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FORZA T5 Super Strength

FORZA T5 Super Strength is claimed to be the UK’s most popular diet pill. However, there are concerns regarding the safety of one of the product’s main ingredients: bitter orange.

Below we have reviewed FORZA T5 Super Strength against our review criteria to help customers make an informed decision.

Forza T5 Super Strength review

FORZA T5 Super Strength Pros
  • Made by an established company
  • Focuses on more than one area of weight loss
FORZA T5 Super Strength Cons
  • Lack of clinical studies
  • Contains bitter orange which has been associated with serious side effects

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FORZA T5 Super Strength Review

FORZA T5 Super Strength is one of the many T5 slimming pills on the diet pill market that are advertised as fat burners, metabolism boosters and appetite suppressants.

Claimed weight loss benefits

The manufacturers of T5 Super strength claim that this T5 can help to burn fat, increase metabolism, suppress your appetite, increase energy, and improve concentration levels whilst supporting muscle tone and definition.

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How FORZA T5 Super Strength Works


T5 slimming pills were once created in the image of the ECA Stack drugs, which contained ephedrine, caffeine and aspirin. This mixture of ingredients has since been deemed dangerous as it may cause severe side effects. The ingredients present in FORZA T5 Super Strength represent an alternative mixture that is often used in more modern T5 Fat Burners.

T5 diet pills are considered to be thermogenic fat burners. Thermogensis occurs when the internal body temperature is raised; a process that is believed to help to boost the metabolism and increase the speed of fat burning. With the rise in temperature, the body must cool down, and it’s this process that enables calories to be burned.

FORZA T5 Super Strength also contains ingredients that supposedly target appetite suppression and may have the potential to increase energy and concentration levels. The tablets are designed to be taken alongside a healthy diet and regular exercise to increase weight loss.

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FORZA T5 Super Strength Key Ingredients

bitter orange peel in t5 fat burner

It has been suggested that caffeine and bitter orange when combined has a positive effect on weight loss; however, some do not agree and feel that the combination of stimulants can be dangerous. Even so, the manufacturers state that these ingredients in conjunction with Active-Rx Green tea, which is FORZA’s proprietary blend of fat burning green tea extracts, plus the other ingredients work together to help you achieve your fat burning goals.


Trimethylxanthine is more commonly known as pure caffeine, which is a chemical that can be found in foods such as coffee and tea. It’s a regular addition to many diet pills due to its supposed effects on energy, metabolism, appetite suppression, and increase in alertness. Caffeine works by stimulating the heart, muscles, central nervous systems and the centres that control blood pressure.

Bitter Orange

Bitter orange is also referred to as Citrus Aurantium. Similarities have been reported between bitter orange and the banned substance ephedrine; it contains a chemical compound called synephrine which has been added to replace ephedrine. It is thought to be useful for boosting metabolism and suppressing appetite, however due to its stimulant like effects there are concerns that it could be as harmful as ephedrine, especially when combined with caffeine.

Active-Rx® Green Tea Extract

Active-Rx® is exclusive to FORZA T5 products; it is a advertised as a blend of fat burning green tea extracts. Green tea is believed to have a number of health benefits; in regards to weight loss, green tea is said to be effective for reducing fat, stimulating metabolism and improve exercise endurance. Its supposed fat busting ability is believed to be down to the polyphenols in green tea, which activate a certain enzyme in the body that could dissolve excess triglycerides. This may help to reduce fat content in the body. The polyphenols also supposedly stimulate the muscle cells and the liver to use more fatty acids leaving the carbohydrates free for energy.


Known as Vitamin B3, niacin is one of the eight B vitamins. It is important that the body has enough of this vitamin for general health. High amounts of niacin may improve cholesterol levels and lower cardiovascular risks. It can be found in many foods such as yeast, fish, meat and milk. Niacin is necessary for the proper function of fats and sugars in the body, and is also said to improve levels of triglycerides in the blood, however more scientific tests are needed to prove this theory.


