TOP 8 Best Low Carb Protein Powders & Supplements 2024

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TOP 8 Best Low Carb Protein Powders & Supplements Reviewed 2024

You probably think of protein powders as something that bodybuilders take, and that’s not the look you’re aiming for.

But, that doesn’t have to be the case!

Protein is essential for your body, specifically for repairing and building lean muscle. That’s why so many people should and do take it after a workout.

If you’re looking to lose weight or are busy counting the calories you can use one of the following best low carb protein powders. You’ll get all the benefits of protein, without the carbohydrate driven weight gain.

It’s a win/win scenario!

However, there are a lot of products on the market. That’s why you’ll need to read this guide and find the best low carb protein powders.

It doesn’t matter if you’re looking for the best tasting low carb protein powder, low carb powder for weight loss, or protein powder for low carb diet; you’ll find it here.

So let’s get on with it!

TOP 8 Best Low Carb Protein Powders Reviewed 2024

Onnit Grass Fed Whey Isolate Protein

ONNIT Grass Fed Whey Isolate Protein - Vanilla (20 Servings)
  • Each serving of our protein contains 20 grams of Whey Isolate, offering a complete amino acid profile with a high protein yield for muscle recovery.
  • Featuring non-GMO whey protein isolate derived from the milk of Irish dairy cows—animals raised on farms where they can graze an average of 250 days per year. (Based on a 3 year average; Certified Animal Welfare Approved (AWA) by A Greener World)
  • Unlike whey protein concentrate, whey isolate has had most of the fat and carbs from its milk source filtered out, leaving you with what you want—protein to help you build muscle, recover from workouts, and support lean body mass.
  • Whey isolate, which naturally contains leucine, is a must for supporting muscle recovery and protein synthesis.

Review: This is the best low carb whey protein powder. It has 20g of whey isolate and uses non-GMO ingredients which are sourced directly from grass-fed cows.

It’s the perfect solution for anyone looking to recover faster while building lean muscle and burning fat.


  • 20g protein per serving.
  • All natural ingredients.
  • Isolate which means fat and carbs filtered out and faster delivery to your muscles.
  • Digestive enzyme added to aid gut health.


  • Contains whey; not a good idea for anyone with lactose
  • Some people report the flavor is similar to rotten fruit.


This low carb protein supplement is designed to give fast delivery, without the carbs, and uses all natural ingredients. The addition of a digestive enzyme helps your body to process it and improves gut health.

That’s why it’s topping the list for the best low carb protein powders.

Perfect Keto Protein Powder

Perfect Keto Collagen Peptides Protein Powder with MCT Oil - Grassfed, GF, Multi Supplement, Best for Ketogenic Diets, Use as Keto Creamer, in Coffee and Shakes for Women & Men - Salted Caramel
  • Practical Powder: Dissolves easily into any drink, hot or cold. Mix into water, coffee, shakes, smoothies, yogurt, or oatmeal for a chocolate flavor that kicks your sweet tooth, but not your diet
  • MCT: Unlike competitors, each scoop has 10g of collagen & 5g of pure MCT oil powder, which supports ketosis.
  • All Day Energy: Use in the morning to start your day or as pre-workout fuel. Comes with an included scoop so no measuring or blender is needed.
  • Health Benefits: Hydrolyzed collagen supports hair, skin, nails and joints.
  • Super Supplement: Non-GMO, gluten & dairy free, our collagen powder has only 2 net carbs per serving. We use grass-fed beef and Types I & III. The flavour tastes like dessert, with no added sugar. (Packaging may vary)

Review: This product comes from 100% grass-fed cows. It blends fantastically with coffee, smoothies, and other drinks; without even using a machine. In short, it’s probably the best zero carb protein powder you’ll get.

It’s designed to help control your appetite, improve gut health and be kind to your skin and bones.


  • Contains MCT Oil Powder to boost blood ketone levels.
  • 2:1 ratio of protein to MCT.
  • 4 flavors.
  • No artificial sweeteners.
  • Zero carbs.
  • 10g protein.


  • Flavoring is weak, can be lost in the product.
  • Price on the high side.


If you’re looking for the best zero carb protein powder then this one has to be a contender.

