9 Best Low-Calorie Protein Powders (2020) | #1 For Weight Loss

Low-calorie protein powders are ideal for individuals from various walks of life. Whether you’re looking for a good option to follow your ketogenic diet, or are strictly trying to lose weight, you’ll find that it is beneficial for any fitness goal.

Studies show that low-calorie protein powders are the most effective protein supplement when it comes to weight loss or depend on your personal body goals.

The key to losing weight effectively and in a healthy manner is to consume fewer calories than your body is able to burn.

Review Summary:

  • 1. Transparent Lab 100% Grass-Fed – #1 Best Tasting (Lowest in Calories)l
  • 2. Performance Lab
  • 3. MyProtein
  • 4. Perfect Keto
  • 5. ISOPURE®
  • 6. Dymatize Elite
  • 7. BulkSupplements Isolate 90%
  • 9. VEGA ONE®

Best Low-Calorie Protein Powder (List for 2020)

There are many reasons why you should choose a low-calorie protein powder. The main reason would be for your health.

But in all honesty, I ask you this: why not? There are many options in the market that offer source that doesn’t taste horrible.

If the taste is the only thing you have to worry about, then there’s virtually no reason for you not to choose a zero-calorie protein powder.

If you’re worried about the quality of protein and nutrients that come with your protein powder, it’s not an issue either. Some of the supplements that I recommend the most are low in calories and offer the best results, whatever your fitness goals may be.

I took the time to test several products in the market that claim to be low in calories. I was able to narrow it down to nine brands.

Each of which delivers a good amount of protein product, nutrients, and unique benefits in their own right. Keep reading to find the best choice for you.

1. Transparent Lab 100% Grass-Fed – Best Tasting Lowest Calorie Powder

Grass Fed 100%

Transparent Labs has fought to become a namesake in the health and supplements industry. This delicious whey protein isolate powder comes in inventive flavors and boasts one of the highest protein by weight ratios in the market.

But more than that, it’s naturally flavored and totally free from any artificial additives. It is sourced responsibly from hormone-free dairy cows and has passed the highest levels of food safety testing set in the industry.

Here’s why you’ll like it:

High-Quality Protein – this Transparent Labs contains 28 g. of protein per portion. That’s higher than the average yield even by whey protein standards. This allows your best protein powder to be effective for a multitude of fitness goals like fat loss or muscle building.

  • 28 g. of protein per portion
  • 120 calories per serving
  • No fat
  • 2 g. of carbohydrates per serving
  • 10% of your daily Calcium value
  • 2% of your daily Iron value
  • 2% of your daily Potassium value
  • Great flavor options
  • Mixes well
  • A bit expensive
  • Might cause bloating

Summary: Transparent Labs has grown to become one of the most respected brand names in the supplement market. This product is ideal if you’re looking for protein that tastes great on its own, provides a good source of protein and contains very little fat, calories and carbohydrates per serving. That said, it does get quite expensive and it might cause bloating given that it’s whey protein.


2. Performance Lab Sport – Best Vegan Protein Powder

Performance Lab Protein

Next on our list is Performance Lab SPORT. This brown rice protein powder is sourced organically and features one of the leanest and cleanest formulations in the market.

But more than that, it’s the only patented product for athletic use. It’s tested for banned substances and is safe to use for a variety of strict diets.

Here’s why you’ll like it:

Patented Sport Protein Oryzatein – this Performance Lab SPORT is made using a low heat process and natural enzymes. It’s the only rice protein that rivals whey protein when it comes to effectiveness in building muscle and contains leucine that absorbs at least 30% faster into your body.

  • Naturally sweetened using ingredients like organic cocoa, vanilla bean, monk fruit, and cinnamon.
  • No synthetic or artificial additives
  • Does not contain caffeine
  • No soy and banned substances
  • 20 g. of protein per serving
  • Only 100 calories per serving
  • The himalayan pink salt is a bit confusing
  • Quite expensive

Summary: Aside from the fact that the presence of Himalayan Pink Salt can be quite confusing and unnecessary, this is also admittedly quite expensive. However, it’s lean and clean and free from any unwanted substances. It’s ideal for using even before an athletic event since it’s free from any banned substances that could get you in trouble.


3. MyProtein Impact – Best Value

Impact Whey

MyProtein Impact Whey Isolate caught my eye for its sheer value. It’s reasonably priced and is available in bulk sizes, which allows you to get more value out of your purchase.

What’s more, it comes in ten flavor options, including a delicious salted caramel flavor and many unflavored options that allow you to add it into your cooking or other food without worrying about the taste affecting it.

Here’s why you’ll like it:

Labdoor Certified – this MyProtein is certified by Labdoor as one of the best supplements in the market. This means you can expect your best protein powder to have undergone an extensive quality assurance process, making sure you’re only getting the best with every purchase.

