Putting on healthy weight sounds simple until you realize most “high-calorie” ideas are either loaded with junk or taste like sadness in a glass. And honestly, nobody wants to drink something every day if it feels like a chore.

That’s why smoothies are such a cheat code for weight gain. You can pack in calories, protein, healthy fats, and carbs without feeling like you just ate a full dinner. Plus, they’re easy to customize depending on what your body actually likes.

I’m sharing my favorite weight gain smoothie recipes that are filling, creamy, and actually enjoyable to drink. Not “drink it fast and suffer” smoothies. Real ones.

1. Peanut Butter Banana Oat Smoothie

If you’re trying to gain weight, peanut butter and bananas should basically become your best friends. This smoothie is thick, creamy, and has that comforting “I’m eating something real” feeling.

It’s also ridiculously reliable because it works as breakfast, a post-workout shake, or even a lazy dinner when you don’t feel like cooking. I’ve made this one so many times I could probably blend it in my sleep.

The oats give it body, the banana makes it naturally sweet, and the peanut butter adds that rich, calorie-dense punch that actually sticks with you.

Ingredients

• 1 ripe banana
• 2 tablespoons peanut butter
• 1/2 cup rolled oats
• 1 cup whole milk
• 1/2 cup Greek yogurt
• 1 tablespoon honey
• 1/2 teaspoon cinnamon
• 4–5 ice cubes

Step-by-Step Instructions

1. Add the milk and yogurt to your blender first so the blades don’t struggle.
2. Toss in the banana, oats, peanut butter, honey, and cinnamon.
3. Blend for 30–45 seconds until smooth and thick.
4. Add ice and blend again until you get that creamy milkshake texture.
5. Taste and adjust sweetness with a little more honey if needed.

Why You’ll Love It

It tastes like a dessert smoothie but still feels like a real meal. You’ll also stay full for hours because oats and peanut butter don’t mess around.

Tips

Use frozen banana slices if you want it extra thick without adding too much ice. For serving, pair it with two boiled eggs or toast if you want an even bigger calorie boost.

2. Chocolate Avocado Weight Gain Smoothie

Avocado in a smoothie sounds weird until you try it, then suddenly you understand the hype. It makes everything taste ridiculously creamy without needing a ton of dairy.

This smoothie is perfect if you want weight gain calories without feeling overly stuffed. It’s rich, smooth, and tastes like chocolate pudding in drink form.

I love this one because it feels fancy even though it’s basically just throwing ingredients into a blender like a chaotic adult.

Ingredients

• 1/2 ripe avocado
• 1 tablespoon cocoa powder
• 1 cup whole milk
• 1/2 cup Greek yogurt
• 1 tablespoon peanut butter or almond butter
• 1 tablespoon honey or maple syrup
• 1/2 teaspoon vanilla extract
• 1 handful ice

Step-by-Step Instructions

1. Scoop the avocado into your blender and add the milk.
2. Add cocoa powder, yogurt, peanut butter, honey, and vanilla.
3. Blend until completely smooth with no avocado chunks left.
4. Add ice and blend again until thick and cold.
5. Pour into a glass and drink immediately for the best texture.

Why You’ll Love It

It tastes like a chocolate milkshake but gives you healthy fats that help with steady weight gain. It’s also great if you get tired of banana-based smoothies.

Tips

If you want it extra high-calorie, add one scoop of chocolate protein powder and reduce the cocoa slightly. Serve it with a handful of nuts or granola on the side for an easy snack combo.

3. Strawberry Cheesecake Smoothie

Some smoothies taste healthy in the worst way possible, like you’re being punished for trying. This one does the opposite and tastes like dessert while still being nutrient-packed.

It has that creamy cheesecake vibe thanks to yogurt and a little vanilla, and strawberries keep it bright and sweet. It’s a great choice if you struggle with appetite because it goes down easily.

I also like this one when I’m craving something sweet but don’t want to start eating cookies like it’s a hobby.

Ingredients

• 1 cup strawberries (fresh or frozen)
• 1 cup whole milk
• 1/2 cup Greek yogurt
• 2 tablespoons cream cheese
• 1 tablespoon honey
• 1/2 teaspoon vanilla extract
• 2 tablespoons crushed graham crackers (optional)
• Ice cubes (if using fresh strawberries)

Step-by-Step Instructions

1. Add milk, yogurt, and cream cheese to the blender first.
2. Add strawberries, honey, vanilla, and graham crackers if using.
3. Blend until thick and smooth.
4. If you want it colder, add ice and blend again.
5. Pour and drink immediately before it thins out.