It’s completely natural without additives; which is perfect for anyone concerned about what they are putting into their body.

Julian Bakery Paleo Thin Protein Powder

Julian Bakery Paleo Thin Protein Powder | Egg White | Unflavored | 25g Protein | Soy-Free | GMO-Free | 2 LBS | 30 Servings
  • Paleo Protein Powder Is Soy Free (Egg Whites) From USA Farms (30 Servings Total)
  • Unflavored - Instantly Mixes In Water (GMO Free) (2 Lbs) IKDiet Phase 1 Compliant
  • Two Ingredients: Egg White Powder & Sunflower Lecithin (381mg Sodium Naturally Occurring)
  • Makes Incredible Shakes! 25g Protein Per Scoop ( Highest Grade Egg Whites)
  • 25g Egg White Protein Per Scoop (1 Carb) (Complete Protein) (Ideal For Lean Muscles)

Review: This is a soy-free low carb protein powder, making it one of the best low carb protein powder for keto diet or a paleo diet.

The fact that this protein supplement has only two natural ingredients and offers virtually no carbs with a high protein content makes it the perfect choice for anyone on a keto, or paleo diet.


  • Unflavored; mixes instantly with water.
  • Just 2 ingredients: egg white powder & sunflower lecithin.
  • 25g protein per scoop.
  • Just 1 carb.
  • Full of BCAAs.


  • Despite the claim, it doesn’t always mix well with water unless you have a blender.
  • Some people have reported stomach upsets and an appalling flavor.


This low carb protein shake may be best for those who are planning on mixing it with food or other drinks.

However, it is an excellent choice for anyone vegetarian or suffering from a lactose intolerance issue.

BPI Sports ISO HD 100% Protein Isolate

BPI Sports ISO HD 100% Protein Isolate & Hydrolysate, Vanilla Cookie, 4.8 Pound.
  • 100% Protein Isolates & Hydrolysates - ISO HD is the purest, low-calorie protein, delivering 25g per serving of ultra-premium isolates and hydrolysates. This unique formula is unmated in nutritional value and taste!
  • Ultra-fast Absorption - Consuming hydrolyzed whey protein allows amino acids to be promptly absorbed to maximize the nutrients delivered to your muscles.
  • Lean Muscle Growth - ISO HD drives protein synthesis within the body, delivering nutrients to the muscle tissue to fuel growth.
  • Rapid Muscle Recovery - The faster nutrients can reach your muscle tissue, the faster you can recover. This fast-digesting, fast-absorbing blend of isolates and hydrolysates allows you to quickly fuel your muscles after a workout.
  • Third-party Certified - The ChromaDex Quality Verified Seal found on every bottle of ISO HD certifies that what you see on the label is what you get. Nothing more, nothing less.

Review: BPI sports have made a protein supplement that is low in carbs, high in protein and encourages protein synthesis in your body.

It is the perfect solution for after you’ve finished exercising and want to quickly get the nutrients your body needs.


  • 25g protein per serving.
  • Just 3g carbohydrates.
  • Very fast absorption.
  • Drives protein synthesis.
  • Contains calcium & magnesium.
  • Third party certified.


  • You need a blender to mix the powder.
  • Some of the flavors are not great; such as cookies and cream.
  • Expensive.


There is very little to fault in this low carb protein powder, the need to blend and choose the right flavor can be overlooked.

But, the price is definitely at the high end of the scale; it probably won’t be your first choice when taking a protein supplement for the first time.

Optimum Nutrition Platinum Hydrowhey Protein Powder

Optimum Nutrition Platinum Hydrowhey Chocolate Mint 1.75L
  • Made With Advanced Hydrolyzed Whey Protein Isolates for Faster Delivery
  • 30 Grams of Ultra-Pure Protein Per Serving
  • Nearly 9 Grams of Naturally Occurring and Added Leucine, Isoleucine, and Valine (BCAAs) per Scoop
  • Instantized to Mix Easily With a Spoon

Review: At first glance, this is at the higher end of the scale for carbs. However, it has 30g of protein per serving which means the ratio of protein to carbs is actually very favorable.

Optimum has a great reputation for making quality supplements and this product is no exception to that rule.


