Gaining weight in a healthy way comes down to eating more calories than you burn, and blended drinks make that surprisingly easy. The best smoothie recipes for weight gain lean on calorie-dense ingredients like nut butter, banana, oats, avocado, whole milk, and protein powder.
Sipping your calories is often gentler than forcing down another full plate, especially if you have a small appetite. Each smoothie below is already published on Wholesome Cove, so you can jump straight to the full recipe with one click.
A powerful high-speed blender makes these thick, creamy blends effortless. Keeping a tub of protein powder on hand also lets you add 20 to 30 grams of protein to any recipe here.

1. Peanut Butter Banana Smoothie

This is the classic starting point for anyone trying to add calories without much effort. Ripe banana and a generous scoop of natural peanut butter deliver healthy fats, potassium, and natural sweetness in every sip.
Blended with milk and a handful of ice, it turns thick and milkshake-like. The peanut butter alone adds close to 200 calories, which makes this an easy win for a weight-gain routine.
Have it as a filling breakfast or a post-workout recovery drink. It stays satisfying for hours thanks to the fat and fiber combination.
2. Chocolate Peanut Butter Banana Smoothie

Think of this as dessert that quietly helps you bulk up. Cocoa, peanut butter, and banana blend into something that tastes like a chocolate milkshake but carries real nutrition.
The trio stacks up calories fast while keeping the flavor rich and indulgent. Add a scoop of chocolate protein powder if you want to push the number even higher.
It is a great option for kids or picky eaters who need extra energy. The chocolate masks any earthy protein taste completely.
3. Peanut Butter Oatmeal Smoothie

Adding oats to a smoothie is one of the simplest ways to raise the calorie count. The oats bring slow-digesting carbohydrates that keep your energy steady through the morning.
Combined with peanut butter and banana, this drink eats more like a meal than a snack. It is thick, hearty, and genuinely filling.
This one works well as a breakfast replacement on busy days. Blend it the night before and shake it up when you wake.
4. Almond Butter Smoothie

Almond butter offers the same calorie boost as peanut butter with a milder, slightly sweeter flavor. A couple of tablespoons of almond butter pack in vitamin E, magnesium, and heart-healthy fats.
Blended with banana and milk, it becomes velvety and rich. The nutty taste pairs beautifully with a drizzle of honey or a pinch of cinnamon.
This is a smart pick if peanuts do not agree with you. It still delivers the dense calories you need to gain weight.
5. Peanut Butter Smoothie

Sometimes you want the pure, unmistakable taste of peanut butter and nothing else. This streamlined recipe keeps the focus on that creamy, salty-sweet flavor.
With just a few ingredients, it comes together in under five minutes. The peanut butter carries the calorie load while milk makes it smooth and drinkable.
It is endlessly customizable with a banana, a date, or a scoop of protein. Consider it your reliable everyday base for gaining weight.
6. Peanut Butter Jelly Smoothie

This drink tastes exactly like the sandwich you loved as a kid. Peanut butter meets sweet berries for a nostalgic, calorie-rich treat.
The jam or fresh berries add natural sugars that fuel your day. Peanut butter keeps it dense and satisfying, so the calories add up quickly.
It is a fun way to make weight gain feel like a reward. Children and adults with small appetites tend to love this one.
7. Banana Date Smoothie

Dates are nature’s candy and a secret weapon for gaining weight. A few Medjool dates add caramel-like sweetness along with fiber, potassium, and a real hit of calories.
Blended with banana and milk, they create a naturally sweet drink with no added sugar. The result is thick, creamy, and deeply satisfying.
This smoothie proves you do not need processed ingredients to bulk up. It is wholesome energy in a glass.
8. Banana Smoothie

Bananas are the foundation of almost every weight-gain smoothie for good reason. They bring carbohydrates, potassium, and a naturally thick texture.
This simple version is ready in five minutes and endlessly adaptable. Toss in nut butter, oats, or protein powder to raise the calories further.
Ripe, spotty bananas blend sweetest and add the most natural sugar. Keep a few in the freezer so you always have a base ready.
9. Chocolate Banana Smoothie

Rich cocoa and sweet banana make this taste like a treat rather than a health drink. The unsweetened cacao powder brings antioxidants without spiking the sugar.
Banana keeps it thick and adds natural energy. Blend with whole milk to push the calorie count higher for weight gain.
It is an easy way to satisfy a chocolate craving productively. Serve it cold for the most milkshake-like result.
10. Avocado Banana Smoothie

Avocado is one of the most calorie-dense fruits you can add to a blender. Its healthy monounsaturated fats make this smoothie incredibly creamy and filling.
Paired with banana, it turns silky and mild without any grassy taste. Half an avocado alone contributes around 160 calories of quality fat.
This is a favorite for anyone wanting clean, nutrient-dense calories. It keeps you full and energized for a long stretch.
11. Avocado Smoothie

