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Isopure Shakes

Isopure Protein Review (UPDATED 2023): Don't Buy Before You Read This!

A lactose-free, high-protein meal-replacement shake.

Top Rated Diet Shakes of 2023
What is it?

Isopure Protein is a protein rich drink offered in both powdered and ready to drink forms. It claims to be a nutritionally well-rounded and high protein way to recover from a workout, or to simply use as an extra protein source.

They offer a low carbohydrate to no carbohydrate powder, all natural blend, ready to drink unique flavors, and unflavored versions. The powdered versions are available in 1, 3, and 7.5 pound servings, while the drinks are offered in singles and 12 packs. By reviewing many meal replacements our experts found that the most effective solution for weight loss was 18Shake. It’s composed of a duo protein whey formula and a potent appetite suppressing fiber. Many customers say it’s an effective and great tasting weight loss solution. More information on 18Shake can be seen when you click this link.

Do You Know the Best Diet Shakes of 2023?

Isopure Protein Ingredients and Side Effects

Here are some common ingredients found in Isopure Protein’s blends:

Whey Protein Isolate

Soy Lecithin


Artificial Flavor

Xanthan Gum


FD&C Red 3


Microfiltered Whey Protein Isolate

Ion Exchange Whey Protein Isolate

Whey Protein Isolate: A virtually pure protein source extracted from whey, which is found in the cheese making process. It’s an easy to absorb and amino acid rich protein source.

It’s widely considered one of the best forms of protein available.

Taurine:Organic acid that is found in many animal tissues. It’s required for the cardiovascular system to function properly. Studies into its supplement form are limited, and it’s unknown what kind of an effect it may have on the body when supplemented.

Artificial Flavor:Often added to processed foods, these manmade chemicals are added to help substitute real ingredients. They are often more stable and preserve a certain flavor for longer. Some extracts used can come from tar, oil, and potentially dangerous additives.

A comprehensive top 10 list of the most effective meal replacements is available here.

Xanthan Gum:Food thickener and binder.

Sucralose:Noncaloric artificial sweetener which the body cannot break down. It can be upwards of 1,000 times sweeter than standard sugar.

Studies have shown the potential for side effects including reduced healthy gut bacteria, and a possible negative impact on blood sugar. A study by the Washington University School of Medicine found that it:

“sucralose affects the glycemic and insulin responses”

Another study featured on the Journal of Toxicology and Environmental Health found that it:

“exerted numerous adverse effects including reduction ion beneficial fecal microflora, increased fecal pH, and enhanced expression levels of P-gp”

The body will release P-gp during moments when a toxin enters the body. So not only did sucralose damage healthy gut bacteria, but according to this study the body treats it as an unwanted threat.

The Center for Science in the Public Interest has also downgraded its status to “Caution” after these studies came out.

FD&C Red 3:Artificial food dye with a cherry-pink hue. The FDA issued a partial ban due to it having a high risk forcancer on lab mice.

Certain European countries have also banned it due to health concerns.

Health organizations have also attempted to ban this ingredient since it has no positive health effects, and can be substituted with more whole additives.

Ion Exchange Whey Protein Isolate: This form of whey is processed in a way that concentrates more protein. This also adds chemicals that can make the amino acids degrade in quality. It’s also often the case that components meant to help absorb vitamins and minerals better will be lost.

It’s impossible to determine if this is the case with Isopure Protein, as the full amino acid list is not offered. Also, the ingredients aren’t featured on the official website, only 3rd party sites.

For a comprehensive top 10 ranked meal replacements list click the link provided here.

EDITOR’S TIP: Combine this supplement with a proven meal replacement such as 18Shake for better results.

Isopure Protein Quality of Ingredients

There are 2 types of main offerings from the company. A stripped down protein powder made without many vitamins and minerals, and a more balanced nutrient blend with many artificial ingredients.

The low carbohydrate to no carbohydrate blends has artificial ingredients like sucralose, food coloring, and artificial flavors. These cheap additives have shown the possibility for side effects.  They’re also substitutes for more wholesome ingredients; they have no benefit to other ingredients which can replace them.  They’re only added because they are cheaper in price.

The purer protein blend made only with whey protein and soy lecithin is lacking in many important vitamins and minerals. This means it’s not intended to be a full meal replacement, it’s only made to supplement with added protein. The only vitamins and minerals added are:

         • Calcium: 4%

         • Iron: 4%

         • Phosphorus: 2%

         • Magnesium: 2%

         • Chloride: 20%

There are no vitamins A, C, E, K, B6 B12, or the minerals Thiamin, Riboflavin, Zinc, Chromium, and other necessary nutrients.  This makes it a nutritionally poor protein powder. The issue with supplementing with extra protein without necessarynutrients is that protein is a powerful appetite suppressant. This can make it harder to eat the necessary foods to account for the essential nutrients.