L-tyrosine is a nonessential amino acid made from phenylalanine, which is an essential amino acid. The difference between nonessential and essential is that the body makes nonessential acids while essential acids need to come from an outside source. L-tyrosine may help suppress appetite and works to promote healthy thyroid function. It is also thought to relieve stress, which may be a contributor to weight gain.

Guarana Seed

The Guarana seed comes from a plant in the Amazon rainforest. The seeds are used for weight loss due to their high caffeine content, which is thought to increase memory, alertness, and mood, as well as suppress appetite and boost the metbaolism. Guarana seed also contains theophylline and theobromine, which come from the same chemical family as caffeine. Both theobromine and caffeine are thought to cause a thermogenic effect, and fat may be burned due to the increased heat output.

Chromium Picolinate

Chromium is a metal that is known as an essential trace element, this is because only small amounts are needed for general health. Chromium without the picolinate is a natural mineral that you can find in foods such as meat, fats and vegetable oil. The addition of acidic picolinate (in pill form) is thought to increase the body’s ability to absorb the mineral.

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Clinical Studies

Clinical Researcher 538

When a new medicine or treatment is discovered, a clinical study or trial is often undertaken to determine whether or not it is likely to be effective. This is vital for prescription medications, however it’s not always necessary for dietary supplements.

After intensive research into the treatment, animal testing can follow – this helps to check how the treatment affects a living body. Once animal testing has been completed then there is a need for human testing. Human testing is essential to fully understand how the treatment or medicine works on people because what works on animals may not have the same effect on humans.

To be able to make claims on how a product will affect you, it must have evidence to back this up. However, despite FORZA T5 Super Strength’s impressive claims, there doesn’t seem to have been any clinical studies performed on this product. Instead, one must rely on the tests that have been carried out on the ingredients contained in the T5 slimming pill.

Clinical Studies on FORZA T5 Super Strength Ingredients


Caffeine is an ingredient that is often added to diet pills. This is due to the supposed affects on metabolism, appetite suppression, energy boosting and many more things. There is a study titled ‘Caffeine ingestion, affect and perceived exertion during prolonged cycling’, which looked into the effects caffeine has on those during a workout. To test this, 12 endurance-trained men who weren’t allowed to eat over night were given caffeine 1 hour before doing 90 minutes of cycling. The results suggested that those who took caffeine had a more positive experience while exercising.

Another study supports the theory that when taken with other supplements, caffeine can help you to lose weight. This study looked at how a combination of Bitter Orange, caffeine and St. John’s Wort effects body composition, metabolism, plasma lipid levels and mood in healthy overweight adults. The results showed that this combination was not only safe, but also effective for fat loss when combined with diet and exercise.

Bitter Orange

Also known as Citrus Aurantium, this replacement for ephedrine has been tested many times to prove its effect on weight loss; however, few tests have been performed using human subjects. Due to it replacing ephedrine and ephedra products there have been concerns that it can also be as dangerous. One study titled ‘Hemodynamic effects of ephedra-free weight-loss supplements in humans’ looked into this potential risk. Results found that there was a significant cardiovascular stimulant effect similar to ephedra, but the researchers believe that this might be down to the caffeine and other stimulants rather than the bitter orange.

Active-Rx Green Tea Extract

It has been found that taking a specific green tea extract (EGCG) is helpful for overweight people to lose weight, but it doesn’t help you to keep off the weight. There has been a study titled ‘Effects of green tea on weight maintenance after body-weight loss’, that looked into this closer. Results showed that green tea had no real effect on the subjects’ weight maintenance after they lost a certain amount of weight.


With regards to weight loss, there needs to be more tests carried out on niacin to show any connection. One study titled ‘Chronic niacin overload may be involved in the increased prevalence of obesity in US children’ shows that too much niacin can in fact cause a rise in appetite which isn’t helpful for those dieting and trying to lose weight. This study however has only been done on children, and it would need to be further studied to prove this theory.


