Is losing weight quickly really as simple as sipping on a few shakes per day? Weight Loss Shakes, aka Diet Shakes, have become increasingly popular due to their user-friendliness and overall positive effects. In this GNC Lean Shake review, we’re taking a look at what customers can really expect from this popular meal replacement.

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, not fact. Let’s take a look at the top level pros and cons of this product:

GNC Lean Shake Benefits:

  • Effective for meal-replacement weight loss
  • Contains useful ingredients that support metabolism

GNC Lean Shake Drawbacks:

  • The product doesn’t contain any “fat burning” ingredients
  • May not keep you feeling full for very long
  • Potentially negative side effects
  • No money-back guarantee

GNC Total Lean Shake Product Image

Editor’s note: Shopping around? Click here to check out our most recommended shake for weight loss.

Some Quick Information About GNC Lean Shake

Lean Shake is a weight loss shake produced by the US-based supplement retailer named GNC (General Nutrition Center). One tub of Total Lean Shake contains 16 servings (768g net weight) and costs $34.99.

The product finds itself placed in the “total lean” product range, which is a GNC home-brand weight management range. The product can be used alone but users are encouraged to stack the product with a fat burner from the same product range named “Burn 60“.

GNC themselves describe the shake is a well-balanced blend of ingredients that is proven effective for weight loss. When we looked further into the formula we found the shake itself is essentially just a protein blend combined with vitamins and minerals.

The general concept of Lean Shake is that users should replace one of their daily meals with a serving of Lean Shake in order to lower their daily calorie consumption.

Does GNC Lean Shake Work?

Based on our research into this product we believe that it may be useful for weight loss if you use the product correctly.

Firstly, it is important to note that GNC’s Lean Shake does not contain any fat burning / metabolism ingredients, so users shouldn’t expect the product to literally “burn away” their body fat, however the shake does have great nutritional values and is full of all our daily required vitamins and minerals.

In order to see weight loss results from this product you will need to use it as a meal replacement shake

Ideally, users should replace between 1-3 of their daily meals with a serving of Lean Shake – by replacing your daily meals, you will be significantly lowering your daily caloric intake which in time can result in weight loss.

Another positive for Lean Shake is that it contains Chromium, which is a mineral that helps contribute towards the body’s natural metabolism of macronutrients and it may also help regulate blood sugar levels.

It goes without saying that in order to see weight loss results you must stick to a calorie controlled diet. You are unlikely to see results if you are snacking or over-eating in between the servings.

What’s The Difference Between Lean Shake and Lean Shake 25?

The products are essentially the same core concept, however the Lean Shake 25 contains 25g of protein per serving, whereas the standard Lean Shake only contains 9g of protein. Lean Shake 25 is also slightly lower in carbohydrates.

What Are The GNC Lean Shake Ingredients?

We have found the following nutritional information for this product via the GNC website:

One Serving (2 Scoops) Contains: Carbohydrate Blend (Maltodextrin, Oat Bran, Cellulose Powder, Gum Blend, Resistant Corn Starch), Milk Protein Concentrate, Nonfat Dry Milk, Creamer, Vitamin and Mineral Blend (Dimagnesium Phosphate, Calcium Carbonate, Tricalcium Phosphate, Sodium Ascorbate, Ferric Orthophosphate, Dl-Alpha Tocopheryl Acetate, Niacinamide, Zinc Oxide, D-Calcium Pantothenate, Manganes Sulfate, Pyridoxine Hydrochloride, Cupric Oxide, Thiamin Hydrochloride, Vitamin A Acetate, Riboflavin, Chromium) Natural and Artificial Flavour and Surcralose.

Allergens – Contains Milk and Soybeans. May Contains Wheat.

What Are The GNC Lean 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
  • Tiredness (fatigue)
  • Headache [1]

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

What Claims Are Being Made About GNC Lean Shake?

We have found the following claims and/or implications being made about this product:

    1. Is clinically proven – True
    2. Helps you feel fuller – Potentially True
    3. Fuels metabolism – True

Are There Any Reviews From Customers?

We have found the following GNC Lean Shake review testimonials via customers online:

The taste is wonderful. I especially love Chocolate Peanut butter. I add a banana, a little vanilla extract, and I totally fell in love with it. Sometimes I forget to eat, because the shame keeps me full for hours.

it did curb my appetite throughout the day….I will never buy the vanilla again. Will try the chocolate one and hopefully that will be better.

To date, GNC are one of the largest retailers of health and wellness supplements, with over 7000 locations worldwide. It goes without saying that the company has a stellar reputation for customer service.

Where Can I Buy This Product?

This product is available online via the official GNC website (, or in stores.

Our Conclusion.

To conclude our GNC Lean Shake review, we recommend this product. While it’s certainly does not have the most advanced formula we have ever seen (it doesn’t contain fat burning or appetite suppressing ingredients), It is an extremely robust meal replacement shake that contains everything you would need to safely and effectively execute shake only diet.

The product is widely available, isn’t too expensive and is relatively side-effect-free.

Kath Ross, PhD
Kath Ross, PhD
Health Editor 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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