The Good Guru Slim And Tone Original Review

There are certain fitness buzzwords I can’t stand to hear.

Superfood is one of them.

Even the idea that one single food can fix your whole diet is absurd.

Functional is another.

Not because functional strength is bad, but because it’s overused to the point where it’s meaningless.

Functional. Functional. Functional. There, now it sounds weird, so stop saying it.

But the cream of the crop? Toning…

Which brings me nicely to this week’s supplement review, where I’ll be taking a look at The Good Guru Slim & Tone Original Whey and running it through my deliberately harsh supplement rating system.

No product has received 5 stars to date (although this one got 4), and here’s an indication of where Slim & Tone is going.

the good guru toning whey

The Good Guru Slim And Tone Original Review

Before I proceed, allow me to explain why I have such a hearty dislike for the word “toning”.

You see, your muscles have the ability to get bigger (hypertrophy) or to shrink smaller (atrophy).

They cannot “tone”.

How “toned” you look ultimately just depends upon how much body fat you are carrying at any given time. That is all.

The word “toning” is nothing more than a marketing phrase, invented to sell products to women who have been fed the bulls**t myth that eating protein and lifting weights will turn them into an angry lumberjack.

So are we suggesting that drinking this (or any other) “toning” shake is going to reduce the amount of body fat you have?

Errr… no…. scratch that.

Hence the tagline on the cover of the tub:

“Good for weight loss, when used as part of a calorie controlled diet.”

You know what else is good for weight loss when used as part of a calorie controlled diet?

F**king everything.

Because controlling your total calorie intake is by far the most important aspect of any weight loss diet. (1, 2, 3, 4, 5, 6)

So when you read the tagline above, know that the last half of the sentence (“a calorie controlled diet”) is what’s actually getting you those results in the gym, not a protein shake.

The hype on the sales page even goes as far as to say this:

the good guru

Please, please, please, do not buy this or any other supplement with hopes it will replace the need to watch what you eat or go to the gym.

If you truly want to build your best body you won’t do it by drinking a magical drink, you’ll do it by controlling your food intake and training hard!

the good guru slim & tone

From Bad To Worse

OK, so now I feel bad…

I’m a nice guy.

Well, providing you’re not a Juice Plus rep.

And yet I’ve just savaged this pretty little supplement. Maybe I should start over?

But one look at the nutrition label of this product will tell you why my feelings of sympathy quickly disappeared after popping the hood.

the good guru slim and tone original

Per serving, you are getting:

  • 22.77g protein
  • 1.3g fat
  • 11.28g carbohydrates

Given that the name suggests weight loss, it would make sense for The Good Guru to pack the tub with a high protein, low fat, low carbohydrate shake.

But that’s not what we get.

Instead, we get a whopping 11.28 grams of carbohydrates in each shake. If you are having a few shakes a day, this mounts up very quickly.

Fair play to The Good Guru, though, they went balls-out with their decision to add a considerable amount of carbs to each shake by ensuring almost the entire amount comes in the form of sugar.

(10.4g out of 11.28g)

22 grams of protein is actually pretty decent for supporting muscle growth, but in the scale of the entire product this has to be considered a small win, akin to finding out you’ve won the lottery then discovering all you have to do to claim your prize is send your bank details to a Nigerian prince.

Because, given that you’re buying a protein shake to get more protein into your diet, a good way to judge the quality of a supplement like this is to work out it’s protein-per-serving ratio (i.e. what percentage of each serving is actually protein, and what percentage consists of ingredients which are not protein). To be expected, the high carb count wreaks havoc on this percentage.

I always advise clients to look for shakes which provide a protein-per-serving ratio of around 80%.

Unfortunately, each serving of The Good Guru Slim & Tone contains just 55% protein.

That’s the lowest ratio of any protein supplement I’ve reviewed to date, and it means that 45% of the ingredients in your scoop are, you know, not protein.

The flavor I’m reviewing here is vanilla. Things get worse if we switch to chocolate, which sees our carbohydrate content increase further still to 13.17 grams per shake, and our protein serving drops (yes, drops!) to 20.57g per shake. This leaves it with a protein-per-serving ratio of only 51%.

The whey protein formula itself is as simple as it gets – skimmed milk powder and whey protein concentrate.

So while you’re paying a price worthy of a cutting edge hydrolized whey protein isolate, or a top of the range protein blend, all you’re really getting is basic at best.

Remember the feeling of watching a Big Mac advert versus seeing an actual Big Mac?

It’s kinda like that.

the good guru slim and tone original whey

Enter The Matrix

Alongside our protein, fat and carbohydrates, we also get a few extra ingredients thrown in for good measure.

These include a handful of vitamins and fat burning elements.

  • Guarana

This seed contains more caffeine than coffee beans, and is primarily used for boosting energy levels before training. This sounds excellent, but the average dose of guarana is far too low to enable to caffeine to become an active ingredient! Plus, research is incredibly scarce when it comes to showing guarana’s fat burning effects, with only one study (using rats, not humans) showing slight improvements, although it is often billed as a fat burning supplement. (7)

  • Green Tea Extract

You’ll find this very popular substance in almost every fat burner and wellbeing supplement on the market. But despite it’s fame, research does not support it’s billing as a fat burner. In fact, any slight fat burning effects would require a huge dose, and even then they depend wholly on the participant being caffeine naive. (8, 9, 10)

  • Zinc

As described on the product, zinc can help with a range of issues covering healthy hair and skin. (11, 12)

  • Vitamin C

Vitamin C will improve your immune system. Alongside a few other key players, namely vitamins B6 and B12, supplementing vitamin C is a good way to provide your body with some useful health benefits. (13)

The problem here is not the inclusion of green tea extract, guarana or vitamin C.

