We’ve hearing a lot of buzz about Tonalin CLA, so we examined the ingredients, side effects, clinical research and customer service quality. We analyzed hundreds of user comments and reviews from around the web. Then, condensed and refined to give you the info you need.
What is Tonalin CLA?
First off, Tonalin CLA is a fat burner.  The ingredients are conjugated linoleic acid from safflower oil, gelatin, glycerin, water, caramel color and mixed tocopherols. You’ll take two capsules with your largest meal and another one later in the day. The supplement supposedly burns fat and increases lean muscle mass. One of the benefits is that it’s readily available.
Tonalin CLA is marketed by BASF; a company that was founded in the late 1800’s. It’s available in vitamin stores and through online retailers. We like that conjugated linoleic acid has been studied  and that we found some favorable customer comments, but read on…
Tonalin CLA Side Effects – “Cause for Concern?”
The first concern we came across with Tonalin CLA side effects was whether they were positive or negative. “The website states this one is well-tolerated with no adverse events ,” said our Research Editor. “According to some dieters, that’s not the case.”
“I used this for about a week until I noticed my face was breaking out. After I stopped taking this I noticed my skin starting to get back to normal,” said one user.
“The first 1000 mg I took (on a full stomach) gave me a headache and nausea that lasted until the following day. I’ve never experienced such a thing with any other supplement I’ve taken over the years,” said another.
We can’t say that every dieter had the same experience. One said, “What I like is not feeling any side effects concerning my stomach.”
Another shared, “Tonalin didn’t give me any noticeable side effect at all which really pleases me.”
No Results – “Another Concern?”
Based on Tonalin CLA reviews, claims of weight-loss don’t match user results. “I kept my diet the same and my exercise regiment the same. I’ve taken this product for one month and have not lost any weight ,” said a customer.
“I started using 1 capsule with each meal as directed. No results after 6 weeks. Started using 2 capsules with each meal. I think I might be losing some fat.” said another. 
We did find a few users who saw positive changes. As one experienced, “These help me lose some weight and I noticed an uptick in my metabolic rate,” commented a user. 
Another reported, “It uses NO stimulants it will take time to work, at least 6 to 8 weeks. ”
Our research has shown if there is some particular part of a supplement that is especially troublesome, such as lack of effectiveness, the likelihood of long-term success is slim. If Tonalin CLA doesn’t produce results, we question the value of the product to the consumer.
The Science – “Clinical Evidence?”
The official Tonalin website claims this one is “clinically proven”. There are several studies showing the effectiveness of cla.  After a bit of digging, we the company stated that studies didn’t evaluate the effects of body fat reduction. For us at DietSpotlight, we like seeing solid science used to support claims. But, if the findings don’t paint a complete picture, we become concerned.
The Bottom Line – Does Tonalin CLA Work?
So, will you lose weight with Tonalin CLA? Well, we like that it contains natural ingredients and is affordable, but we’re concerned about the science not showing it eliminates visceral fat  and not proving the immune system in healthy individuals would improve.  We’re also a bit skeptical about this one because customer comments are talking about negative side effects and lack of results.
If you want to enhance your weight-loss, we suggest going with a supplement that’s packed with clinically-tested ingredients, that’s not associated with harmful side effects.
Among the best products we’ve seen this year is our supplement called Dietspotlight Burn. It blends four clinically-tested ingredients, with results often found in publications such as The American Journal of Clinical Nutrition.
Additionally, we’re so confident in our supplement, that we’re offering a Special Trial Offer, which is a great sign.
Previous Tonalin CLA Review (Updated September 17, 2014):
What is Tonalin CLA
Tonalin CLA (Conjugated Linoleic Acid) is a dietary supplement that aims to increase the user's lean muscle mass, while reducing unwanted body fat. This diet product comes from safflower oil and is claimed to hinder "lipoprotein lipase," which is an enzyme that's commonly known for breaking down fat cells in food. This process is supposed to result in less fat being absorbed into the dieter's body, hence assisting with weight loss and remaining thinner. Like many other dietary supplements, Tonalin CLA is intended to be used in conjunction with a healthy, well-balanced diet and a regular fitness regimen. If time-constraints are an issue, Hydroxycut is a thermogenic fat burner intended for men and women to boost the metabolism, increase energy levels and assist with weight-loss.