Why You’ll Love It

It tastes like a strawberry dessert but has enough protein and fat to actually support weight gain. It’s also super easy to drink even if you don’t feel hungry.

Tips

Use frozen strawberries for a thicker milkshake texture without watering it down. Serve it with a peanut butter sandwich if you want a serious calorie boost.

4. Mango Coconut Cream Smoothie

Mango smoothies always feel like vacation in a glass, but this one also does real work for weight gain. Coconut milk adds calories fast, and the flavor combo is just unfairly good.

It’s sweet, tropical, and super creamy, which makes it great for people who get bored of chocolate and peanut butter flavors. I’ve noticed this one is especially easy to drink after workouts.

If you want something that tastes refreshing but still helps you gain, this is the move.

Ingredients

• 1 cup mango chunks (fresh or frozen)
• 3/4 cup coconut milk (full-fat)
• 1/2 cup whole milk
• 1/2 cup Greek yogurt
• 1 tablespoon honey
• 1 tablespoon chia seeds
• 1/2 teaspoon vanilla extract
• Ice cubes (optional)

Step-by-Step Instructions

1. Add coconut milk and whole milk to the blender first.
2. Add mango, yogurt, honey, chia seeds, and vanilla.
3. Blend for 40 seconds until smooth.
4. Let it sit for 2 minutes if you want chia seeds to thicken it slightly.
5. Blend again briefly, then pour and enjoy.

Why You’ll Love It

It tastes like a tropical milkshake but packs healthy fats and calories without feeling heavy. The chia seeds also help keep you full longer.

Tips

For extra calories, blend in 2 tablespoons of shredded coconut for a thicker texture. Serve it alongside a small bowl of rice or oats if you want a full meal vibe.

5. Coffee Protein Weight Gain Smoothie

This smoothie is for those mornings when you want caffeine but also need calories. Instead of drinking coffee and then forgetting to eat, you can combine everything into one thick, energizing drink.

It’s creamy, slightly sweet, and has that iced latte flavor that feels like a treat. I’m not saying it’ll replace your favorite coffee shop drink, but it gets pretty close.

If you’re someone who skips breakfast a lot, this one is basically your safety net.

Ingredients

• 1 cup chilled coffee
• 1 cup whole milk
• 1 scoop vanilla protein powder
• 1 tablespoon peanut butter
• 1 banana
• 1 tablespoon honey
• 1/2 teaspoon cinnamon
• Ice cubes

Step-by-Step Instructions

1. Pour coffee and milk into the blender first.
2. Add banana, peanut butter, protein powder, honey, and cinnamon.
3. Blend until smooth and creamy.
4. Add ice and blend again for a thicker iced texture.
5. Taste and adjust sweetness if needed.

Why You’ll Love It

It gives you energy and calories at the same time, which is honestly a great combo. The peanut butter also makes it filling enough to count as breakfast.

Tips

Use cold brew coffee for smoother flavor and less bitterness. Pair it with a buttered bagel if you want to really push your calorie intake.

6. Blueberry Almond Butter Smoothie

Blueberries are great because they taste sweet but still feel clean and fresh. This smoothie is a nice break from heavier flavors, but it still packs calories thanks to almond butter and whole milk.

It’s thick, fruity, and has a slightly nutty flavor that makes it feel more “grown up” than a basic berry smoothie. I also like how it doesn’t taste overly sugary even though it’s satisfying.

If you want weight gain without feeling like you’re drinking a dessert every time, this one fits perfectly.

Ingredients

• 1 cup blueberries
• 1 cup whole milk
• 1/2 cup Greek yogurt
• 2 tablespoons almond butter
• 1 tablespoon honey
• 1/2 teaspoon vanilla extract
• 1 tablespoon ground flaxseed
• Ice cubes (optional)

Step-by-Step Instructions

1. Add milk and yogurt to the blender first.
2. Add blueberries, almond butter, honey, vanilla, and flaxseed.
3. Blend until smooth, about 30–40 seconds.
4. Add ice if needed and blend again.
5. Pour into a glass and drink while cold.

Why You’ll Love It

It’s creamy but still refreshing, and the almond butter adds calories without overpowering the fruit flavor. It’s also super easy to digest.

Tips

Frozen blueberries make the smoothie thicker and colder without extra ice. Serve it with a granola bar or trail mix for a quick snack pairing.

7. Date and Walnut Weight Gain Smoothie

Dates are basically nature’s caramel, and they’re one of the easiest ways to add calories without using processed sugar. When you blend them with walnuts and milk, the result tastes like a rich dessert shake.