Web MD also recommends a meal replacement to be:

“Fortified with a third of daily vitamins and minerals”

Isopure Protein has 0% of many of these nutrients. This will require one to seek these nutrients elsewhere either through eating more foods, or by adding multivitamins. In either case it raises the overall price, and it means this protein blend is lacking.

Our experts have compiled a top 10 list of the best meal replacements in the link cited here.

The Price and Quality of Isopure Protein

Direct sales are offered with the natural flavor and low to no carbohydrate selling for $41.00 per 3 pound tub. One pound sells for $18.57.

At the advised one serving a day, a 1 pound pouch has 16 servings. This amounts to a daily price of $1.60.

This is fairly expensive when you consider that one has to either select a nutritionally weak formula, which requires extra supplementation with vitamins and minerals, or a blend consisting of many artificial and potentially harmful additives.  There’s also no money back return policy, so all sales are final. Isopure Protein does offer many flavors and styles, but all of them are flawed. The blends with added vitamins and minerals have cheap ingredients which aren’t wholesome.

For a top 10 list of the highest rated meal replacements, click the link provided.

Business of Isopure Protein

The company is owned by the Nature’s Best Inc. They can be contacted via the following:

Phone Number: (715) 255-4600

Address: 6 Point Drive Suite 300

                   Brea, CA 92821

There have been no issues with the FDA or FTC or the Better Business Bureau. Very little information about the company is available.

EDITOR’S TIP: For the best results with meal replacement shakes diet our experts recommend to use it at least 5 months. Save your money buying a few bags of meal replacement product.

Customer Opinions of Isopure Protein

Here are some direct quotes from users:

“was instantly repulsed by the taste”

“It tasted like expired baby formula”

“has an underlying plastic taste”

“Horrid. This is the worst protein I have ever tried.”

Flavor was a major issue with customers, who often mentioned that it was difficult to drink due to artificial and chemical tasting shakes. There was major concern from people that the texture made it difficult to drink. People have tried to dilute the shakes by adding more liquids, but people often described it as chalky and far too thick.

Customers have also disliked many of the different flavor offerings, with some being considered undrinkable. Even the unflavored versions were difficult to drink due to the harsh consistency.

There’s currently over 1,000 negative reviews depending on the flavor and specific brand one sees.  A list of the most effective meal replacements for weight loss is available in this link.

Conclusion - Does Isopure Protein Work?

Many important considerations need to be understood when looking at Isopure Protein. This protein drink is offered in two styles, one of which has artificial flavors, colors, and sweeteners. The other natural blend doesn’t have any added vitamins and minerals, which mean it won’t work as a meal replacement. Many customers have also complained that they found the consistency and taste undrinkable. There’s also a lack of quality whey protein, as the ion processed whey will often have reduced amino acids and promote less nutrient absorption.

Our experts have concluded through performing many reviews that the most potent solution for weight loss is 18Shake.It’s an all-natural meal replacement made with 15 grams of whey protein, 5 grams of appetite suppressing fiber, several vitamins and minerals, and a low 90 calories. Customers have left testimonials and positive reviews on their official website to showcase their weight loss. It has no fillers, artificialingredients, food coloring, stimulants, or any cheap filler. It’s composed of a nutritionally well-balanced blend of wholesome ingredients that can help suppress appetite for hours.

18Shake is also backed by a full 30 day money back return policy. All sales are supported with this risk free guarantee. More information about 18Shake can be found in the link here.

How Does Isopure Shakes Compare?
  • Product Name
  • User Rating
  • Has Good Appetite Suppressant
  • Has Only Natural Components
  • Good Taste
  • Isopure Shakes
  • 37 /100
  • .

> Leave Feedback

User Feedback

(Page 1 of 1, 15 total comments)


The vanilla flavor is atrocious, but I find the others enjoyable. I drink a shake after my workout every day along worth eating balanced meals. I've lost 45 lbs in the past 4 months. I love this stuff for helping me control cravings throughout my morning and afternoon.

posted Apr 11th, 2017 9:52 am

Alyson Baker

I do not know how I would be able to stay in a ketogenic diet without this product. Its wonderful!

posted Apr 6th, 2017 6:07 am



I have been taking the protein shake before and after workouts and it has worked for me dinner is a salad or protein meal. any other suggestion to lose weight please let me know trying to lose 20 pounds. thanks

posted Apr 21st, 2016 2:37 am



i would like to try this maybe it will help me am very over weight i try to eat alittle but i get full and dont feel good to my stomach and hard to go to the restroom

posted Apr 12th, 2015 2:17 pm



I having nothing but good things to say about there product. I lost 130 pounds with the help of these shakes.especially when your on the go

posted Apr 4th, 2012 9:07 am


I have been using Isopure for the past 2 weeks. but have not felt much of a difference. I really do not know when to consume the powder. On workout days, I have 1/4 scoop before workout, 1/2 scoop after workout and another 1/2 scoop before going to bed. While on non workout days, I just have 1/2 scoop before going to bed.
Please advise when and how much quantity should I consume.

