My Favorite High Calorie Protein Shake – For Fast Weight Gain

best weight gain shake

The key to putting on weight is getting in extra calories and protein to your normal diet. According to the Mayo Clinic,  in order to put on a pound of weight in a week you need to take in 500 extra calories each day.

Protein shakes are a great way to reach your daily calorie and protein goals, especially if you have a fast metabolism. The problem is most people make high calorie weight gain shakes that taste awful. I’m talking about having to gulp down with their nose plugged bad. Wouldn’t it be amazing to have a healthy drink that tasted incredible?

Your search for the best tasting high calorie weight gainer is over. It’s easy to make, tastes delicious, and has 700 calories and 69 grams of protein. I made one of these every morning during my 20 pounds weight gain journey and it was the highlight of my day.

high calorie weight gain shake

How to Make It

Pour your choice of milk into the blender container. I have been using almond milk recently so I will pour 6-8 ounces in.

Take two frozen bananas and take the peel off carefully with a knife. *TIP* Let bananas sit for a minute so they soften just a bit. It will make them easier to cleanly cut off the peels.

Chop frozen bananas and put them in with the milk.

Add two heaping scoops of Gold Standard Chocolate Whey.

Add two spoonfuls of peanut butter

Blend for 20 seconds and enjoy the best tasting weight gain shake you will ever have!

Nutritional Breakdown


With 700 calories, 69 grams of protein and 74 grams of carbohydrates, this weight gain shake will help you pack on pounds while making your mouth water just thinking about it.

If you are underweight and struggle to put on pounds, give this shake a try. This is the perfect compliment to any weight gain diet and will help you figure out how to gain weight fast.

If you are looking for tasty weight gain recipes, workouts and inspiration for your weight gain journey check out my Pinterest page.


Please see appendix for a more detailed explanation of the blenders I suggest. I also explain why I am such a believer in the Gold Standard Chocolate whey.


Blender – The key to a good blender is one that is big enough to hold your protein shake, powerful enough to blend frozen bananas, and easy to use. I have been making this weight gain shake for years and have tried it using many different blenders. Here is a list of my personal favorites ranked by price:

Magic Bullet – ($35) This is a perfect starter blender because of its price point. If you are just starting out on your weight gain journey, pick this up and get started right away.

Nutribullet NBR –  ($59.99) My favorite part about this Nutribullet is how the container turn into your cup after you are finished blending. Nowhere near as power as the Vitamix, but it gets the job done quickly and effectively.

Vitamix E310 Explorian – ($299.99) If you haven’t heard of Vitamix before, it is the Cadillac of blenders. Besides longevity, the Vitamix is great because it pulverizes better other blenders cannot because of the powerful motor. This means no more seeds in your shakes. If you make protein shakes on a daily basis and want a blender that might outlive you, pick this up.

Whey Protein – I have experimented with dozens of brands and flavors of protein powders over the years. You want a flavor that tastes good, but not overly sweet. You want the product to contain only the essential nutrients, not junk you don’t need. Here is the only whey protein I recommend for this weight gain shake:

  1. Gold Standard Chocolate – This is by far the best whey protein I have ever tested with this protein drink. It mixes perfectly together with the peanut butter, bananas, and milk to create a truly insanely delicious shake. Beyond the taste, it comes with 24 grams of protein and 5.5 grams of BCAAs and nothing you don’t need.



Vicki Bolen

about 2 years ago

I appreciate this info...I have Crohns disease and it is very hard to gain weight even on medication....this nutrition drinks k sounds great often ca. I drink this daily....thank you


Tony Briggs

about 2 years ago

Hi Vicki, Thank you so much for reading my post! I know it can be very difficult to gain weight, especially on medication for a serious illness. This weight gain shake worked well for me and my needs, but I would not suggest anything to you until you checked with your healthcare provider. Best of luck! Tony



about 2 years ago

Which chocolate option do you use exactly? There’s a few chocolate options. Thanks!


Tony Briggs

about 2 years ago

Hi Malinda, I mainly used the Milk Chocolate version of the whey protein. It is a not quite as strong as the Dark Chocolate version and I think it tastes the best. I think you should go with your gut on whether you like Dark or Milk Chocolate. Both will taste really good with this shake. Thanks, Tony


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