This smoothie feels comforting and heavy in a good way, like something you’d drink when you want to actually feel full afterward. It’s especially great if you have a fast metabolism and meals don’t stick.

I’ll be honest, this one surprised me the first time I made it because it tasted way too good for how simple it was.

Ingredients

• 4–5 dates (pitted)
• 1 cup whole milk
• 1/2 cup Greek yogurt
• 2 tablespoons walnuts
• 1 tablespoon peanut butter (optional)
• 1/2 teaspoon cinnamon
• 1/2 teaspoon vanilla extract
• Ice cubes

Step-by-Step Instructions

1. Soak the dates in warm water for 5 minutes if they feel dry.
2. Add milk and yogurt to the blender first.
3. Add dates, walnuts, cinnamon, vanilla, and peanut butter if using.
4. Blend until completely smooth, about 45 seconds.
5. Add ice and blend again if you want it colder.

Why You’ll Love It

It tastes like a caramel-nut milkshake and keeps you full for a long time. The walnuts add healthy fats that make weight gain easier.

Tips

Add a pinch of salt to make the flavor taste even richer and more “dessert-like.” Serve it with a slice of banana bread if you want a cozy snack combo.

8. Pineapple Yogurt Weight Gain Smoothie

Pineapple smoothies can be hit or miss because they sometimes end up tasting watery. This one avoids that problem by using thick yogurt and full-fat milk, which makes it creamy and filling.

It’s sweet, tangy, and refreshing, so it works really well if you don’t like heavy flavors early in the day. I also think pineapple makes smoothies taste more “alive,” if that makes sense.

If you want weight gain calories without feeling like you’re forcing yourself, this one is a solid option.

Ingredients

• 1 cup pineapple chunks
• 1 cup whole milk
• 3/4 cup Greek yogurt
• 1 tablespoon honey
• 1 tablespoon chia seeds
• 1/2 banana (optional for sweetness)
• 1/2 teaspoon vanilla extract
• Ice cubes (optional)

Step-by-Step Instructions

1. Add milk and yogurt into the blender first.
2. Add pineapple, honey, chia seeds, banana if using, and vanilla.
3. Blend until creamy and smooth.
4. Let it sit for 2 minutes if you want chia seeds to thicken it.
5. Blend again quickly, then pour and enjoy.

Why You’ll Love It

It tastes fresh and tropical but still gives you protein and calories. It’s also great if you get tired of heavier smoothies.

Tips

Use frozen pineapple to make it thicker and more milkshake-like. Serve it with a handful of roasted peanuts for a salty-sweet pairing that works surprisingly well.

9. Classic Vanilla Mass Gainer Smoothie (Homemade)

Sometimes you don’t want a fancy flavor combination, you just want a smoothie that does its job. This one is simple, creamy, and high-calorie without tasting weird or overly “health drink-ish.”

It’s basically the homemade version of those expensive weight gain shakes, except you control the ingredients. I like it because it’s customizable, and you can drink it every day without getting bored.

If you’re serious about gaining weight, this is the smoothie you keep in your rotation like a reliable friend who always shows up.

Ingredients

• 1 cup whole milk
• 1/2 cup heavy cream (optional but effective)
• 1 banana
• 1/2 cup rolled oats
• 1 scoop vanilla protein powder
• 2 tablespoons peanut butter
• 1 tablespoon honey
• 1/2 teaspoon vanilla extract
• Ice cubes

Step-by-Step Instructions

1. Add whole milk and heavy cream into the blender first.
2. Add banana, oats, protein powder, peanut butter, honey, and vanilla.
3. Blend for 45 seconds until smooth and thick.
4. Add ice and blend again if you want it colder.
5. Pour into a large glass and drink slowly since it’s filling.

Why You’ll Love It

It’s high-calorie, high-protein, and tastes like a vanilla milkshake. It also works as a full meal replacement when you don’t have time to cook.

Tips

Blend the oats first for a few seconds if you want a smoother texture. Serve it with a bowl of cereal or toast if you want to push your daily calorie goal even faster.

Final Thoughts

Weight gain smoothies work best when you treat them like part of your routine instead of a random thing you drink once a week. If you stay consistent, your body will respond, and you’ll probably feel stronger and more energized too.

Try a few of these and pay attention to what feels easiest to drink and digest. Once you find your “go-to,” gaining weight stops feeling like a struggle and starts feeling kind of automatic, which is honestly the goal.