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Protein powders are great to add to shakes or recipes to boost your protein intake throughout the day. Protein powder also has a lot of benefits, like helping with weight management and muscle growth. But not all the protein powders are created equal. Many contain hidden carbs, sugars, and calories – detrimental to your weight-loss efforts.

So, if you’re looking for the best low-calorie protein powders on the market right now, this list is for you!

Everything on this list has less than 130 calories per serving. In addition, each protein powder contains no more than 2 grams of carbohydrates and 2 grams of fat.

Who Should Use Low-Calorie Protein Powder?

Diet protein powders are often marketed only to women, but that’s just marketing. The protein powder with a high protein content per calorie value is suitable for everyone.

  1. If you’re on a tight calorie-controlled diet.
  2. Ketogenic or very low-calorie dieters.
  3. You!

1.      Optimum Nutrition Platinum Hydro Whey

This is another product that comes with a protein rate of less than 90%. This means you get about 87% protein per calorie.

We’re unsure if this is a lean whey protein powder with a larger serving size of 39 grams and 140 calories. However, many other products on the market undoubtedly provide better protein concentration.

This product also contains 3 grams of carbohydrates per serving and 1 gram of fat. The vitamin and mineral content are lower than Legion protein powder too!

2.      Bulk Supplements Whey Protein Isolate

Right off the bat, this product ranks first, with 115 calories per serving – of which 27 grams is a protein.

This works out to get a whopping 94% protein per calorie. This isn’t the highest we’ve ever seen, but it does offer far more value than the vehicles we’ve looked at before. Bulk supplements win.

The fat and carbohydrate content are both less than 1 gram. This is why we see such a low-fat product and a lot of protein. The vitamin and mineral content is still not great, but there’s only so much room in 30 grams!

3.      ON Gold Standard 100% Whey

While Platinum Hydrowhey had about 86% protein, ON’s “Gold Standard” whey was just 80%. As a result, this is not an effective dietary protein supplement – especially when compared to options without whey.

With over a gram of fat and 3 grams of carbs per serving containing 120 calories, you’re missing out on some essentials. This is 3g less protein than whey supplements bulk wholesale, and we were still disappointed with ON’s approach to protein concentration!

Low calories protein powder


Nutritional Info for two scoops (20g): 70 Calories

Grass-fed and grass-fed collagen protein powder are made with hydrolyzed collagen with 80mg of Hyaluronic Acid and 90mg of Vitamin C.

In addition to the same benefits as whey protein powder, this collagen protein powder also supports healthy skin, hair, nails, and joints and hydrates your skin.


Nutritional Info for one scoop (33g): 80 Calories

Now Sports Pea Protein Powder is one of the market’s best low-calorie vegan protein powders.

It’s made with non-GMO plant-based pea protein isolate, which is naturally high in protein and rich in Branched Chain Amino Acids (BCAAs) to aid muscle growth, reduce fatigue, and ease muscle soreness.


Nutritional Info for one scoop (22g): 90 Calories

Bone broth protein powder is a low-calorie alternative to whey protein for the paleo diet. It is the best option if you usually have stomach discomfort or difficulty digesting whey protein.

This protein powder from Left Coast Performance is made with 100% grass-fed bone-in beef and provides 21 grams of clean protein per scoop. Plus, it contains two types of collagen to promote healthy joints, skin, hair, and nails.

What makes the best low-calorie protein powder?

We’ll discuss a few factors – here’s why they matter.

1.      Protein per calorie

This is what makes it a low-calorie protein powder!

It would be easy to call any product a “diet” simply by reducing the serving size or decreasing the protein content. This would reduce calories, but you wouldn’t get any real benefit from it.

This is why protein per calorie is a better measure. A higher percentage means a better product – you’ll get all the benefits without the calories.

Remember that protein has four calories per gram: a strict limit to how weak a protein powder can be!

2. Value

Often, supplement companies mark up their diet products.

This makes value a critical consideration for low-calorie protein powders: You don’t want to pay a massive premium for a less fat product.

We’ll discuss this in dollars per protein and the total cost of a standard product. Want the best price plus the best protein result?