Weight Gainer Smoothie being poured into a mason jar with a sliced banana in the background

Weight Gainer Smoothie

This weight gainer smoothie is perfect for people who want to gain weight by increasing their daily calories in a healthy way. This weight gain smoothie has a ton of protein and healthy fats.

How to gain weight

The most important thing to gaining weight is creating a calorie surplus, meaning you eat more calories than your body consumes.

If you want to increase your weight slowly aim for 300-500 calories more then you burn each day. This should roughly translate to 0.7-1 pounds gained per week.

If you want to increase your weight fast, aim for 700-1000 calories more then you burn each day. This should roughly translate to 1.7-2 pounds gained per week.

To find out your daily maintenance calorie intake try this calorie calculator. This will give you a rough estimation of your maintenance level.

Note: Make sure to exercise regularly when on a weight gain diet to avoid putting on lots of fat.

How to get the most out of this weight gain smoothie

The best way to add this weigh gainer smoothie into your diet is to add it as your 4th or 5th meal. This way it will help you get a calorie surplus as you will still be having breakfast, lunch and dinner.

The best time to have this is between breakfast and lunch, lunch and dinner or after a workout.

It’s great after a high intensity workout as it has plenty of protein to rebuild muscles, carbohydrates to replenish glycogen and contains electrolytes and sodium.

What is Weight Gainer?

Weight gainer is a protein powder that has high amounts of proteins and carbohydrates. Some weight gainers have creatine in which has a number of different benefits for gaining muscle.

For more information about creatine and the benefits of using it whilst working out check here

Note: When looking for a weight gainer powder make sure to find one that has long lasting carbohydrates and is not packed with sugar. This will help maintain good energy levels throughout the day.

Nutrition and Calories

With Weight Gainer

This weight gainer smoothie contains approximately 684 calories, 39g protein, 71.5g carbohydrates and 29g of fat.

Without Weight gain

Without the weight gainer this smoothie contains approximately 490 calories, 19.4g protein, 46.9g carbohydrates and 27.7g fat.

How to make this recipe Vegan

To make this weight gain shake vegan, swap out whole milk with soya milk. Soya milk is 10 calories less than whole milk per 100ml.

Its a better choice then almond milk as almond milk is low caloried containing 51 calories less per 100ml than whole milk.

This Recipes Dietary Needs

  • Gluten Free
  • Vegetarian
  • Can be made Vegan (check post)

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Weight Gainer Smoothie being poured into a mason jar with a sliced banana in the background

Weight Gainer Smoothie

Jack Slobodian
This weight gainer smoothie is perfect for people who want to gain weight by increasing their daily calories in a healthy way. This weight gain smoothie has a ton of protein and healthy fats.
4.92 from 12 votes
Prep Time 2 mins
Cook Time 0 mins
Total Time 2 mins
Course Drinks
Cuisine Drinks, Shakes, Smoothies
Servings 1 Person
Calories 684 kcal




  • Add all the ingredients into a blender, milk being the first. Blend until smooth and serve.


Calories: 684kcalCarbohydrates: 71.1gProtein: 39gFat: 29gSaturated Fat: 9.9gCholesterol: 69mgSodium: 534mgPotassium: 1282mgFiber: 8.6gSugar: 36.9gVitamin A: 467IUCalcium: 477mgIron: 10mg
Keyword Weight Gainer Shake, Weight Gainer Smoothie
Tried this recipe?Let us know how it was!


    • Jack Slobodian

      Hey Shakir!

      I assume you’re talking about protein powders that are the vast majority protein instead of weight gainers. Weight gainers tend to be around 30% protein.

      If this is the case, I’ll recommend adding 20 grams instead of 50 grams. 50 grams of a concentrated protein powder would be too much protein in one sitting which can lead to adverse effects.

      If you would like to work out your micro’s, a nutrition label is calculated without adding protein powder in the blog post.

      I hope this helps, and if you have any more questions, just ask!


    • Jack Slobodian

      Hey Celeste,

      There isn’t a rule on this because it also depends on your diet. You can use this recipe in many ways. An after workout shake, an additional meal shake, a calorie/protein catchup shake etc.

      I recommend adding this weight gainer shake as a daily 4th or 5th meal to gain weight.