The key active ingredient incorporated into Tonalin CLA is Conjugated Linoleic Acid. This substance naturally comes from animal foods, meats, safflower oil and dairy products. Overall this diet supplement aims to block unwanted fat from being absorbed into the body. Tonalin CLA does come with a few potential side effects, which can involve diarrhea and/or upset stomach. This diet product can be purchased online as well as in most drugstores and nutritional supplement stores. Tonalin CLA is Ephedra-free and the basic form (Conjugated Linoleic Acid) has been around for over 25 years. As with many other diet supplements, systems, pills and products, the results of Tonalin CLA may vary from user to user. This can depend on factors such as body type, metabolism, diet and how much the user exercises.
Tonalin CLA - List of Ingredients
Conjugated Linoleic Acid is the only ingredient we found.
Tonalin CLA is a diet product that can be used along with a healthy diet and regular exercise in order to reduce unwanted body fat. Even with excess stubborn fat, GNC's line of products help with weight-loss. GNC Total Lean CLA and GNC Burn 60 are both fat burners that help with maintaining lean muscle mass, while supporting a healthy body composition. This product endeavors to prevent fat absorption and improve lean muscle mass. The primary ingredient found in Tonalin CLA is Conjugated Linoleic Acid, which often comes from safflower oil. This product appears to be marketed toward men and women who wish to lose excess weight. Tonalin CLA can be purchased in most drugstores, nutritional stores and online. Tonalin CLA does not aim to suppress hunger, boost the dieter's metabolism or burn calories faster.
- Tonalin CLA can be conveniently purchased in many stores and online.
- Tonalin CLA is Ephedra-free.
- Tonalin CLA supports a healthy diet and regular exercise.
- The active component (Conjugated Linoleic Acid) of Tonalin CLA has been around for over 25 years.
- The official Tonalin CLA website does not appear to offer a money-back guarantee.
- Tonalin CLA does not assist with calorie burning or appetite suppression.
- Tonalin CLA may cause an upset stomach and diarrhea.
- Some ingredients found in Tonalin CLA may not be suitable for some individuals.
- Product may cause acne. (See reader comments.)
- The official website lacks free trial samples of Tonalin CLA.
Tonalin CLA - The Conclusion
Tonalin CLA offers an interesting take on getting rid of unwanted body fat. The notion of taking a supplement that aids with the reduction of fat absorption may sound appealing to some dieters. On the other hand, it would be nice to see more substantial clinical evidence backing Tonalin CLA. Furthermore, Tonalin CLA may be more appealing if the official website offered a money-back guarantee, or at least a free trial of the diet product.
Tonalin CLA is a brand of conjugated linoleic acid sourced from safflower oil. There is some clinical evidence that it could help boost weight-loss. However, not all studies reflect results for all genders or ages. It is sold by various companies with all products using the same name.
Tonalin CLA Ingredients and Supplement Facts
Serving Per Container: Varies
|Amount per Serving||% DV|
|Conjugated Linoleic Acid (safflower oil)||Varies||*|
Other Ingredients: None
We dug deep into the Tonalin CLA ingredients to give you the details you need.
Also known as Conjugated Lineolic Acid, Tonalin is a brand of this supplement. CLA is a naturally occurring substance found in animal foods, safflower oil, and dairy products. Supplements like this one are available for those who don’t get enough of it in their diets naturally. This product contains 1,000 mg, and meant to be taken multiple times a day with meals. The average diet supplies anywhere from 15 to 74 mg of CLA daily, so it is easy to see why some may want to consider supplementation.
What is it Supposed to Do?
CLA is supposed to decrease the size of fat cells and claims to block fat from being stored there. It’s thought to also help improve immune function. It is sometimes used to treat high blood pressure, and may be useful in treating hardening of the arteries, making it a heart healthy supplement.
According to a study published in International Journal of Obesity, “The regain of fat-free mass was favorably, dose-independently affected by a 13-week consumption of 1.8 or 3.6 g CLA/day and consequently increased the resting metabolic rate. However, it did not result in improved body weight maintenance after weight loss.” As such, CLA may help with weight-loss, but for best results, should be included with diet and exercise. And even still, supplementation has also been shown in some studies to cause weight gain.
- 1. Weight loss supplement - conjugated linoleic acid - shows nasty side effects (2007). News Medical Life Sciences. December 7, 2016.
- 2. Can CLA cause weight gain? (Not listed). Exercise.com. December 7, 2016.
