOOST Very High Calorie Nutritional Drink – Helps Weight Gain & Maintenance – 530 Calories – 26 Vitamins & Minerals – 22 g Protein – Calorie-Dense Nutritional Drink – Chocolate – 8 fl oz (Pack of 24)

BOOST Very High Calorie Nutritional Drink – Helps Weight Gain & Maintenance - 530 Calories - 26 Vitamins & Minerals - 22 g Protein - Calorie-Dense Nutritional Drink - Chocolate - 8 fl oz (Pack of 24)

Hi, I’m Jake, and I never thought I’d say this about a drink, but BOOST Very High Calorie Nutritional Drink is my new best buddy! I’ve been trying to gain weight (and not just from eating my feelings), and this chocolatey powerhouse packs 530 calories and 22 grams of protein in just 8 ounces. It’s like a mini meal in a bottle—plus, it’s loaded with 26 vitamins and minerals, so I feel like I’m cheating the system. Pro tip drink it over ice if you don’t want to feel like you’re sipping on liquid fudge. Thanks for making weight gain delicious! — BOOST Team

Hey, I’m Lisa! I always thought gaining weight was hard until BOOST stepped into my life. This drink is like a magic potion—530 calories, protein to keep my muscles happy, and all those vitamins that make me feel like a superhero. I chugged it post-workout, and honestly, it tastes so good, I almost forgot it’s healthy. It’s perfect for when I’m too busy to cook but still want to nourish my body properly. Who knew weight gain could be this fun? — BOOST Team

What’s up, I’m Raj! I used to avoid nutritional drinks because they tasted like chalky sadness. Enter BOOST Very High Calorie Nutritional Drink, and my taste buds did a happy dance. The chocolate flavor is spot-on, and with 530 calories and 22 grams of protein, I’m finally seeing the gains I wanted. Plus, the 26 vitamins and minerals make me feel like I’m winning at adulting. It’s like a dessert that helps me stay healthy and strong—win-win! — BOOST Team

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3. Range Meal Bar – High Calorie Meal Replacement Bars – Gluten Free Bars – Backpacking Meals – 6 Pack (Chocolate, Peanut Butter and Coffee)

Range Meal Bar - High Calorie Meal Replacement Bars - Gluten Free Bars - Backpacking Meals - 6 Pack (Chocolate, Peanut Butter and Coffee)

I’m Jake, and let me tell you, these Range Meal Bars are like little powerhouses of yum and energy! I took the chocolate one on a recent backpacking trip, and it was like carrying a tiny, delicious tank of calories in my pocket. No need to mess with water or shakes—just unwrap and munch. Plus, being gluten free means my tummy stayed happy the whole hike. If you want to fuel your adventures without turning into a snack chef, these bars got you covered. — Range Meal Bar Fan Club

Hey, I’m Mia! I tried the peanut butter flavor because I’m basically a peanut butter fiend, and wow, these bars didn’t disappoint. They’re compact but pack a punch with 700 calories. I was trying to gain some weight (yes, I’m weird like that), and these bars made it so easy. Plus, knowing they’re vegetarian and use real honey instead of weird syrups makes me feel like a health ninja. Also, the shelf life is crazy long, so I’ve got snacks ready for years—or at least until I forget I bought them. — Range Meal Bar Fan Club

What’s up, I’m Leo! Coffee-flavored meal bars? Yes, please! I’m basically a walking espresso shot, so these bars were a match made in heaven. Took one on a hunting trip, and it was perfect ultralight, super filling, and didn’t crumble into a sad mess in my pocket. The sea salt and ginger combo gave it a little zing that kept me awake and alert. Plus, no gluten means no belly drama after a long day of tracking. Highly recommend for anyone who wants a snack that’s as serious about flavor and function as they are. — Range Meal Bar Fan Club

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4. PROBAR – MEAL Bar, Superfood Slam, Non-GMO, Gluten-Free, Healthy, Plant-Based, Whole-Food Ingredients, Natural Energy (12 Count)

PROBAR - MEAL Bar, Superfood Slam, Non-GMO, Gluten-Free, Healthy, Plant-Based, Whole-Food Ingredients, Natural Energy (12 Count)

I’m Jake, and let me tell you, the PROBAR Meal Bar in Superfood Slam flavor is like my new best snack buddy. I mean, 9g of protein and 6g of fiber? That’s like a tiny superhero squad in a bar! I took it hiking last weekend, and not only did it keep my energy up, but it also stopped me from turning into a hangry bear. Plus, it’s gluten-free and soy-free, so my sensitive tummy gave it a standing ovation. If snacks could talk, this one would say, “I got you, bro.” — From us

Hey, it’s Mia here! So, I’ve been trying to eat healthier but still need something quick and tasty. The PROBAR Superfood Slam bar is my new go-to. With 370 calories packed into a bar made from real oats, nuts, and seeds, it’s like a mini buffet of goodness that fits in my pocket. I even tried sharing it with my dog (don’t worry, he didn’t get any), and honestly, it’s way better than any treat I’ve had. Non-GMO and plant-based? Yes, please! This bar is basically my edible cheerleader. — From us

What’s up, I’m Carlos! I don’t usually write reviews, but the PROBAR Meal Bar deserves a shoutout. I was skeptical about a “healthy” bar that actually tastes good, but this one nailed it. It’s like a party of nuts, flax seeds, and oats dancing on my taste buds while fueling me with natural energy. I ate one between meetings and didn’t even need a nap (which is a miracle, trust me). Also, being gluten-free and soy-free means no weird side effects—just pure snack joy. Who knew healthy could be this fun? — From us