It’s the fact that they’re all hidden behind a proprietary blend.

the good guru slim and tone nutrition

Proprietary blends are always a massive turn-off, because they represent the dark side of the supplement world. A facet from days gone by, before the supplement-buying public got wise to the tricks manufacturers were pulling in order to sell below-par formulas at top tier prices…

Essentially, they are using a supplement industry loophole by stating which ingredients are in the formula, but declining to tell you the dose.

To me, this has always been a good indicator of a poor product.

After all, if a company has a great formula to boast about then they surely will.

the good guru meal replacement shakes

The Meal Replacement Myth

The final nail in the coffin, so to speak, of Slim And Tone Original whey is that we are encouraged to replace meals with shakes.

This is a sure-sign of a product which you should steer clear of.

Supplements are designed to be a part of a healthy diet, and can definitely help you to lose weight, support your workouts and curb snacking between meals. But they are not – and they should never be – designed to replace meals.

Yet on the sales page for this very product, we are advised to use it as a meal replacement shake.

There are a few reasons why this is bad advice.

Whey digests very quickly and will not suppress your appetite as much as casein, or protein obtained via food itself. There is zero fiber in this product, and also zero slow-release carbohydrates, so this “meal replacement” is not going to achieve the desired effect of creating the feeling of fullness you’d get from a balanced meal.

But, aside from the scientific facts shown above, the main reason I dislike a supplement company advising people to replace meals with shakes is because it allows the company to take credit for the trainees hard work.

You can see evidence of this with the likes of Juice Plus.

How many times have you heard of a friend starting something like Juice Plus, or Herbalife, and proclaiming it to be the solution to all of their weight loss problems?

Could it be the fact they’ve finally started to eat less junk food, and started exercising regularly? No, of course, not, it’s this magic f**king pill…

the good guru slim and tone review

All it’s really helped you to do is create a calorie deficit. The product itself was not the reason you lost weight.

For example, if you are currently consuming a breakfast with 450 calories and an afternoon snack containing 300 calories, replacing both with a shake would see you create a 468 calorie deficit.

Even though this product itself contains a basic protein formula, a large serving of sugar, lots of vitamins and fat burning ingredients which are in too low of a dose to have any positive effect, and it’s grossly overpriced, that 468 calorie deficit will do the job for you.

(Maths on ‘overpriced’: £19.95 for a 1kg tub, two shakes per day would see the tub last only ten days.)

So, another way to achieve the exact same results is to save yourself the £59.85 per month they want for this bulls**t, eat a bit less rubbish, or use your money to buy a protein supplement which gives you a better protein-per-serving ratio.

“Oh, but it’s gluten free…”

Yeah, so’s my d**k.

The Good Guru Slim & Tone Original Whey Review – The Final Verdict

Well, this is awkward…

Now I’m left with the job of scoring this product so that you guys can rush out and buy some, right?

Look, I’m not going to beat around the bush here – I’m not a fan.

It’s easy to see why:

  • far too much sugar
  • no slow-release carbohydrates
  • no fiber
  • a basic whey protein formula
  • just 55% protein-per-serving
  • a proprietary blend of vitamins and fat burning ingredients
  • instructions to use as a meal replacement
  • overpriced

As such, The Good Guru Slim & Tone Original whey protein gets 1 star. Done.

Of course, this is merely my professional opinion. If you’d like to check the product out for yourself, click here. Personally, I think you should pick up a superior whey protein supplement alongside a good multivitamin, and blow this out of the water.

the good guru slim and tone original review


  1. Leibel, R.L., et al. Energy intake required to maintain body weight is not affected by wide variation in diet composition. Am J Clin Nutr. (1992)
  2. Golay, A., et al. Similar weight loss with low- or high-carbohydrate diets. Am J Clin Nutr. (1996)
  3. Golay, A., et al. Weight-loss with low or high carbohydrate diet. Int J Obes Relat Metab Disord. (1996)
  4. Luscombe-Marsh, N. D., et al. Carbohydrate-restricted diets high in either monounsaturated fat or protein are equally effective at promoting fat loss and improving blood lipids. Am J Clin Nutr. (2005)
  5. Raatz, S. K., et al. Reduced Glycemic Index and Glycemic Load Diets Do Not Increase the Effects of Energy Restriction on Weight Loss and Insulin Sensitivity in Obese Men and Women. J Nut. (2005)
  6. Johnston, C. S., et al. Ketogenic low-carbohydrate diets have no metabolic advantage over nonketogenic low-carbohydrate diets. Am J Clin Nutr. (2006)
  7. Rodrigues, M., et al. Herb-Drug Interaction of Paullinia cupana (Guarana) Seed Extract on the Pharmacokinetics of Amiodarone in Rats. Evid Based Complement Alternat Med. (2012)
  8. Hursel, R., et al. The effects of green tea on weight loss and weight maintenance: a meta-analysis. Int J Obes (Lond). (2009)
  9. Westerterp-Plantenga, M.S. Green tea catechins, caffeine and body-weight regulation. Physiol Behav. (2010)
  10. Diepvens, K., et al. Obesity and thermogenesis related to the consumption of caffeine, ephedrine, capsaicin, and green tea. Am J Physiol Regul Integr Comp Physiol. (2007)
  11. Franco-Vidal, V., et al. Zinc protection against pneumolysin toxicity on rat cochlear hair cells. Audiol Neurootol. (2008)
  12. Verma, K. C., et al. Dhamija SK. Oral zinc sulphate therapy in acne vulgaris: a double-blind trial. Acta Derm Venereol. (1980)
  13. Douglas, R. M., et al. Vitamin C for preventing and treating the common cold. Cochrane Database Syst Rev. (2007)


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