Tonalin CLA Side Effects:
Taking a natural weight-loss supplement doesn’t guarantee you’ll never have to worry about headaches or upset stomach. Even a natural formula has the ability to cause a negative reaction. Tonalin CLA side effects are not common in users, but that doesn’t mean they don’t exist for some.
Usually, skin irritation is described as a rash or an itch. It may include sores or bumps, red skin, scaly skin or a burning feeling, as well. 
What causes skin irritation?
Skin irritation has several causes, but most commonly, it’s associated with an allergic reaction. It may also be a sign of certain diseases, such as chickenpox or measles.
A sick feeling in your stomach may be described as nausea. It may feel like you’re going to vomit, but nausea isn’t always followed by vomiting.
What causes nausea?
Nausea may be caused by an illness, viral infection, bacterial infection, food, a smell, medication, supplements or a number of other possibilities. At times, it’s caused by food poisoning. The cause of nausea may be easy to pinpoint based on when it occurred.
Before the feeling becomes so strong that you classify it as nausea, it may be called an upset stomach. This is a feeling of discomfort in the abdomen, usually associated with the stomach flu or another stomach illness.
What causes upset stomach?
An upset stomach may be a sign of something common, such as the flu, but it could also be a sign of something more serious, such as Crohn’s disease. It may be caused by a foodborne illness, bowel inflammation, viruses, parasites or food-related allergies. 
Any type of pain felt in your head is classified as a headache. It may be pain behind your eyes or in your sinuses. There are several different types of headaches and they can range from minor to very serious.
What causes headaches?
Hundreds of things may cause headaches from an allergic reaction to the weather outside. Nerves in and around the head are the cause of the pain. Often, stress, anxiety, lack of sleep, illness or medication side effects are at the root of the pain.
It’s not a guarantee that you’ll suffer from Tonalin CLA side effects, but some users have reported skin irritation, nausea, upset stomach and headaches, among others. It’s always a good idea to check with a physician before starting a new supplement, especially if you’re under 18, on current medication, suffering from a current medical condition or you’re pregnant or nursing.
Tonalin CLA is a fat burner that comes from safflower oil. It is used to kill fat cells and stop them from re-entering the same area. We found user comments that showed the side effects of Tonalin CLA, even though they may not be common.
“The side effect after a week [were] itching, burning bumps on my hands, upset stomach and diarrhea.” Deb
“Started using Weight Management Tonalin CLA 3 days ago, worst side effects ever. I experienced vomiting, diarrhea and acne in all kinds of places.” Mary
“Have experienced an irregular period, excessive gas and acne from taking CLA…I had an abnormal amount of gas and bloating…” Lily
“I’ve been taking it a week now, and my legs hurt terribly and tons of bruises.” Ken
“I had numbness in my arms, a huge rush of energy, dull pressure headache and my throat has swelling.” Kira
“I have only taken it 2 times in one day and both times my throat felt like it was swelling up. I also have a headache which rarely happens to me.” Patty
“It’s so unfortunate but after taking it for 2 days I got huge cystic, painful acne on my face, neck and back…My stomach has also been pretty bloated too.” Jake
“[The] pain started right under left rib cage. Was like a big hard knot. Then felt like my intestines on the left side were twisted.” Simone
“I just took Tonalin CLA last and spent the night with excruciating leg pains.” Gloria
“But now I am experiencing the worst pains and cramps in my stomach from these pills…Patiently waiting for the bloating cramps and stomach pains to go away!” Jenn
Tonalin CLA Questions & Answers:
We refined hundreds of user comments about Tonalin CLA into this helpful FAQ.
What are the side effects of CLA Tonalin?
An alternative name of the brand, some Tonalin CLA side effects that have been reported by dieters include upset stomach, nausea, headache and skin irritation.
What is in CLA Tonalin?
Tonalin CLA ingredients are Tonalin conjugated linoleic acid from safflower oil, gelatin, glycerin, water, caramel color and mixed tocopherols.
What is the active ingredient in Tonalin CLA?
The active ingredient in Tonalin CLA is Tonalin conjugated linoleic acid from safflower oil.
Does Tonalin CLA work?
There are studies related to the effectiveness of conjugated linoleic acid. The available research doesn’t relate specifically to the formula in Tonalin CLA.
How much does a bottle of Tonalin cost?