  • 90% of the high protein content
  • 22 g. of protein per 1 portion
  • No fat
  • Less than 2 g. of carbs
  • Multitude of flavor options
  • Mixes well with milk or water alone
  • Contains milk and soy
  • Contains artificial flavoring

Summary: If you want to get the best value for your money, I highly recommend this product. It’s not only Labdoor certified, but it also contains a good source of protein with a 90% high protein content. That said, it does contain certain allergens and artificial flavorings. My best suggestion would be to opt for the unflavored option to get the most out of it.


4. Perfect Keto Whey Protein – Best for Keto Dieters

Whey Perfect Keto

Perfect Keto Whey Protein is formulated specifically for those following a Keto diet. It comes in three flavor options: chocolate, vanilla, and unflavored, which gives you a good enough range of flavor choices without being too constricting.

Moreover, what’s best about this Perfect Keto is that you don’t have to worry about it knocking you off ketosis. It can be an excellent supplement for your meals, or it can also act as a meal replacement if you’re adding it to your shakes.

Here’s why you’ll like it:

Great Benefits and Ingredients – this Perfect Keto contains MCTs, which improve your focus and helps curb hunger. This means you’ll feel satiated longer, and you don’t have to worry about getting knocked off ketosis. Moreover, it’s made from isolate protein, which reduces the lactose content, so you don’t have to worry about it interfering with your lactose intolerance. You can find out more about keto protein powders here.

  • Great source of protein for weight loss
  • Ideal for those who suffer from mild lactose intolerance
  • Improves your focus
  • Help keep you full longer
  • Does not knock you off ketosis
  • Good flavor options
  • Naturally flavored
  • Has quite a strong stevia taste

Summary: If you aren’t a fan of stevia, it would take quite a bit to mask the taste that stevia leaves in Perfect Keto. That said, if you can take the sweetness of stevia, it is ideal for those days where you need a little extra push to focus on work and curb your hunger or cravings for a few more hours.



Zero Carb Isopure

Isopure is a great choice if you’re looking for a whey protein powder with virtually no guilt. I highly recommend this Isopure for its carbohydrate content—or lack thereof, which makes it an excellent protein-rich source without the guilt. Moreover, it contains naturally occurring BCAAs and added vitamins with nothing unnecessary insight.

Here’s why you’ll like it:

Lactose and Guilt-Free – This Isopure is lactose-free and contains nothing your body would be ashamed of taking. Moreover, it contains a good source of protein and zero additives that you have to worry about.

  • 25 grams of protein per serving
  • No carbohydrates
  • Contains 4 grams of L-Glutamine per serving
  • 5 grams of BCAAs per serving
  • Contains a blend of added minerals and vitamins
  • Lactose-free
  • Gluten-free
  • Contains soy
  • Chalky texture
  • Contains the artificial sweeteners such as sucralose

Summary: This Isopure is not only clean and a top source of protein and added nutrients, but it’s also packed with 5 grams of BCAAs per serving. This makes it ideal for anyone who wants to build muscle or lose fat fast. However, it does contain soy, artificial sweeteners and has a somewhat chalky texture.


6. Dymatize Elite

Dymatize Elite Protein

Unlike other whey products in the market, you don’t have to worry about this one causing gassiness or bloating. It’s scientifically proven to be easily digestible for your body and easily absorbed into your body as well. This means you’ll see quicker results and fewer drawbacks.

Here’s why you’ll like it:

High-Quality Whey Protein – this Dymatize Elite contains 25 grams of pure whey protein that is fast-digesting and quick-absorbing. This means you’re likely to see results more quickly, and you don’t have to worry about feeling like a gas bubble.

  • 25 grams of protein per serving
  • 5.5 grams of BCAAs per serving
  • Ideal for muscle recovery
  • 2.7 grams of Leucine that activates your muscles
  • Easily digestible
  • Good flavor options and size options
  • Does not taste good on its own

Summary: Despite all the positive things I can say about this brand, the only thing you really need to watch out for is its taste. It does not taste good on its own. This might affect its convenience for you, but if you’re willing to mix it into a shake every day, then enjoy the fast-absorbing benefits of this top quality whey product.


7. BulkSupplements Isolate 90% – Most Affordable

Whey Protein Isolate Bulksupplements

I have to commend BulkSupplements for constantly putting out high-quality protein sources for affordable prices. This BulkSupplements contains 90% protein content.

However, it does contain 5% lactose. I would suggest you take it if you’re looking for a highly affordable protein without skimping on the quality and if you’re not overly sensitive to lactose.

Here’s why you’ll like it:

Affordable, Quality Protein – this BulkSupplements is chock full of BCAAs and contains a 90% protein. That’s quite impressive especially considering its price. It’s also soy-free, which adds to its overall value.

