Top 10 High-Calorie Foods Every Skinny Guy Should Eat to Gain Weight Fast

Struggling to gain weight? You’re not alone. If you’ve been crushing workouts and stuffing your face but still not seeing the scale move, you’re probably not eating enough of the right high-calorie foods.

To bulk up fast, you need calorie-dense foods that pack a serious punch in every bite. Forget low-calorie, "healthy" snacks—your body needs fuel, and lots of it. Here’s a list of the top 10 high-calorie foods to help skinny guys gain weight fast.

1. Nut Butters – A Spoonful of Gains

Peanut butter, almond butter, cashew butter—whatever your preference, nut butters are high-calorie and nutrient-dense. Just two tablespoons pack around 200 calories, plus healthy fats and protein. Add it to shakes, oatmeal, or just eat it straight from the jar (no judgment).

NuttZo are nut butters with multiple types of nuts for maximum nutrition get some here

2. Avocados – The King of Healthy Fats

Avocados aren’t just for toast-loving influencers. A single avocado contains around 300-400 calories, loaded with healthy monounsaturated fats, fiber, and vitamins. Smash it on toast, blend it into smoothies, or eat it plain with some salt and pepper.

3. Whole Milk & Dairy – Old-School Bulking Trick

Milk is a classic weight-gain food. One cup of whole milk has 150 calories, plus protein and fat. Go for full-fat versionsof milk, yogurt, and cheese. Better yet, try chocolate milk post-workout—it has the perfect carb-to-protein ratio for muscle recovery.

4. Rice & Pasta – Cheap & Effective Carbs

Carbs fuel muscle growth, and rice and pasta are calorie-dense and easy to eat in large amounts. One cup of cooked rice has 200+ calories, and pasta packs even more. Add some olive oil, cheese, or meat, and you’ve got an easy high-calorie meal.

5. Fatty Meats & Salmon – Protein + Calories = Gains

Lean meats are great, but if you’re trying to gain weight, fattier cuts of beef, pork, and chicken are your best bet. A serving of ribeye steak or chicken thighs has twice the calories of leaner cuts. Salmon is another great choice, packed with healthy omega-3s and 250+ calories per filet.

6. Eggs – The Perfect Muscle-Building Food

Eggs are one of the best protein sources for gaining muscle. One large egg has 70 calories, so eat 4-6 eggs per meal, and you’ll easily hit your calorie goals. Scramble them, fry them in butter, or make an omelet loaded with cheese and veggies.

7. Protein Bars – High-Calorie Snacks on the Go

Protein bars are quick, convenient, and packed with calories. Look for bars with 300-400+ calories, at least 10g of fat, and 20g+ of protein to support muscle growth. Keep a few in your bag for easy snacking anytime.

Some of the best protein bars are Barebells, in terms of taste and nutrition get them here

8. Dried Fruits & Nuts – Small but Calorie-Dense

A handful of nuts and dried fruit is a high-calorie powerhouse. Just 1/4 cup of almonds has 200 calories, and raisins or dates pack even more. Mix them together for an easy snack that delivers carbs, fats, and protein in one hit.

9. Oils & Fats – Sneaky Calorie Boosters

Cooking oils like olive oil, coconut oil, and butter are pure fat, meaning they’re high in calories. Just one tablespoon has 120+ calories. Drizzle extra olive oil over your meals, add butter to rice, or cook with coconut oil to boost your calorie intake effortlessly.

10. Mass Gainer Supplements – The Easiest Way to Pack on Calories

Let’s be real—sometimes eating 3,500+ calories a day feels impossible. That’s where mass gainers come in. These calorie-loaded shakes are designed specifically for hardgainers like you. A single serving can have anywhere from 600 to 1,200 calories, packed with carbs, protein, and healthy fats. However, always try real food first before trying mass gainers, due to the carbs being low quality.

Get a tried and true mass gainer here

Final Thoughts: Eat Big, Lift Heavy, Repeat

If you’re serious about gaining weight, you need to eat more than you think—every single day. High-calorie foods like mass gainers, nut butters, fatty meats, and dairy will help you get there faster.

Pair this diet with heavy strength training, and you’ll be on your way to serious muscle growth. Stay consistent, track your calories, and watch your body transform.

Ready to start bulking? Grab these essentials now:

Try Optimum Nutrition Mass Gainer here
Try NuttZo nut butters here
Try Barebells Protein bars here

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