Guide to Meal Replacement Bars for Gaining Weight

While many are trying to reduce their weight by exercising and going on a diet, there is a small group of people that are considered underweight and are struggling to gain a few pounds to reach the optimum weight for their age and size. Even if they eat a lot, these people are still not gaining weight, and there are a few reasons behind that. Reasons include having a fast metabolism where your body burn fats and calories quickly to get energy, and not really eating right since the nutrients found in the foods or meals you are eating are not enough for you to gain weight.

There two key nutrients that you need plenty of in order for you to add mass in your muscles. These nutrients are calories and protein. Calories are the nutrients that our body burns to gain energy, and protein is what we need to fix and repair tissues and also to increase muscle mass and strength.


The average person would need to consume 300 to 500 calories a day, but this is not enough for those with a fast metabolism who want to gain pounds. These people must consume at least 700 to 1,000 calories a day, and they will only be able to see significant changes in their bodies for about a month. Knowing how much calories each food that you eat contain is essential for you to gain weight quicker, but this could often get tedious as you would have to search online for every food’s calories constantly, and you must also memorize them so that you won’t have to consult the internet all the time.

Thankfully, there are many food products out there that have the Nutrition Facts label printed at the back of the packaging so that you will know immediately how many calories they have per serving. There are a lot of foods in the market that is high in calories, but most of them can be bad for you as they can contain a lot of sugar, which will raise your blood sugar levels and result in more complications like diabetes. What you need to look for are products that are high in calories but low in sugar and have plenty more nutrients to help you get energized after eating them while also providing strength for your body.

The nutrition bar is one of the healthiest foods that are high in calories, but some bars can have low calories, which is suitable for those trying to lose weight. Here are some of the best meal replacement bars for gaining weight.

Where to Buy
PROBAR - Meal Bar, Mocha Almond Fudge, Non-GMO, Gluten-Free, Certified Organic, Healthy, Plant-Based Whole Food Ingredients, Natural Energy (12 Count) Packaging May Vary
Permalean Peanut Butter Crunch Whey Protein Isolate Bars | 23g Protein Per Bar | Gluten Free | Non-GMO | 4g Sugar | 100% Natural | Low Carb | High Fiber Bars - Box of 12 by EnergyFirst
Goji-Chocolate High Fiber Energy Bars. Low Sugar, Gluten Free, Soy Free, Dairy Free (Vegan), Non-GMO. with Probiotics & Prebiotics for Healthy Digestion (12 Pack)
Luna BAR - Gluten Free Bars - Variety Pack - Flavors May Vary (1.69 Ounce Snack Bars, 12 Count)
NuGo Smarte Carb Peanut Butter Crunch, 20g Protein, 0g Sugar, 2g Net Carbs, 160 Calories, 12 Count


1. PROBAR Meal Bar

We are starting the list with the PROBAR Meal Bar, a nutrition bar made with non-GMO and gluten-free ingredients for an authentically healthy food product. The meal replacement bar contains 370 calories, 10 grams of protein, 6 grams of fiber, and 48 grams of carbohydrates.

These nutrients come from a mix of simple ingredients like chia seeds, flax seeds, and organic oats. In addition, the PROBAR meal bar comes in different flavors such as Blueberry Muffin, Chocolate Coconut, Oatmeal Chocolate Chip, Banana Nut Bread, and Mocha Almond Fudge.

2. Permalean Protein Bar

For those who want lean muscles while gaining weight, the Permalean Protein Bar contains 23 grams of protein to increase muscle mass and muscle strength in your body efficiently.

Along with its protein, the nutrition bar also has 230 calories, 7 grams of total fat, and 23 grams of carbohydrates for extra body fuel. The Permalean Protein Bar is available in two flavors, which are Peanut Butter Crunch and Chocolate Chip Cookie.

3. YoFiit Energy Bar

Another nutrition bar that gives energy, the YoFiit Energy Bar has all the nutrients and calories you need to gain weight, but it has the added benefits of probiotics and prebiotics that can help you control the bacterial balance in your body as well as stabilize your bowel movement.

Each YoFiit Energy bar contains 210 calories, 12 grams of fat, 25 grams of carbohydrates, and 8 grams of protein. It also has 500 milligrams of omega-3 fatty acids to improve heart health and prevent plaque buildup in its arteries.

4. LUNA Bar

Like most nutrition bars on this list, the LUNA Bar is gluten-free, so you won’t have to get unhealthy fats while gaining weight. Moreover, the bar’s nutrients come from simple ingredients like soy and organic oats that don’t have artificial sweeteners in them.

The LUNA bar contains about 190 calories, 6 grams of total fat, 28 grams of carbohydrates, and 7 grams of protein per serving, but the exact amount of nutrients in each bar depends on the flavor that you are eating. The flavors for the LUNA bar are Lemon Zest, Chocolate Peppermint Stick, Sea Salt Caramel, Blueberry Bliss, Creamy Dreamy Peanut Butter, and NutzOver Chocolate.