  • Attractive price.
  • 30g protein per serving.
  • 4g carbs.
  • Digestive enzymes for a healthy gut.
  • Sugar-free.
  • Gluten-free.


  • A higher level of carbs than the competition.
  • 140 calories, again higher than the competition.
  • Contains lactose.


This is a great low carb protein supplement. But, it is probably better suited to those trying to build lean muscle; rather than those trying to lose weight.

Isopure Zero Carb Protein Powder

Isopure Unflavored Protein, Whey Isolate, 25g Protein, Zero Carb & Keto Friendly, 2 Ingredients, 16 Servings, 1 Pound (Packaging May Vary)
  • UNFLAVORED POWDER – one scoop easily mixes in your favorite beverage or food for a high-protein treat
  • INGREDIENT PROFILE –profile consisting of only whey protein isolate and soy lecithin (to help create a creamy texture)
  • 100% WHEY PROTEIN ISOLATE – a high-quality protein source providing 25g per serving to support muscle
  • ZERO CARBS, FAT, SUGAR – helps For those watching their calorie intakes
  • WEIGHT MANAGEMENT – supports your weight management goals by providing 100 calories per serving

Review: This is definitely a contender for anyone on the keto diet as it is one of the best zero carb protein powders on the market and won’t stop the ketosis going on in your body.

This is also a great choice for anyone wishing to keep it natural, the product is unflavored and contains just two ingredients: whey protein isolate and soy lecithin.


  • 25g protein.
  • Zero carbs.
  • Only 100 calories per serving.
  • Gluten & lactose-free.
  • Fast absorbing.


  • Doesn’t dissolve easily in water.
  • Slight aftertaste; despite having no flavor.


If you’re looking for a zero carb protein supplement that will keep you in ketosis; then you’ve found it.

You’ll have to deal with potential clumping and an aftertaste by adding the powder to your food. But it will be very effective.

Naturade Vegansmart Plant Based Protein Powder

Vegansmart Naturade Plant Based Vegan Protein Powder - All-in-One Nutritional Shake Protein Blend - Gluten Free & Non-GMO - Vanilla (15 Servings)
  • 20g PROTEIN BLEND: Naturade Vegansmart combines a premium plant-based protein blend, contributing to muscle management with a hearty 20g protein per Servings, and a nutritional complex enriched with 9 unique fruits and vegetables for holistic health. Infused with the delightful flavor of vanilla, this protein blend is a delicious way to nourish your body and achieve your fitness goals. This powerful combination provides a wealth of antioxidants, making it an all-around wellness supplement.
  • All-IN-ONE NUTRITION: Naturade Vegansmart vegan protein powder is a nutritional solution that goes beyond protein. It's a low-calorie, all-in-one shake packed with essential vitamins, minerals, and prebiotics for digestion and overall wellness. With added dietary fiber, an Omega blend, and a spectrum of 23 vitamins and minerals, this convenient all-in-one shake provides comprehensive nourishment for your body's diverse needs.
  • EVERY DAY NUTRITION: Vegansmart plant-based all-in-one nutrition shake is designed for your everyday nutritional needs. Providing 20g of protein per Servings, 5g of sugar, and a only 170 calories, it satisfies and supports your wellness objectives. The blend of 5 distinct plant-based proteins supplies all the essential amino acids your body needs. Fuel your body with this delightful vanilla shake daily and take a step towards a healthier, happier you.
  • PLANT - BASED & GLUTEN FREE: At Naturade, we acknowledge the significance of dietary preferences and constraints. Our 100% vegan certified powder ensures no animal products or byproducts are used. Free from gluten, dairy, soy, and cholesterol, it aligns perfectly with your health-conscious choices. Nourish your body with this vanilla-flavored blend, knowing that it respects your dietary needs.
  • DELICIOUS AND NATURALLY FLAVORED: Reinvent your protein shake experience with our delicious Naturade Vegansmart, naturally flavored with authentic vanilla. This naturally flavored, rich, and creamy shake is free from artificial additives, doubling as a comprehensive meal replacement. Ideal for breakfast or on-the-go, it can be enjoyed as a granola bowl or blended shake, providing guilt-free, tasty, and nutritious sustenance.