If you love the buttery texture of avocado, this smoothie puts it front and center. It is luxuriously thick and loaded with heart-healthy fats.
A touch of sweetener or condensed milk balances the richness beautifully. The fat content makes it one of the most efficient weight-gain options here.
This drink is popular across Southeast Asia as a dessert. That should tell you how indulgent and calorie-rich it really is.
12. Oat Smoothie

Oats turn a light drink into a substantial, meal-worthy smoothie. They deliver complex carbs and soluble fiber that support steady weight gain.
This blend is naturally creamy and keeps you full for hours. Add banana or honey to boost both flavor and calories.
It is an excellent choice for a filling breakfast on the go. The oats give it a comforting, porridge-like body.
13. Strawberry Banana Oatmeal Smoothie

This recipe combines two calorie boosters, banana and oats, with sweet strawberries. The fruit keeps it bright while the oats add lasting body.
It drinks like a balanced breakfast rather than a simple fruit blend. The natural sugars provide quick fuel for active days.
Kids and adults alike enjoy the familiar strawberry-banana pairing. It is an approachable way to sneak in more calories.
14. Blueberry Banana Oatmeal Smoothie

Antioxidant-rich blueberries meet hearty oats and banana in this filling blend. It is a nutrient-dense option that still supports a calorie surplus.
The oats and banana provide the bulk while blueberries add flavor and color. Together they make a smoothie that feels like a full meal.
This one is great for a satisfying start to the morning. Use frozen blueberries for a thicker, frostier texture.
15. Mocha Protein Smoothie

Coffee lovers get an energizing, muscle-building drink in one glass. Espresso and cocoa meet protein for a smoothie that supports lean weight gain.
A scoop of mass gainer protein powder can turn this into a serious calorie bomb. The coffee flavor keeps it feeling like a cafe treat.
It works beautifully as a pre-workout or mid-morning boost. The caffeine and protein combination fuels both training and recovery.
16. Protein Smoothie

Building weight the healthy way means building muscle, and protein is essential. This straightforward recipe delivers a big dose to support that goal.
It pairs your favorite protein powder with fruit and milk for balance. The result fuels muscle repair after strength training.
Sip it within an hour of your workout for the best recovery. Adjust the milk and fruit to hit your target calories.
17. Smoothie With Protein Powder

This is your flexible template for adding protein to any blend. It shows how to layer powder, fruit, and liquid into a smooth, satisfying drink.
The extra protein helps convert your calorie surplus into real muscle. That makes it a cornerstone of any weight-gain plan.
Swap the fruit and milk to keep the flavors fresh each day. Consistency here is what drives steady progress.
18. Greek Yogurt Smoothie

Greek yogurt brings a thick, creamy body along with a hefty protein punch. It naturally adds calories and gut-friendly probiotics to your day.
Use the full-fat variety to maximize the calorie payoff. The tangy flavor pairs well with honey, berries, or banana.
This smoothie supports both muscle growth and healthy digestion. It is a smart, protein-forward choice for gaining weight.
19. Yogurt Smoothie

A classic yogurt smoothie is creamy, refreshing, and easy to load with calories. The yogurt base makes it rich while keeping it drinkable.
Choose whole-milk yogurt and add fruit for natural sweetness. A drizzle of honey nudges the calorie count even higher.
It is gentle on the stomach, which helps if you struggle to eat much. Sip it slowly throughout a busy afternoon.
20. Coconut Milk Smoothie

Full-fat coconut milk is a rich, dairy-free way to add serious calories. A can of full-fat coconut milk brings healthy fats and a tropical creaminess.
It blends into a luscious, satisfying drink that feels indulgent. The fat content makes it ideal for a calorie surplus.
Pair it with mango or pineapple for a beachy flavor. This is a great option for anyone avoiding dairy.
21. Almond Milk Smoothie

Almond milk gives a lighter base that you can build up with dense add-ins. On its own it is modest in calories, so it pairs well with nut butter and oats.
Blend in banana, protein powder, and a spoon of nut butter to bulk it up. That turns a light drink into a proper weight-gain smoothie.
It is a good choice for those who prefer a subtler, nutty base. Reach for the unsweetened kind and control the sugar yourself.
22. Coconut Smoothie

This tropical blend leans on coconut for both flavor and dense calories. Shredded unsweetened coconut flakes add texture and extra fat.
The result is creamy, fragrant, and genuinely filling. Coconut’s natural fats make it a strong ally for weight gain.
Add pineapple or banana for a pina colada feel. It is a vacation in a glass with real nutritional payoff.
23. Chia Seed Smoothie

