Met RX Tonalin CLA 1000 Review
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Met-RX Tonalin CLA 1000 Review

Welcome to our Met-rx Tonalin CLA 1000 review. Met-RX Tonalin is a diet supplement designed to help you lose fat in a safe and sustainable way. But how will it work for you? We’ll start this off with a short summary followed by a more detailed analysis below.

[MET RX TONALIN CLA SUMMARY] This is a disappointing supplement. It only has 1 ingredient – CLA. One ingredient alone isn’t enough to lead to any significant weight loss, but if it was at least an ingredient that works, we’d rate it higher. CLA doesn’t work. It affects PPAR, a system in your body that influences weight loss. But CLA’s effects on PPAR are too weak to make a difference (source: Met-RX Tonalin CLA is a waste of money.

What is Tonalin CLA?

Tonalin CLA is a diet supplement people use to help them burn fat and gain lean muscle. Tonalin is a high-quality CLA, or Conjugated Linoleic Acid, that is safe to consume and stimulant-free.

CLA is a family of at least 28 naturally occurring polyunsaturated fatty acids found in animal meat and dairy, and it has recently become a popular dietary supplement.

The main purpose of CLA is to reduce body fat and the sole component of Tonalin is the safflower oil. The safflower oil is a vegetable oil made from a safflower plant for which is said naturally burns fat.

How does it work?

This supplement works on the basis of using the remaining fat in your body for energy. In short, the fat that your body doesn’t use for energy is normally transported to fat cells, with the help of the enzyme lipoprotein lipase. This is where CLA comes into play. CLA claims to reduce the levels of this enzyme and sends fat to muscles to be used for energy, instead of fat cells.

Here is how it works:

  • It decreases the number and size of your fat cells (adipocytes), thus lowering your body fat mass
  • It decreases the activity of LPL enzymes which help store triglycerides (fats) in fat cells
  • It increases apoptosis (the rate at which fat cells disintegrate)
  • It increases your CPT enzyme activity so fat is burned faster

The company behind Tonalin CLA says it has been manufactured to help you improve your body composition by helping you burn fat, while preventing fat cells from refilling and storing in your body. The main purpose of Tonalin is not to prevent hunger, but to burn calories and modify your metabolism. However, what’s interesting is that none of these claims are backed by reliable clinical research.

MET-Rx CLA Tonalin 1000

In this article, we will talk specifically about MET-Rx CLA Tonalin 1000. MET-Rx is an American nutritional supplements brand, mostly known for pioneering meal replacements as a new category of bodybuilding supplements.

There are only a few ingredients, and all are clearly labeled. It is derived from all-natural safflower oil and has no other natural or artificial stimulants. It is also ideal for people sensitive to the effects of caffeine and other thermogenic ingredients.


MET Rx Tonalin CLA 1000 Ingredients
  • 1 000 mg of Tonalin from safflower oil and it contains 78-84% of CLA

Other ingredients include:

  • Gelatin- protein derived from collagen; said it is used for weak and brittle bones, and osteoarthritis
  • Glycerin- thick and colorless liquid derived from fats and oils, can be added to dairy products as sweeteners, canned goods, processed fruits, energy bars, and other foods as it is chemically a sugar alcohol
  • Caramel color- water-soluble food coloring made by heating carbohydrates
  • No artificial or natural stimulants

It is sold as a post-workout and a pre-workout supplement that promotes healthy body composition. It comes with a toning formula and elements that help promote optimal bone density (gelatin) and lean body muscle mass.

It says it has been designed to provide a precise ratio of fatty acids to support your body composition but provides no more explanation on the statement.

However, as a fat burner, it is unusual to see a product that doesn’t contain ingredients that can help curb your appetites, such as green tea extracts, cayenne pepper seeds, caffeine, or fibers, such as glucomannan.


So, how to take Met-RX CLA?

The serving size is 1 soft gel that contains 10 calories, 1g of total fat, and 1g of Tonalin CLA. This specific Tonalin CLA brand should be taken as two pills two times daily (for adults), preferably with meals.
In general, Tonalin CLA should be limited to no more than 3 pills a day, two just before the biggest meal of the day and the final one 4-6 hours later.

What do the Customers Say?

There are many different reviews on Tonalin CLA and its effect. It was recommended on The Dr. Oz Show, which naturally increased sales, but people had differing results and reviews.

Some were impressed, others not so much. You need to know that every supplement affects a user differently. It depends on one’s age, gender, pre-existing medical conditions, and individual body chemistry.

There has been a lot of talk about this supplement, so we will list the facts that we know for sure: The Mayo Clinic states that CLA has possible modest benefits as a weight-loss supplement, but also might have some side effects, such as the upset stomach, nausea, constipation, and it may lower good cholesterol and increase bad cholesterol.

Moreover, there have been some studies that wanted to see the effects CLA has on weight loss. In the Journal of International Medical Research, a study was published that concluded that CLA reduces body fat, but not body weight in healthy humans of normal body weight who exercise regularly.

Another study focused on healthy, but overweight individuals showed it was well tolerated (study lasted 24 months) and it confirmed it decreased body fat mass.

Some studies from Italy show that the CLA has the potential to cause vascular damage in the long term, while the European Food Safety Authority rejected the idea that CLA and body fat mass are linked, further stating the need to gather more data and do more research. Some studies from the Netherlands state the CLA is not as beneficial as some claims might say, while its effects on fat loss are modest.

Possible Side Effects

Some side-effects you need to be aware of:

  • CLA supplements may cause upset stomach, nausea, diarrhea, and fatigue
  • CLA supplements may worsen insulin resistance in people with diabetes or metabolic syndrome
  • It is not recommended for children or women who are pregnant or breastfeeding
  • It may lower HDL and cause “fatty liver”


If you buy the product on the MET-Rx website, you will pay $17.99 for one 90-capsule bottle. You can also buy a 6-pack for $98.94 or 12-pack for $179.88.

It falls somewhere in the middle range when it comes to prices as there are some that are a bit cheaper (Tonalin CLA by VitaminShoppe is $14.99 for 90 soft gels) and there are some more expensive (Tonalin CLA by Solgar for $19.11 for 60 soft gels).

However, buying MET-Rx Tonalin CLA from Amazon probably makes it the cheapest option at only $9.89 for 90 soft gels.

Is it Worth A Try?

So that concludes our Met-RX Tonalin CLA 1000 review. Is it worth the money?

In short, there is insufficient data. The reviews are differing, some love it, some are disappointed. As such, you shouldn’t expect much from CLA alone and should look to combine multiple proven ingredients in order to see real results in the mirror.


  • Top quality of CLA
  • Supports regular exercise and a healthy diet
  • Some studies do support its claim it can lead to reduced body fat
  • Cheaper than most other Tonalin CLAs


  • Doesn’t suppress appetite or hunger
  • May cause nausea, fatigue, and an upset stomach
  • Because of gelatin it is not suitable for vegans

What’s Better?

We do independent analysis on over 40 fat burners every year, searching for the most effective, science-backed formula on the market.

Some of our criteria include:

  • Must support fat burning naturally and safely
  • 100% clean, legal ingredients
  • Energy, Focus & Metabolism
  • Effective Appetite Suppression
  • Brand Trust
  • Value for money

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