Review: The name says it all, this is the best low carb protein supplement for vegans. You may notice the protein content is not as high in this mixture. However, this is because for plant-based proteins a little goes a long way.

In addition, this protein supplement will give you a host of vitamins and minerals; helping your body to stay healthy as you achieve your weight loss or muscle building goals.


  • No GMO’s.
  • 22 vitamins and minerals included.
  • Contains Omega-3 fatty acids.
  • Gluten, dairy and soy free.
  • Vegan approved.
  • 20g protein.


  • 5g of sugar in each serving, not good for weight loss.
  • 15g carbohydrates.


There are limited options available for vegans wanting a low (ish) carb protein supplement, and this is probably one of the best protein supplements you’re going to find.

As with any of these supplements, they should be part of a healthy diet; they are not intended as part of a meal replacement technique.

Ora Organic Plant-Based Protein Powder

Review: This is another option for vegans with serious potential. It has a range of additives, including amylase, protease, lipase which help your body absorb the protein faster while keeping you feeling full for longer.

There is also a range of other ingredients, potentially boosting your energy and nutrition levels.

However, this is also the reason why the Ora Organic offering is the last on the list; it’s not pure protein powder.


  • No GMO’s.
  • Gluten, dairy, & soy free.
  • Organic ingredients.
  • 21g protein.
  • 5g carbs.


  • Higher in salt than the competition; 250mg which is 11% of your daily allowance.
  • Some people have noted the taste is not good.


This is a great option for vegans looking for a low carb protein supplement that offers a little more.

It’s marketed as a lean & clean supplement but it does contain an array of additions that, although designed to boost body health, make it more than just a protein supplement.

Your Quick Guide to Low Carb Protein Powders

white jar with whey protein powder

Choosing the best low carb protein powders doesn’t have to be hard with this list.

But, it will help if you understand a little more about protein powders and their role in your health and weight loss goals.

Protein is an essential nutrient in your body for protein synthesis.

This is the process that repairs micro tears in your muscles, making them stronger and potentially larger, (depending on the weight you’re lifting). But, most regular protein powders have carbohydrates and protein.

The protein is for muscle repair, the carbohydrates are to help boost your energy levels after exercise and even prevent your body from burning muscle for energy.

Of course, this increases the calorie count of your protein supplement.

A low carb protein powder has very few carbohydrates which makes them perfect for muscle repair without the fat gain.

When you consume carbohydrates these are converted into glucose in your bloodstream, via the release of insulin. If there is too much glucose in your bloodstream then the excess is turned into fat and stored; for use at a later date.

Of course, if you’re trying to lose weight or show off your lean muscles, gaining fat is not something you want to be doing; that’s why you need the best low carb protein powders.

There are several things you should consider before you invest in your next low carb protein powder;

man preparing a protein shake


The first thing to check is the reputation of the manufacturer.

You need to be able to trust them and the easiest way to do this is to look at their website for their history and the research they’ve done.

You can then check social media sites to see what other people think of their products. You should get a mixed bag of reviews with more positive than negative.

Finally, check with your family and friends, they may have tried the product themselves.

Pay particular attention if anyone tells you of side effects of a specific powder; they are usually rare and not everyone will get them.


It is important to consider your current diet. Experts recommend that you consume 0.8 grams of protein per kilogram of your body weight per day.

But, this is for a sedentary person. If you’re exercising, this amount can rise to between 1.2 and 1.5 grams per kilogram.

You can get plenty of protein from your food; consider how much extra you need before you decide how many times a day you need to take the best low carb protein powder for weight loss or muscle gain.

We’ll take a look later at when you should be taking your protein powder.

Proprietary Blends

A quality product will declare every ingredient and the amount of each ingredient. If they don’t declare the amount then the powder has a proprietary blend.

These are best avoided as you don’t know how much of each substance you’re getting; making it very hard to establish how beneficial it actually is.

The main reason for proprietary blends is for the manufacturer to save money; that doesn’t inspire me with confidence that they can be one of the best low carb protein powders.

Avoid Added Sugars

If you’re looking to lose weight or display the muscle you’ve gained, the last thing you need is extra sugars.

