Watchdog Approved Diet Pills


Dietrim is manufactured by Vitabiotics Ltd, a popular supplement company based in the UK. Whilst not advertised specifically as a diet pill, it claims to aid in balancing your body fat to lean muscle ratio. Is this supplement effective at helping you look lean, slim and trim?

One of most well known supplement companies in the UK, Vitabiotics look to support most of today’s modern ailments. We look at Dietrim in more detail to see if this could work for you.

Dietrim Pros

  • Reputable manufacturer with 40 years experience
  • Inexpensive supplement

Dietrim Cons

  • Doubt as to enough ingredient quantity
  • Lacks clinical data to support claims
  • Lack of money-back guarantee
Watchdog Rejected Diet Pills


Dietrim Review

Dietrim Facts

  • Manufactured by Vitabiotics Ltd in the UK
  • Reputable company producing supplements for 40 years
  • Free UK delivery option available

You are most likely familiar with the company behind Dietrim, certainly if you’re based in the UK, as they are prominently featured in magazines, advertisements and in your high-street shops. Vitabiotics is a popular UK supplement company that boasts 40 years of history in the industry.

Originally launched in the 1970’s with a mouth ulcer treatment and multivitamin supplement, the company has gone from strength to strength. With a huge range of supplements on offer, they have covered most of the bases to ensure they have a product to support almost any condition or improvement you are looking for!

Vitabiotics have a number of ambassadors for their supplements from professional swimmer Mark Foster, James Andersen the World number two test bowler and Andy Frost, the UK number two Hammer thrower. All claim to have used Vitabiotic supplements; although it’s worth bearing in mind they used the Wellman supplement and not Dietrim.

As we would expect from such a good quality retailer, we could find no online reports of scams or rip-offs for this supplement or for Vitabiotics.

Dietrim is recommended to take alongside a healthy diet and regular exercise programme for between 3 and 6 months for the best results.

Dietrim Concerns:

  • Insufficient information available to support the claims made
  • Doubt there is enough of the main ingredient (CLA) to promote weight loss?
  • Lack of any money-back guarantee

What Does Dietrim Claim To Do?

Dietrim claims to be a “revolution in diet support” that has been developed from the…

very latest scientific research, designed to help you maintain an optimum body composition and stay in shape

Vitabiotics claims this supplement is different from others in that it relies on “nutritional science”. It’s this that the manufacturers also claim that Dietrim can…

help you to maintain a healthy metabolism and protect against the extra free radicals generated during exercise.

Summary of the benefits of Dietrim according to Vitabiotics:

  • Help to maintain a healthy metabolism
  • Protect the body from free radical damage, particularly during exercise
  • Essential nutrients which may be lacking while you are dieting

So What Is Dietrim and What Are The Ingredients For Dietrim?

Each Dietrim capsule contains 26 of what they call “bio-active ingredients”, which the main ingredient includes the licensed compound Tonalin CLA.

Let’s take a look at the main ingredients in more detail:

  • Conjugated Linoleic Acid (1,600mg): Naturally derived from the safflower plant and said to help fat metabolism, which may promote weight loss. The type used in this supplement is Tonalin CLA, which is exclusively licensed from the Cognis Group. Formed from linoleic acid, it’s been suggested that we are getting a lot less CLA in our diet compared to 30 years ago. Studies suggest you need around 3.2g per day for any significant weight loss effects, this means that Dietrim unlikely contains enough! See our “does it work” section for more information.
  • Papain (Papaya Extract 40mg): Tropical fruit that has lots of nutrients and vitamins, used a lot in traditional medicine for digestion, boost health, reduce free radical damage. Although said to promote weight loss there is little to no evidence that supports this claim!
  • Cinnamon Bark Extract (40mg): A traditional spice that tastes sweet and popular topping on coffee and latte. Studies seem to support claims that cinnamon can aid the digestive system and help to lower blood sugar levels.
  • Chromium (150mcg): A favourite ingredient found in many diet pills as it’s said to help burn and boost energy levels. The National Institute of Health did some in depth research into ALL the published studies claiming Chromium can help lose fat and came to this conclusion:

Chromium supplements are sometimes claimed to reduce body fat and increase lean (muscle) mass. Yet a recent review of 24 studies that examined the effects of 200to 1,000mg a day of chromium (in the form of chromium picolinate) on body mass or composition found NO significant benefits” and

In several studies chromium’s effects on body weight and composition may be called in to question


  • Co-Q10 (10mg): Suggested to help boost memory and cognitive ability but we are not aware of ANY studies that it’s effective for weight loss. Most people consume enough from their diet so additional supplementation is probably not needed.
  • Selenium (125mcg): Important nutrient that’s contained in enzymes with a large number of critical roles in the body, such as antioxidant functions, male fertility, immunity and thyroid metabolism.
  • Vitamins and Minerals: There is a range of supporting micro-nutrients that are good sources of antioxidants that ensures you are eating the recommended daily amounts. There are suggested to help protect against free radical damage during exercise.

