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Introduction

If you’ve been shopping around for a weight loss shake you may have stumbled across a brand named Isagenix, they are a popular diet shake manufacturer with a large range of products. Their flagship shake named IsaLean is arguably one of the most popular meal replacements on the market.

In this IsaLean Shake review we’re taking a look at exactly what consumers can and cannot expect from it.

Readers please note that statements on this page are fair comment based on observation. This content is produced on a matter of public interest. Statements on this page are our honest opinion.

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What Is IsaLean Shakes?

IsaLean Shake is a weight loss / meal replacement shake produced by a US-based company named IsaGenix International LLC (trading as IsaGenix).

One tub of IsaLean costs around $50-55 and contains 14 servings (854g), making one serving cost $3.78; it is available directly from the official IsaLean Shakes website, and Amazon.

The company operate under a multi-level marketing structure, which basically means that they primarily sell directly to independently-operating resellers, rather than selling directly to consumers themselves.

To date, IsaGenix International has a solid reputation on the Better Business Bureau – Overall they have an A+ accreditation with a 68% customer review rating. From what we can see, the company has a good reputation for customer service, as every customer complaint has been resolved (source: bbb.org).

IsaGenix primarily specialize in weight loss products, with their flagship weight loss shake IsaLean being the backbone of the product range. The general idea of IsaLean is that consumers should use the product as a meal replacement shake in order to lower their daily caloric intake.

Does IsaLean Shake Work?

Based on our research into this product, we believe it may be a useful product for weight loss as long as users have the correct understanding of IsaLean.

Firstly, we must stress that this is not a “fat burning” product of any description – there are no ingredients inside IsaLean that will directly and independently burn body fat or boost metabolic rates. There’s also no dedicated appetite suppressing ingredients inside the formula.

IsaLean is essentially just a nutrient-dense meal replacement shake, and should be used exactly as such. In order to effectively lose weight with the IsaGenix IsaLean Shake, you’re going to need to switch out between 1-3 of your daily meals with one serving of the shake (ideally you’d be replacing all three daily meals). In replacing your meals, you’ll be crashing your daily caloric intake down to approximately 650-750 kcals per day, which will eventually result in weight loss with sustained usage.

To summarize, you’ll effectively be using the shakes to put yourself onto a VLCD (Very Low Calorie Diet); make no mistake, these diets are incredibly difficult to stick to, but can also be very rewarding if you have the willpower.

The Pros & Cons Of IsaLean Shake

Below we have listed everything that we like and dislike about this product:

The Pros

  • Formula is extremely nutrient-dense.
  • Contains lots of protein.
  • Very useful product to use for a VLCD.

The Cons

  • Doesn’t contain any ingredients that directly and independently burn fat or boost metabolism.
  • Potentially negative side effects.
  • Quite expensive to sustain usage of over the long term – $3.78 per serving.
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What Are The IsaLean Shake Ingredients?

We have found the following nutritional information via the official website:

One Serving (61g) Contains: Whey Protein Concentrate, Milk Protein Concentrate, Low-heat Nonfat Dry Milk, Fructose, Natural Dutch Cocoa Powder, Isomaltooligosaccharide Powder, Sunflower Oil Powder, Natural Flavors, Olive Oil Powder, Xanthan Gum, Flax Seed Powder, Medium Chain Triglyceride Oil Powder, Ionic Alfalfa Leaf Extract, Potassium Citrate, Magnesium Oxide, Tricalcium Phosphate, Sea Salt, Aspergillus, Lipase, Cellulase, Invertase, Protease, Amylase, Bromelain, Papain, Acid Stable Protease, Magnesium Citrate, Silicon Dioxide, Yucca Root Powder, Vitamin C, Magnesium Stearate, Psyllium Seed Powder, Biotin, Selenium Amino Acid Chelate, Cinnamon Bark Powder, Stevia Leaf Extract, Vitamin E Succinate, Copper Amino Acid Chelate, Vitamin A (Beta Carotene), Zinc Oxide, Manganese Amino Acid Chelate, Iodine Amino Acid Chelate, Niacinamide, Vitamin B5, Vitamin D3, Chromium Amino Acid Chelate, Niacin, Molybdenum Amino Acid Chelate, Vitamin B6, Vitamin B12, Vitamin B2, Lactobacillus Acidophilus, Vitamin B1, And Folic Acid.

Is IsaLean Shake Suitable For Everyone?

For the most part, everyone will be able to use this shake, however it should not be used by women who are pregnant or breastfeeding, or by persons under the age of 18 without the permission of a healthcare professional or dietician.

Additionally, IsaLean Shake isn’t suitable for vegans or those with allergens to milk.

What Are The IsaLean Shake Side Effects?

We’ve compiled the following potential side effects based on the ingredients inside this formula:

  • Increased bowel movements
  • Nausea
  • Increased thirst
  • Bloating
  • Cramps
  • Headache [1]

Note: these side effects are possible but may not be the typical user experience.

Are There Any IsaLean Shake Reviews From Customers?

We have found the following IsaGenix IsaLean Shake review testimonials via customers online:

This product is amazing and it has great flavor!! I would recommend it to everyone who wants to stay healthy and lose weight!!!

I followed the directions and didn’t lose any weight in the two weeks that I took these shakes.

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Our Final Verdict On IsaLean Shake

To conclude our IsaGenix IsaLean Shake review, it’s a bit of a mixed bag – there are things that we like about it and things that we aren’t too blown away by.

If you’ve got the willpower to use the IsaLean shakes for a VLCD shake diet, you’ll more than likely see great weight loss results.

The main issue for us is the price point. As you’re going to need to sustain usage of this shake for at least 1-2 months, things are going to get expensive fairly quickly, especially when one tub only contains 14 servings – for the formula used, we do not feel that $53 per tub is a particularly good deal.. but if money is no issue then go for it!

Kath Ross, PhD
Kath Ross, PhD
Health Editor & Fact Checker at DietProbe
Kathryn is a Ph.D Health Editor here at DietProbe. She specializes in diabetes and weight control research and in her spare time she's a professional cat lady and wine connoisseur!
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Fact Checked


This article has been reviewed and fact-checked by a certified nutritionist, and only uses information from credible academic sources.