posted Mar 3rd, 2012 7:02 am


50 prams of protein per serving? If you are diabetic or have early kidney disease, you will damage your kidneys even more. And the sad part is that you might not even know that you have diabetes or early renal disease.
I do like to use isopure, but will have half of one before a workout and half after a work out for muscle fuel.

posted Mar 22nd, 2011 11:49 am


Being diabetic, the zero carb is what i use. as far as the taste goes. yea its not great but you can add nonfat and low cal stuff to it to improve the taste and texture. i have used nonfat yogard, frozen fruit or juice with it and blend it into a shake style drink. i have tried many many diets and the only one that has really worked is the medifast which has the same protien shakes in it. so i am adapting my own type of diet using the isopure as a meal replacement for 1-2 meals a day and then eating lean and green. ill let you know how it works out.

posted Mar 4th, 2011 1:17 pm


can anybody tell me how to use isopure lo lose some weight currently i dont have that good of a diet i just try to avoid chips, flours , sodas etc. and go running for about 40 to 50 min everyday like at night .. i drink an isopure zero carb shake like 30 min after i finish my exercise and well thats like my dinner .. will this work ? please some pointers

posted Jul 19th, 2009 3:07 pm



drys my mouth and taste like $&^$

posted Apr 19th, 2009 11:06 pm

Atanacio Gaona


I'm currently using the ISOPURE zero carb protein shake, and its perfect. the taste isn't too wonderful, but the results are. i've lost 6 pounds and i've only been using it for a week and 2 days. try it

posted Apr 18th, 2009 1:31 pm



it taste terrible buy the ready made ones instead

posted Dec 5th, 2008 6:52 am


The Zero Carb version of Isopure tastes pretty bad, but the Low Carb (only 3 grams of carbs and no sugar) tastes absolutely phenomenal. Dutch Chocolate is the flavor I prefer. It tastes better than Myoplex (which is a great MRP by the way.)

posted Jun 12th, 2008 4:56 pm


We've been using Isopure Low Carb Chocolate for years. It works well as a protein supplement as well as meal replacement and we tend to like this flavor the best. You can purchase it in 3.3 and 7.5 lb from dps nutrition at great discount prices.

posted Apr 24th, 2008 9:21 am


ive tried these shakes! they might not taste all that great as compared to myoplex but they give the best results in the world. if u want to lose some serious fat n weight then get onto these! its worked wonders for me ive lost 47lbs in 2 months!! i take one shake for breakfast with a fruit and almonds.. then one shake for lunch with some steamed veges and a salad for dinner.. and now i can wear my bikini and look as skinny as ever :D :D

posted Mar 7th, 2008 9:05 am


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BACKGROUNDBACKGROUND Start the Diet Now Advertisement

Meal replacement shakes are a good way of getting many nutrients your body needs. It's convenient and simple. It can also be a very effective way to lose some serious weight.

Isopure Shakes have gotten some publicity lately with the dramatic weight loss results of rocker Courtney Love. She lost over 40 pounds with Isopure Shakes. In 1998 Nature's Best, a ten-year old company specializing in diet and weight loss supplements, introduced Isopure. Isopure is the first meal replacement, or after-workout supplement, to have a whopping 50 grams of 100% pure ion exchange whey protein isolate. Impurities like fat and lactose are removed to provide the consumer a powerful weight management product.

All formulations of Isopure are lactose-free, which means less gastric disturbance and minimal bloating. One of the nicer aspects of the ingredient list of the Isopure products is that they have little or no sugar. In addition, Isopure is rich in branched chain amino acids and glutamine. Glutamine supplementation can minimize the breakdown of muscle tissue and improve protein metabolism.

Do You Know the Best Diet Shakes of 2023?

  • It's a simple way to get neglected nutrients that are essential to optimal fitness
  • Isopure shakes can be mixed with a spoon, so you don't need to lug around a blender
  • Established company
  • Lactose-free
  • Contains no fat
  • The only negative to doing shakes as a meal replacement is that it's doubtful that you will make it a lifestyle habit forever. But, if you use them as after-workout supplements, that can easily be seen as sustainable.

The Isopure shake powders come in many flavors, including Dutch Chocolate, Creamy Vanilla, Strawberries & Cream, and Chocolate Peanut Butter Swirl.

Also available is a line of Isopure Zero Carb juice drinks, in delicious flavors like Icy Orange, Passion Fruit, Alpine Punch, Apple Melon and Grape Frost.


There is not an exercise routine that accompanies the Isopure Shakes from its manufacturer.


Protein is essential for everyone, and especially important if you want to build lean muscle mass. If you find it hard to get adequate amounts of protein, a high quality shake mix like Isopure is a suitable solution. And don't think this is just for hardcore bodybuilders; everyone looking to supplement their nutrition and get a lean physique should give Isopure Shakes some serious thought.

Common MisspellingsCommon Misspellings

isopur shake, isapure shake, courtney love diet

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