So What Does All This Mean?

Dietrim is not a dedicated diet pill as such and is mostly a combination of vitamins and minerals with Tonalin CLA.

This means that the “diet support” bit pushed by this supplement is dependent on the CLA ingredient, which does have scientific data to backup the claims of supporting weight loss. There is an excellent article here about the benefits of CLA for weight loss,

As we will look at in closer detail later in our “does it work” section, this supplement will only work IF enough of this key ingredient is present.

Does Dietrim Have Any Side Effects?

When taken in the recommended dosages Vitabiotics report no side effects from Dietrim. That said, some consumers have reported looser stools when taking higher dosages.

Caution: As is the case for diet pills this supplement is not recommended during pregnancy. The manufacturer also suggests avoiding if you’re a nursing or expectant mother (Vitabotics have another supplement called “Pregnacare” suitable in this case).

Any Dietrim Reviews From Customers?

Although a highly regarded retailer, we could find next to no reviews or independent testimonials for this supplement.

Only one consumer at the time of writing this review has posted feedback on Amazon, they reported in September 2008 the following…

I would recommend these tablets to anyone who is dieting as it just seems so sensible to take them. They aren’t a weight loss tablet, they are tables which help maintain a healthy metabolism.

So Does Dietrim Work?

We started by looking into the main active ingredient in Dietrim, Conjugated linoleic acid (CLA). The official site is fairly scarce when it comes to references to clinical studies so we needed to look into these ourselves.

The research for CLA shows inconsistent results for humans whilst effective for reducing fat in animals. This led to a comprehensive review of 18 studies on the effects of CLA supplementation and fat loss to be undertaken by Whigham et al and published in The American Journal of Clinical Nutrition in May 2007.

They found that an average dose of 3.2 g CLA per day was effective at promoting fat lose. This means there is not enough CLA in Dietrim!

Lastly, the somewhat abundant supply of vitamins and minerals could be useful for those consuming insufficient amounts from their diet; these are easily obtained from small changes to diet or by using a cheaper multi-vitamin.

Where Can I Buy Dietrim?

You can buy Dietrim online or on the UK high street from selected shops, such as Boots and Superdrug.

One box of 60 capsules is enough for one month and costs only £6.99 to £14.95.

Ordering Dietrim from the official Vitabiotics website means you can qualify for free UK delivery, which takes 5-7 working days. Alternatively, if you want it earlier you can opt for the Express Delivery option, which takes 1-2 working days. If you’re outside the UK there is worldwide shipping option.

What About A Guarantee

There appears to be no money-back guarantee on offer.

Watchdog Verdict

Vitabiotics offer an extensive range of health and weight loss products and are considered to be one of the top players in the UK supplement market. Even still, this supplement is lacking the qualities of a great “approved” dieting supplement.

Apart from Dietrim not being a diet pill as such, the claims it can support a healthy metabolism whilst dieting don’t appear to be supported by any tangible evidence. The studies we found suggest there is insufficient of the main ingredient CLA to promote any significant weight loss!

Whilst it’s true there are a bunch of vitamins and minerals that could be useful if they are missing from your diet, you could achieve the same results taking a much cheaper multi-vitamin!

The lack of a money-back guarantee and scarcity of consumer testimonials means that despite the high pedigree of this retailer we are going to reject Dietrim.

Watchdog Rejected Diet Pills

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Why is Superfruit Slim Watchdog Approved?

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Disclaimer: Our reviews and investigations are based on extensive research from the information publicly available to us and consumers at the time of first publishing the post. Information is based on our personal opinion and whilst we endeavour to ensure information is up-to-date, manufacturers do from time to time change their products and future research may disagree with our findings. If you feel any of the information is inaccurate, please contact us and we will review the information provided.

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