5. NuGoSmarte Carb

For those who are doing the keto diet and want to gain weight without consuming a lot of carbohydrates, they should try the NuGoSmarte Carb, which has 20 grams of protein and only 1 to 2 grams of net carbs per serving.

Also, the nutrition bar contains 190 calories, 5 grams of fiber, 4 grams of total fat, and 0 grams of sugar to provide healthy weight gain for your body. All of these nutrients are packed in a nutrition bar that comes in two flavors, and these flavors are Sugar-free Peanut Butter Crunch, and Chocolate Black Berry.

Where to Buy
ONE Protein Bars, Peanut Butter Cup, Gluten Free Protein Bars with 20g Protein and only 1g Sugar, Guilt-Free Snacking for High Protein Diets, 2.12 oz (12 Pack)
Supreme Protein 30g Protein Bar, Peanut Butter Crunch, 3 Ounce Bars, (12 Count)
BSN Protein Crisp Bar by Syntha-6, Low Sugar Whey Protein Bar, 20g of Protein, Peanut Butter Crunch, 12 Count
Zire Natural Peanut Butter Crunch Protein Bars - 20g Protein w/Whey Protein Isolate - Low Sugar, High Protein Snacks, Meal Replacement Bars - Gluten Free, Non-GMO, No Artificial Ingredients (9 Bars)
Evolve Plant-Based Protein Bars, Trail Mix, 10g Protein, 1.94 Oz 12 Count


6. ONE Protein Bar

The ONE Protein Bar is a nutrition bar that has 20 grams of protein and only 1 gram of sugar, which is a combination of nutrients that is perfect for those who are bodybuilding or increasing their muscle mass.

In addition to the protein and sugar, the nutrition bar has 22 calories, 9 grams of fat, and 23 grams of carbohydrates per serving.

The ONE Protein Bar comes in dozens of flavors, but the most popular ones are the Chocolate Chip Cookie Dough, Peanut Butter Cup, Dark Chocolate Sea Salt, and Almond Bliss.

7. Supreme Protein Bar

A nutrition bar that contains the highest amount of protein and calories out of all the bars on this list, the Supreme Protein Bar has 380 calories and 30 grams of protein for the ultimate weight gain and bodybuilding snack or meal.

Besides its calories and protein, the Supreme Protein Bar has 18 grams of fat, 28 grams of carbohydrates, and different vitamins and minerals like vitamins A, C, E, potassium, and zinc.

The Supreme Protein Bar is available in two flavors, which are Caramel Nut Chocolate and Peanut Butter Crunch.

8. BSN Protein Crisp Bar

The BSN Protein Crisp Bar contains 20 grams of protein, which the average amount for a protein bar, along with only having 4 grams of sugar to minimize your intake of that nutrient.

The nutrition bar also has 230 calories, 6 grams of fat, and 24 grams of carbohydrates to help you gain a little bit of weight. Also, these nutrients are found in the different flavors available for the BSN Protein Crisp Bar. The popular flavors for the nutrition bar include Chocolate Crunch, Cookies & Cream, Mocha, and Peanut Butter Crunch.

9. ZIRE Protein Bar

The ZIRE Protein Bar is another nutrition bar that has 20 grams of protein, but its protein comes from a whey protein isolate that gives the bar a smoother texture that wouldn’t leave a chalky taste in your mouth.

Moreover, the protein bar contains 250 calories, 14 grams of fat, and 26 grams of carbs that includes 4 grams of dietary fiber and only 2 grams of total sugar. Currently, the ZIRE Protein Bar only has one flavor, which is Peanut Butter Crunch.

10. Evolve Plant-Based Protein Bar

The Evolve Protein Bar is made with non-GMO pea protein that is plant-based and gluten-free, which makes it the perfect nutrition bar for vegetarians that wanted to gain extra pounds.

To add to its pea protein, the protein bar also uses dairy-free and soy-free ingredients that don’t have any artificial flavorings to make it a suitable food not only for vegetarians but also for people who are allergic to milk and soybeans.

The protein bar contains 230 calories, 12 grams of fats, 10 grams of protein, and 26 grams of carbohydrates. It is also available in diverse flavors like Almond Cherry, Peanut Butter & Jelly, Trail Mix, and Peanut Butter.

These are just 10 of the most effective nutrition bars for gaining weight, so there are still several bars out there that may contain more calories than the ones on the list. However, the mentioned nutrition bars may be safer food options as they provide plenty of other nutrients as well. If you are planning to consume a lot of calories to gain weight, make sure that you accompany your diet with regular exercise so that you can look fit by burning excessive fats and calories.