Does RelaxSlim’s latest diet shake really have what it takes to boost your metabolic rates? If so, it could be an attractive offering for dieters. In this RelaxSlim Metabolic Protein review, we’re taking a look at what consumers can and cannot expect from this popular weight loss shake.

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:

RelaxSlim Metabolic Protein Benefits:

  • Very low in calories
  • Contains digestive enzymes
  • Lots of vitamins and minerals in the formula
  • Good for a shake-only VLCD (very low calorie diet)

RelaxSlim Metabolic Protein Drawbacks:

  • Formula doesn’t contain any fat burning or metabolism-boosting ingredients
  • May not suppress user appetites for very long
  • No money-back guarantee

Metabolic Protein Product Image

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

Some Quick Information About RelaxSlim Metabolic Protein

Metabolic Protein is a weight loss / meal replacement shake produced by a US-based company named RelaxSlim. One tub of Metabolic Protein costs $29.00 and contains 10 servings, meaning each meal replaced will be costing you around $2.90.

Metabolic Protein is essentially just a blend of whey protein concentrate and isolate with added egg white solids, carbohydrates, vitamins & minerals and digestive enzymes.

Consumers are promised effects such as increased metabolic rates and naturally suppressed appetite levels.

Does RelaxSlim Metabolic Protein Work?

Based on our research into this product, we believe it may be a useful weight loss shake, but we feel that we need to clear up a number of misconceptions that our readers may have about the product.

Firstly, we feel that the product name of “Metabolic Protein” is a bit misleading; implies that the product will boost user metabolic rates, however this is not the case. When we analyzed the formula, we found that there are no metabolism boosting or fat burning ingredients inside RelaxSlim’s Metabolic Protein.

Despite the lack of fat burning ingredients, this shake may will be useful for dieters who are willing to put themselves on a VLCD (very low calorie diet). The Metabolic Protein shakes are an ideal meal replacement as they are low in calories, nutrient-dense and contain other ingredients that are useful for general health purposes.

By sticking to a 3-4 shakes-per-day diet, you’ll be significantly reducing your daily caloric intake, which will result in gradual, natural weight loss over a period of 2-3 months.

Don’t expect fast, miraculous fat burning results from this shake – the formula doesn’t have that type of capability.

What Are The RelaxSlim Metabolic Protein Ingredients?

We have found the following nutritional information for this product:

One Serving Contains: Whey Protein Isolate, Calcium Caseinate, Egg White Solids, Sodium Caseinate, Whey Protein Concentrate, Coconut Oil, Polydextrose, Prohidroxy P, Protease I, Protease II, Amylase, Lactase,Peptizyme SP, Maltodextrin, L-Glutamine, Xantham Gum, Salt, Soy Lecithin, Mono & Diglycerides, Sodium Silico Aluminate (flow agent),Cellulose Gum, Modified Corn Starch, Natural and Artificial Flavor Sucralose, Acesulfame Potassium, and the following vitamins and mineral: Calcium Phosphate, Potassium Phosphate, Magneisum Oxide, Potassium Chloride, Sodium Ascorbate, Ferric Orthophosphate, Vitamin E Acetate, Niacinamide, Zinc Oxide, D-Calcium Panthothenate, Manganese Sulfate, Copper Gluconate, Vitamin A Palmitate, Pyridoxine, Hydrochloride, Thiamin Mononitrate, Riboflavin, Chromium Chloride, Folic Acide, Sodium Molybdate, Potassium Iodide, Sodium Selenite, Vitamin K1, Vitamin D3, Biotin, Vitamin B12.

Allergens – Contains Milk, Egg, Soy and Coconut.

What Are The RelaxSlim Metabolic Protein Side Effects?

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

  • Increased bowel movements
  • Nausea
  • Diarrhea
  • Increased thirst
  • Bloating
  • Cramps
  • Fatigue
  • Headache [1][2]

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

What Claims Are Being Made About RelaxSlim Metabolic Protein?

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

    1. Boosts metabolic rates of consumers – False
    2. Naturally suppresses appetite – Potentially True*

*This product will suppress user appetite levels, but no more than eating any other type of food would. The increased satiety effect of this product will vary from user to user. For the record, there are no ingredients inside Metabolic Protein that will cause long-term appetite suppression.

Are There Any Reviews From Customers?

We have found the following RelaxSlim Metabolic Protein review testimonials via customers online:

Awesome taste.. honestly wished it lasted longer for the price. But otherwise it keeps me full and it does curves hunger. No stomach issues or anything others have caused. Im Happy just wished it had more servings

I feel like I have more energy and less appetite but so far haven’t lost any weight (with healthy eating and exercise) stay tuned!

Where Can I Buy This Product?

This product is available via the official RelaxSlim website ( and on the Amazon marketplace. We are unsure if this product is stocked in any stores.

Our Conclusion.

To conclude our RelaxSlim Metabolic Protein 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. By no means is this a bad shake – it’s got all the qualities a meal replacement shake should have (it’s affordable and nutrient-dense), we just feel that it’s a shame the formula won’t actually help users burn fat or boost their metabolism.

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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