Chia seeds are tiny but mighty when it comes to nutrition. A spoonful of chia seeds adds fiber, omega-3 fats, and plant protein.
They thicken the smoothie naturally as they absorb liquid. That extra body helps it eat more like a meal.
This is a nutrient-dense way to nudge your calories upward. The seeds also keep you feeling full and satisfied.
24. Flaxseed Smoothie

Flaxseed is another easy add-in that quietly boosts calories and healthy fats. A tablespoon of ground flaxseed brings fiber and omega-3s to the mix.
It blends in smoothly without changing the flavor much. The result is a heartier, more nourishing drink.
Ground flax absorbs better than whole seeds for full benefits. It is a simple upgrade for any weight-gain smoothie.
25. Kefir Smoothie

Kefir is a fermented dairy drink loaded with protein and probiotics. It gives this smoothie a tangy flavor and a creamy, drinkable body.
The probiotics support digestion, which helps you absorb more of what you eat. Better absorption matters when your goal is steady weight gain.
Blend it with fruit and honey to balance the tang. It is a gut-friendly base with real nutritional depth.
26. Banana Mango Smoothie

Sweet mango and creamy banana make this a naturally calorie-rich tropical treat. Both fruits are high in carbohydrates that fuel your day.
The combination is thick, sunny, and irresistibly smooth. Use whole milk or coconut milk to raise the calories further.
It is a refreshing option that still supports weight gain. The bright flavor makes it easy to drink every single day.
27. Vanilla Smoothie

Simple and comforting, this vanilla blend tastes like a soft-serve milkshake. It is an easy base to build calories on top of.
Add vanilla protein powder, nut butter, or oats to bulk it up. The mellow flavor works with almost any add-in you choose.
Kids and picky eaters find it especially appealing. That makes it a reliable pick when appetite is a challenge.
28. Chocolate Smoothie

Rich and indulgent, this chocolate smoothie feels like a treat you earn. Cocoa delivers deep flavor while milk and add-ins carry the calories.
Blend in banana, peanut butter, or protein to make it a weight-gain powerhouse. The chocolate flavor hides any add-ins seamlessly.
It is the perfect way to satisfy a sweet tooth with purpose. Serve it icy cold for the best texture.
29. Breakfast Smoothie

Designed to fuel your morning, this smoothie packs a balanced load of calories. It combines fruit, protein, and healthy fats into one glass.
Sipping breakfast is ideal when you do not feel like eating early. The liquid calories go down easily and keep you going.
Add oats or nut butter to make it even more substantial. It sets a strong, calorie-positive tone for the whole day.
30. Coffee Smoothie

This drink merges your morning caffeine with a calorie-rich breakfast. Coffee, milk, and banana blend into a smooth, energizing start.
Add a scoop of protein powder or nut butter to raise the calories. The coffee flavor keeps it feeling like a cafe indulgence.
It is perfect for anyone who wants energy and nutrition together. Use cold brew for the smoothest, least bitter result.
31. Acai Smoothie

Acai brings deep berry flavor and a load of antioxidants to the blender. A spoonful of acai powder makes this vibrant and nutrient-dense.
Blend it with banana and granola toppings for extra calories. The thick, spoonable texture eats like a filling bowl.
It is a colorful, energizing way to support weight gain. Top it generously to push the calorie count higher.
32. Fig Smoothie

Figs are naturally sweet and surprisingly calorie-dense, especially when dried. They bring fiber, natural sugars, and a honeyed depth to this blend.
Combined with milk and yogurt, they create a rich, satisfying drink. The result feels like a treat while quietly adding calories.
This is a lovely, less-common option for gaining weight. Fresh or dried figs both work beautifully here.
Frequently Asked Questions
1. Are smoothies good for weight gain?
Yes, smoothies are excellent for weight gain because they let you pack many calories into an easy-to-drink form. Adding nut butter, oats, whole milk, and protein powder turns a light drink into a calorie-dense meal.
2. What should I put in a smoothie to gain weight?
Focus on calorie-dense ingredients like banana, peanut butter, avocado, oats, dates, and full-fat dairy. A scoop of protein powder and a spoon of seeds also boost the calories and nutrients.
3. How many calories should a weight-gain smoothie have?
A good weight-gain smoothie usually falls between 500 and 800 calories. You can adjust the amount of nut butter, oats, and milk to hit your personal target.
4. When is the best time to drink a smoothie for weight gain?
Many people drink one for breakfast or right after a workout to support muscle recovery. You can also sip one between meals as an extra calorie source without ruining your appetite.
5. Can I drink a weight-gain smoothie every day?
Yes, a daily smoothie is a sustainable way to maintain a consistent calorie surplus. Rotate the flavors and ingredients so you get a variety of nutrients throughout the week.
6. Is protein powder necessary for a weight-gain smoothie?
Protein powder is not required, but it helps turn extra calories into lean muscle. You can also get protein from Greek yogurt, milk, nut butter, and seeds if you prefer whole foods.