A bottle of Tonalin CLA costs $19.29 for 60 capsules. A 90-day supply runs $27.09.
How do you take Tonalin CLA?
You should take one Tonalin CLA capsule, three times per day with food. When taken as directed, it’ll last 30 days.
What do users like about Tonalin?
Some users like the affordability of Tonalin CLA and that the small size of the capsules make it easy to use.
What do users NOT like about Tonalin CLA?
We found the some users didn’t like that Tonalin CLA contained soy and that the product isn’t as effective as claimed.
Who makes Tonalin CLA?
BASF Personal Care and Nutrition GmbH are the makers of Tonalin CLA. 
Does Tonalin CLA contain soy?
Yes, Tonalin CLA contains soy from the mixed tocopherols.
Do I have to exercise on Tonalin?
No, you don’t have to exercise, but the company recommends adding fitness to improve results.
Do I need to diet on CLA Tonalin?
No, you don’t need to diet on Tonalin CLA, but the recommendation from the company states users should consume no more than 2,000 calories while using the product.
Does Tonalin CLA come with a guarantee?
Yes, Tonalin CLA comes with a guarantee. You have 30 days to return the product for a full refund.
Do you know of any special deals or discounts on CLA Tonalin?
There are special deals and discounts on Tonalin CLA. You will receive free shipping on orders of $10 or more.
- 1. CONJUGATED LINOLEIC ACID (Not listed). WebMD. December 7, 2016.
- 2. Perspective on the safety and effectiveness of conjugated linoleic acid (2004). The American Journal of Clinical Nutrition. December 7, 2016.
Tonalin CLA Scientific Abstracts:
There had been 63 participants in the study (CLA, n = 30). Following a period of 12 weeks, when compared to baseline, the body weight, body mass index, total fat mass, waist-to-hip ratio, subcutaneous fat mass, and fat percentage were reduced within the group (P < 0.05). The subjects were stratified by body mass index as well as gender. Body weight, body mass index, waist-to-hip ratio, subcutaneous fat mass had been reduced in 27 of the participants with a body mass index ≥ 27. Levels of total cholesterol, low-density lipoprotein, triacylglycerol, and plasma fasting glucose were elevated. Those of high-density lipoprotein had reduced following 3 months of CLA treatment. The changes that were experienced had not been substantially different from baseline. CLA supplement for 12 weeks in overweight and obese Chinese patients had lower obesity indices, without any obvious negative reactions. 
During the final 8 weeks of each 16-weeks diet period, there had been a significant decrease in body mass index while on CLA. Safflower oil (SAF) had no effect on body mass index or on total adipose mass, however decreased trunk adipose mass (P = 0.0422) and also elevated lean mass (P= 0.0432). Safflower oil had also greatly reduced fasting glucose (P = 0.0343) while elevating adiponectin (P = 0.0051). There had been no alteration noticed in dietary energy intake, fat quality, and total fat intake for either intervention in either diet spans. CLA and SAF supplement treatment caused altering effects on body mass index, lean tissue mass, and total and trunk adipose mass in obese postmenopausal women who had type-2 diabetes. The oils may have beneficial effects on weight-loss, glycemic control, or both. 
CLA seems to cause fat mass loss as well as elevate lean tissue mass in rodents; however results from 13 controlled studies in human subjects had not discovered sufficient evidence to support CLA’s effects on body weight or promotion of repartitioning of body fat as well as fat free mass. There is evidence building regarding CLA’s effect on mice and humans stating CLA isomer trans-10, cis-12 could produce insulin resistance and liver hypertrophy through redistributing fat depositions which are similar to lipodystrophy. CLA reduces fat in both bovine and human milk. It had been concluded that CLA seems to hinder elevations in body weight and body fat in animals, but CLA isomers which are sued as dietary supplements do not appear to be effective as a weight-loss tool for humans. 
- 1. Effect of conjugated linoleic acid supplementation on weight loss and body fat composition in a Chinese population (2012). Nutrition. November 8, 2016.
- 2. Comparison of dietary conjugated linoleic acid with safflower oil on body composition in obese postmenopausal women with type 2 diabetes mellitus (2009). The American Journal of Clinical Nutrition. November 8, 2016.
- 3. Efficacy and safety of dietary supplements containing CLA for the treatment of obesity evidence from animal and human studies (2003). Journal of Lipid Research. November 8, 2016.