  • 90% protein
  • 115 calories per serving
  • 27 grams of protein per portion
  • Contains calcium
  • Contains potassium
  • Contains magnesium
  • Affordable
  • Does not mix well
  • Container could be improved

Summary: This BulkSupplements is ideal for anyone who wants to get a top quality protein source with added nutrients without having to break the bank. It contains 27 grams of protein-rich along with calcium, potassium and magnesium. That said, it does not mix well on its own and the container needs improvement.


8. IDEALLEAN – Top For Women

Top For Women

Ideallean is ideal for any woman who wants to reach their full potential. This IDEALLEAN contains 100 calories, 20 grams of protein per 1 portion, no fat, very little sugar, and only 3 grams of carbs per serving. It’s specially formulated to meet the needs of a woman in a market heavily dominated by male supplements.

Here’s why you’ll like it:

Highly Convenient – for any modern woman who needs to stay on the go, yet fully nourished, it gives you a convenient solution. It’s an all-in-one meal replacement that’s easy to shake, mix, and blend together with other beverages to keep you full and empowered.

  • 20 grams of protein per portion
  • 100 grams of calories per serving
  • Delicious and smooth taste
  • Does not mix well with ice

Summary: This Ideallean is ideal for anyone who wants a highly convenient way to take their daily protein shakes. That said, it does not mix well with ice. So I recommend you dissolve it in some water before adding ice to it.



Vega One

This organic all-in-one is ideal if you’re looking for a good meal replacement without any hassle. It easily mises with water, and you’re good to go. It’s full of organic and real plant-based ingredients, which adds to its overall nutrition.

Here’s why you’ll like it:

Easy to Digest – this VEGA ONE® contains 4 to 6 grams of dietary fibers per serving. This means it’s easy to digest and won’t cause you any stomach distress.

  • 20 grams of protein per portion
  • 2 billion CFUS Probiotics
  • 500 milligrams Omega-3 ALAs
  • 6 g fiber
  • Turns your drink green or gray

Summary: It is an ideal solution for anyone who wants  a top quality product from well-known brand. It’s also paleo-friendly protein (more on this here) It’s easy to grab and go in the morning or at any time of day when you really don’t want to be bothered with complicated blends. However, it does turn your beverages into a green or gray color.


How To Use Low-Calorie Protein Powder For Weight Loss / Is It Safe?

Using low-calorie supplementation for losing weight is perfectly safe. Choosing low-calorie over other brands would help you get your daily dose of lean protein without having to worry about your calorie intake.

How to Use

Which type of protein is best for weight loss? In my professional opinion, it’s important to keep three things in mind when you’re trying to lose fat using supplements:

  • Make sure you have a balanced diet – not all products are created equal. You might think that all protein shakes will help you effectively lose fat. And in some cases, this is true. However, you need to keep in mind that if you’re using a pure protein a meal replacement, it needs to offer you balanced nutrition and not just designer protein without any other minerals, vitamins, and added nutrition.
  • Follow a regulated exercise routine – it’s important to keep yourself healthy by exercising. This doesn’t necessarily mean you have to head to the gym or go for a run every day. But it could be helpful to have some form of exercise even at home daily to help you lose fat faster.
  • Stack different supplements – contrary to popular belief, stacked supplements aren’t just for building muscle mass. While stacking supplements is popular among weightlifters and bodybuilders, there are also plenty of supplements you can stack together to help you burn fat faster.

Summary: These are a good meal replacement or supplement to use when you’re trying to watch your cal. intake and lose fat in a healthy manner. To maximize the weight loss effects of your low cal. protein powder, make sure you buy something that is well-balanced in nutrition. You also need to follow a regular exercise routine and you can also stack supplements to help you burn through fat faster.

Benefits from Taking Low-Calorie Protein Powders

In general, it highly beneficial to your health. Not only do they help you achieve your fitness goals, but they also assist with your daily protein consumption. This makes it ideal for anyone who has a busy schedule or if you think you’re not getting enough protein from solid food.

Take a look at what makes low-calorie protein powders extra beneficial:

  • Allows you to watch your calories – These are perfect for anyone who wants to watch their calorie intake. This makes it easier for you to take your meals with as little to no calories as possible.
  • These are often sugar-free or low in sugar – if you’re worried about harmful sugars interfering with your health and diet, low-cal. powders are an ideal choice for you. Most of the time, it contains little to no added sugar. That said, the same effect can be achieved by using artificial sugars. Make sure you’re careful and don’t get a product that uses artificial sugars.
  • Faster and healthier weight loss results – if you’re aiming specifically for fat loss, these are an excellent supplement or meal replacement. It is low-cal. quality facilitates fat loss and allows your body to burn through fat faster.