Check the ingredients to ensure sugars and sweeteners haven’t been added. Unfortunately, the best tasting low carb protein powder is most likely to be the one with lots of extra sugar in it.

Instead, choose a natural or no flavor and take a look at the FAQs below, specifically how to improve the flavor.

Budget Properly

Protein powders come in all shapes and sizes, as well as an array of prices.

You need to budget for the cost of purchasing these on a regular basis and look at buying the larger containers. These will usually offer you the best cost savings.

When considering the price of protein powder you’ll need to bear in mind that this is simply part of your weekly food bill.

A low carb protein powder is a supplement that helps to ensure you are getting all the nutrition you need.

What Classifies as Low Carb Protein Powder

If you take a look at the average protein powder you’ll see there will usually be approximately 6-10 grams of carbohydrates to every 20 grams of protein.

Roughly 25-30% of the ingredients will be carbs.

A good low carb protein powder will have between 1 and 5 grams of carbohydrates to 20 grams of carbs. You can even find some that have zero carbs.

In short, check the ingredients label before you purchase.

dumbbells, protein powder and amino acids


To help you understand low carb protein powders, here are the most frequently asked questions, (and answers).

Is whey protein powder low carb?

Yes and no! The answer to this question will depend on the manufacturer and the ingredients they have included.

It is perfectly possible to have a whey protein powder that has 25g of protein and just 3grams of carbs.

However, you can also get whey protein powders with 25g of protein and 10g of carbs; that’s because some are designed as the best protein powders for weight loss and others are designed as the best protein powders for muscle gain.

Again, check the label before you buy.

Is protein powder good for a low carb diet?

Yes! Protein is essential for the health of your body. It doesn’t just help to repair your muscles, it can also help to protect them from being used as an energy source.

This will encourage your body to burn fat and help you to lose weight; which is usually the purpose of a low carb diet.

However, as with any supplement, it is important to remember that it is a supplement and not a meal replacement. It should be used alongside your regular meals and exercise.

The best low carb protein powders when you are trying to lose weight will have a lot of protein, with very few carbs, calories, and fat.

Are low carb protein powders safe?

The majority of low carb protein powders are completely safe. However, most of them do not need to comply with FDA regulations.

This is why it is essential to check the reputation of the manufacturer before you purchase.

You should also be aware that any whey based protein powder can cause issues if you are lactose intolerant; in this case, they won’t be considered safe and you should use a non-whey based powder.

Are there any known side effects of low carb protein powders?

The most common, and generally the only side effect of protein powders is digestive issues. These are generally connected to either lactose intolerance or poor quality whey protein.

If you do experience issues connected with intolerance you’ll likely feel bloated, have gas, stomach cramps and possibly even diarrhea.

On occasion, it can also cause thirst, reduced appetite and occasionally headaches.

Will it really help me to lose weight?

Yes, but only as part of a healthy diet and exercise plan. By itself a low carb protein powder will reduce your calorie and carb intake, encouraging weight loss.

However, to be really effective you need to start eating more healthily and add some exercise into your daily regime. A treadmill is a great starting point as you can walk, jog, or run and do it any anytime of the day or night; regardless of the weather.

When should I take my low carb protein powder?

The instructions on the side of your powder container will tell you when you should take it. Most manufacturers will recommend three times a day:

  • In the morning to boost your metabolic process and get the day started.
  • After you’ve worked out to replace proteins, (and carbs) that have been lost.
  • Before bed to ensure your muscles have the fuel they need while you sleep.

However, if you’re getting plenty of protein in the food you eat then the best option will be to take it once a day during your recovery period.

This is usually defined in the 60 minutes immediately after a workout. It’s the perfect accompaniment to a foam roller recovery routine.

Can I improve the flavor?

It is best to choose no flavor in order to minimize added sugar and carbs. However, this doesn’t mean taking the best low carb protein powders has to be a chore.

You can mix it with milk to improve the flavor or make your own flavor by adding a spoon of peanut butter, fruit, or even mixing it with your oatmeal.

Summing Up

Choosing the best low carb protein powders with this guide is easy. Simply read the guide, the FAQs and check out the reviews.

You’ll know which one is right for you.

If you’ve got any questions that haven’t been answered, subscribe to the newsletter below and ask them; I’m here to help.