      So if your question was can this recipe be drank once a day, the answer is yes.

      I hope this helped,

    • Jack Slobodian

      Hey Beckett,

      Thank you for the feedback, and I’m happy you enjoyed it!

      This depends on a couple of factors. This kid’s age, the type of weight gainer/protein powder used, and the quantity.

      For young kids 5-12

      This recipe is suitable without a weight gainer/protein powder in smaller quantities. A suitable amount for a smaller 5-8 year old would be 100ml and for an 8-12 year old 200mls.

      This recipe provides a lot of healthy nutrition without the protein powder like healthy fats, protein, unrefined sugar, vitamins and minerals like calcium and potassium.

      I suggest not using the protein powder because it’s unnecessary for young kids to consume that much additional protein powder, and some powders can have other added ingredients.

      Older Kids 13-16

      This recipe is suitable with a kid-friendly protein powder that doesn’t contain excessive amounts of creatine.

      Older Teenagers 16 – 19

      This recipe is suitable for older teenagers, just make sure to use a good quality weight gainer/protein powder.

      I hope this was helpful and somewhat answered your question. If you have any more just let me know.


  • Kierstin Dykes

    4 stars
    I’m a runner and I’ve just started training in the summer, this is gonna be perfect for me! thansk for the tips!

      • Eunice

        I haven’t tried it but I will definitely give it a good try but I would love to know if this weight gainer will add to ones appetite and what good effect does it has on the female body aside from the weight gain

        • Jack Slobodian

          Hey Eunice,

          I hope you enjoy/enjoyed it if you’ve already made it! This weight gainer shake is a lot less filling per calorie compared to food, so it will help keep your appetite up. It has a lot of essential vitamins and minerals too, that give you a multitude of different health benefits for both female and male bodies.

          If you have any more questions just ask away!


      • emily

        Hi, i’m looking to gain weight as i am a naturally underweight person and am wanting to have a bit more fat on my body through a healthy weight gain. are these smoothies suitable for me as well as of course my diet or is it recommended more for people who are fitness oriented and would like to bulk up??

        • Jack Slobodian

          Hey Emily,

          These smoothies are perfectly acceptable for exercisers and non exercisers. They are very high in protein so I would recommend having one every other day if you didn’t workout.

          It’s not recommended to consume very high amounts of protein unless you have a high muscle mass or are exercising at least occasionally. This is because extra protein is not used as efficiently as other nutritions, and too much can lead to some adverse effects.

          I hope this helped. If you have anymore questions feel free to ask!


      • Arthur Joffe


        I am trying your smoothie but would like to increase cals as I lost some weight
        Can I add nuts, and chocolate spread ?
        I would like about 1000 cals if possible after training

        Can I replace the powder with something else?


        • Jackslobodian

          Hi Arthur,

          I wouldn’t suggest adding too many calories into your post training shake. Its much better to have the smoothie asp post workout, then eat a meal or snack 30 minutes later. This is because the more calories and fat you consume at once, the slower your body will absorb the protein and carbs, which is something you want ASP after training for muscle growth/repair.

          If you want to increase the calories, try adding an extra tablespoon of peanut butter (extra 100 calories) and a larger banana (extra 15-31 calories). This is way better nutritionally than chocolate spread.

          If you need to add serious calories to your diet, try adding this smoothie to your diet twice a day on your training days with an extra tbsp of peanut butter and banana, you will be adding around 1630 calories a day to your diet. Without the protien powder this will be around 1242 calories a day.

          I hope this helped, if you have any more questions just ask away!


        • Hamza mubarak

          5 stars
          I did try your smoothie and its definitely good,but I wanted to ask if i added oats and honey to add more calories and taste (because the peanut butter i use is unflavoured).

          • Jack Slobodian

            Hey Hamza,

            Sorry for this late reply! And thank you, I’m happy you like it!

            Are you using an unflavoured weight gain powder too? A lot of flavours comes from the type of protein powder you use. I love this shake with a chocolate flavoured weight gainer powder!

            As for honey and oats, I haven’t personally tried them. I don’t see why not try a bit of honey. Just keep in mind when you add oats you’ll need to add extra milk or else the shake will become very thick.

            Let me know how it goes.


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