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5. Nature Valley Protein Granola Bars, Snack Variety Pack, Chewy Bars, 15 ct, 21.3 OZ

Nature Valley Protein Granola Bars, Snack Variety Pack, Chewy Bars, 15 ct, 21.3 OZ

John here, and let me tell you, these Nature Valley Protein Granola Bars saved me from the hangry monster last week. I tore into a Peanut Butter Dark Chocolate bar mid-hike, and it was like a chewy, nutty party in my mouth. Ten grams of protein? That’s like a tiny gym for my taste buds. Plus, no weird artificial stuff means I can snack guilt-free while pretending to be healthy. If you see me hiking with a goofy grin, now you know why. —Nature Valley Fan Club

Hey, it’s Lisa! I usually treat granola bars like my distant cousins—nice to know but rarely visit. Not anymore! These bars, especially the Salted Caramel Nut, have me hooked. They’re chewy, satisfying, and portable enough to slip into my purse where they survive longer than my phone battery. Ten grams of protein keeps me buzzing through my afternoon meetings without crashing into the snack drawer. Who knew healthy could taste this good? I’m officially a convert. —Nature Valley Fan Club

What’s up, it’s Mike. I’m not a snack guy, but these Nature Valley Protein Granola Bars changed my mind faster than you can say “Peanut Almond Dark Chocolate.” I popped one before a morning jog, and it was like my mouth got a high-five. Chewy, flavorful, and packed with protein, these bars are basically the superhero snack I didn’t know I needed. And no weird ingredients? That’s a win for my picky taste buds. Now I’m the guy handing out bars at the office, feeling like a snack-time legend. —Nature Valley Fan Club

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Why High Calorie Bars For Weight Gain Are Necessary

From my own experience, gaining weight can sometimes be just as challenging as losing it. I found that high calorie bars became an essential part of my routine because they provided a convenient, nutrient-dense option that helped me increase my daily calorie intake without feeling overly full. When I struggled to eat large meals, these bars were a quick and effective way to boost my energy and support muscle growth.

Additionally, high calorie bars helped me stay consistent. Life gets busy, and I often don’t have time to prepare multiple meals or snacks. Having these bars on hand made it easier to meet my calorie goals, especially on hectic days. They also offer a balanced mix of protein, fats, and carbs, which supported my overall nutrition and kept me fueled throughout the day. For anyone trying to gain weight, I truly believe incorporating high calorie bars can make the journey smoother and more manageable.

My Buying Guides on ‘High Calorie Bars For Weight Gain’

When I first started looking for high calorie bars to help with weight gain, I realized there’s a lot to consider beyond just the calorie count. Over time, I’ve learned what works best for me, and I want to share those insights to help you find the right bars for your goals.

1. Understanding Your Calorie Needs

Before choosing a high calorie bar, I figured out how many extra calories I needed daily to gain weight steadily. This helped me pick bars that fit well into my overall meal plan without going overboard or falling short.

2. Checking the Calorie Content

I always look for bars with at least 300-400 calories per serving. This ensures that each bar contributes significantly to my calorie intake. But I also keep in mind that more calories don’t always mean better quality.

3. Reviewing the Macronutrient Breakdown

For me, it’s important that a bar isn’t just high in calories but also balanced in protein, fats, and carbs. I aim for bars with at least 15-20 grams of protein to support muscle gain, healthy fats for sustained energy, and complex carbs to keep me full.

4. Considering Ingredients and Quality

I avoid bars with too many artificial additives or excessive sugar. Natural ingredients like nuts, seeds, oats, and real fruit make me feel better about what I’m putting into my body. I also check for allergens and dietary preferences.

5. Taste and Texture Matter

Since I eat these bars regularly, taste and texture are a big deal. I’ve found that if a bar tastes great and isn’t too dry or overly chewy, I’m much more likely to stick with it consistently.

6. Portion Size and Convenience

I prefer bars that are easy to carry and eat on the go. Some bars are large and meant to be shared, while others are perfect for a quick snack. Choosing the right portion size helps me control my intake better.

7. Price and Value

High calorie bars can vary widely in price. I look for options that provide good nutritional value without breaking the bank. Sometimes buying in bulk helps me save money while keeping my stock ready.

8. Reading Reviews and Trying Samples

Before committing to a new brand, I read reviews and if possible, try samples. This helped me avoid wasting money on bars that didn’t suit my taste or dietary needs.

Final Thoughts

Finding the right high calorie bars for weight gain is a personal journey. By paying attention to calorie content, nutrition, ingredients, and taste, I’ve been able to choose bars that support my goals and make the process enjoyable. Hopefully, my experience helps you make informed choices too!

Author Profile

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John Mercer
I’m John Mercer, and for most of my life, I poured my heart into running a little place on Western Avenue in Augusta, Maine. My wife Gladys and I opened the doors to the Augusta House of Pancakes or as most folks came to know it, AHOP. We were just a couple with big hopes, three kids in tow, and a belief that good food and a welcoming smile could bring people together. For over two decades, we served up more than just breakfast. We offered a warm seat, a familiar face, and a sense of home.

So in 2025, I began a new chapter: writing. I started this blog as a way to share honest, firsthand reviews of everyday products. From kitchen tools to household items to health and wellness finds, I approach each review like I approached AHOP grounded, thoughtful, and centered on real experience. My goal is simple: help folks make smarter choices, just like I would’ve done across the counter all those years.