Summary: These are ideal for anyone who is actively trying to lose weight or watch their cal. intake. This allows you to more easily monitor the amount of calories you take per meal without any issues. Moreover, it usually contains very little to no sugars. If you drink some pre-workout or post workout, the branched-chain amino acids can give your gym session a boost by helping to target energy directly to your muscles. However, you need to be careful of purchasing a “sugar-free” protein powder that contains artificial sugars.

User Reviews, What Customers are Saying?

We get asked this question quite a lot: what do customers have to say about low-calorie protein powders? To give you the most accurate answer, we talked to several acquaintances and professionals who use supplementation in their daily life.

User Reviews

I’ve also added in some of the things I’ve heard from my clients in the past regarding low-calorie protein powders to help you make a more informed decision.

  • It is ideal for anyone who is following a ketogenic lifestyle. When you’re following a strict keto diet, it can be difficult to plan out meals or find supplements that won’t knock you out of ketosis. This supplementation often contains very little to no calories. This makes it ideal if you’re trying to force your body to burn more fat than calories.
  • It helps you lose fat fast. Of course, it needs to be taken in conjunction with a healthy lifestyle and at least a minimal form of exercise. Unlike taking a full meal full of calories, taking low-calorie protein powder as a meal replacement is not only easier for your body to digest, but it also helps you lose fat more easily. The key is to burn more calories than you’re taking in.
  • Choose unflavored when you can. Unflavored protein powders will contain as little additives as possible. Moreover, they’re also more flexible. They offer a variety of uses. This means you don’t have to stick to the same flavor profiles or recipes when you’re making a protein smoothie. They can also be added into your cooking or baking if you don’t want to take them separately.
  • This supplementation helps you curb your cravings and appetite. This helps you eat healthier and control your diet better.
  • Make sure you buy from a reputable brand. This doesn’t always mean you have to purchase the most expensive protein supplement or most well-known protein powder out there. Just make sure you’re buying from a well-trusted brand that puts out all of the information you need.

Where To Buy

There are many choices when it comes to purchasing any protein powder. However, if you want to get truly premium and top quality products, it’s important to purchase from reputable retailers. It’s also a good idea to purchase directly from the company’s website.

Some popular choices are Walmart, GNC, and Amazon. I’d suggest you exercise caution when purchasing from retailers like Amazon as many unauthorized sellers peddle products that are not exactly as advertised.

Where to Buy

Here are some key points you need to keep in mind:

  • Purchase from legitimate retailers. If you’re purchasing from Amazon, make sure you’re buying from the company’s official retailer or store.
  • Make sure there is a good return/refund policy in place. Shipping mishaps happen. You shouldn’t have to be stuck with an expired or tampered with the product just because it was mishandled.
  • One way to make sure you’re buying a genuine product is to purchase directly from the company’s official website.
  • Keep your preferences in mind. Whether you’re vegan or following a keto diet, you should always keep your preferences in mind. You can easily choose a plant-based protein powder over the more popular whey brands in the market. The same can be said flavor-wise. If you want something that tastes like brownies, then go for it. Just make sure it’s naturally flavored.

Final Words

Low-calorie products are something I can recommend to anyone who wants to live a healthier lifestyle, no matter what your fitness goals are. Over the course of my extensive work with individuals of every kind, I’ve found that the best and most reliable protein powders are often low in cal.

Of course, this means positive things for those of you who would like to keep their figures in check. Or perhaps you’re trying to lose weight or to get muscle growth.

While cal. counting is nothing new, the key to success is to burn more calories than you take. These products, as they are offering a good supplemental option for anyone who is restricting their calorie intake.

What’s more, it’s also ideal for anyone who is following a ketogenic lifestyle or if you have underlying health issues. That’s why I’ve taken the time to test numerous brands that claim to have low-calorie content. Of hundreds of brands, I was able to narrow it down to nine of the best choices in the market.

Truth be told, any of the above-mentioned products are an excellent choice for anyone. However, I found that Transparent Lab’s 100% Grass Fed Whey is the best overall choice.

Best price grass fed

Not only does this supplement contain zero fat and only 1 gram of carbohydrates. But more than that, we commend the wide flavor options that Transparent Labs has put out. These flavors are not only delicious in their own right, but they’re also low in calorie content and flavored using all-natural ingredients like cocoa and vanilla beans.

Another brand I highly recommend is Performance Lab Sport. This is an excellent option for anyone who is looking for a plant-based protein powder that delivers results to rival that of whey protein.

It’s made from organic brown rice protein and is patented for athletic use. It’s proven to be just as effective as whey in building muscle, and it enhances your overall performance at the gym. It’s also naturally flavored, so you aren’t putting anything harmful or disgusting into your body.

Overall, following a strict low-calorie diet doesn’t mean you have to miss out on anything when it comes to the best protein powders. There are many choices in the market, and we’re confident that you’ll find the right one from the above-listed protein powders.