While L-tyrosine doesn’t have enough evidence to prove that it can help reduce stress, it is believed that it can help boost energy. A study titled ‘The effects of tyrosine on cognitive performance during extended wakefulness’ indicates that the ingredient does indeed have effects on energy. However, with so little L-tyrosine in this brand of T5 slimming pill it may not have much of an effect.

Guarana Seed

There is some evidence that supports the theory that guarana seed can help those trying to lose weight however, more evidence is needed to fully prove this. There are also few human tests, which look into the safety of guarana seed on humans. One clinical trial titled ‘Guarana (paullinia cupana) toxic behavioural effects in laboratory animals and antioxidants in vitro’ looked into the behavioural effects of guarana on rats and mice. There was no difference in motor activity, tremors or salivation between the group of rats that took 2000mg of guarana seed and the placebo group.

Chromium Picolinate

One study looked into the affect chromium picolinate had on body composition, and resting metabolic rate in obese women. Forty-four 25 to 51 year old obese women received 400mcg of chromium picolinate a day or a placebo. There were no significant results on body composition and resting metabolic rate. It was found that any results were down to the exercise more so than the supplement.

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FORZA T5 Super Strength Side Effects


The official website doesn’t mention any side effects apart from the risk of caffeine, which can cause nervousness, irritability, sleeplessness and occasional rapid heartbeat. There are still many side effects that some may experience by taking this product, especially those with a medical condition. Not everyone reacts the same to different products. Therefore if you have a medical condition, it’s best if you check with your doctor before trying out this product, especially as it contains stimulants that may be harmful to those who suffer heart conditions.


Due to caffeine being the most prominent ingredient, at 180mg, people may experience side effects related to this. Caffeine is mostly safe for adults but a large consumption can cause insomnia, anxiety, headaches, agitation, chest pain and rapid heart beat. Also, conditions such as diabetes and bipolar can become worse with caffeine consumption. If you take this product, you should reduce your dietary caffeine intake.

Bitter Orange

The main concern with Bitter orange is relates to the chemical component: synephrine. This is believed to be similar to ephedrine. When taken with other stimulants such as caffeine (this product has three caffeine-containing ingredients), there is an increased risk of high blood pressure, heart attack and even a stroke. Bitter orange can also make many medical conditions, such as Glaucoma worse.

Active-Rx Green Tea

Green tea is safe for most adults, but some can experience an upset stomach and constipation. Excessive drinking of green tea (more than 5 cups) can be unsafe. The side effects can range from headaches to convulsions; green tea extracts have also been reported to cause liver problems.


Niacin is generally safe for most adults; however, some can experience flushing which is a common side effect. It might also cause burning tingling, itching and redness of the face, arms and chests. You might also experience headaches, stomach upset, intestinal gas and dizziness. Worse effects are only experienced if more than 3g (3000mg) are taken per day. T5 Super Strength only contains 60mg; however, there is still a concern especially as niacin can also be found in food.


With this product only containing 25mg of L-tyrosine, any risk of side effects from this ingredient is low. However, some people have experienced nausea, headaches, fatigue, heartburn and joint pain with the ingredient.

Guarana Seed

Guarana seed is likely safe for most people when taken for short-term. But it can become unsafe and possibly lethal at higher doses. A fatal dose of caffeine is between 10 and 14 grams (10,000mg to 14,000mg), but it can be dangerous between 150-200mg especially for those sensitive to caffeine. A typical dose of guarana seed can cause many similar side effects to caffeine, but with T5 Super Strength only containing 12mg of this the risk is reduced.

Chromium picolinate

Chromium is likely safe for most adults when used appropriately for 6 months or less. Some people have experienced side effects such as skin irritation, headaches, dizziness, nausea, mood changes and impaired thinking. It can also make certain medical conditions such as liver disease worse.

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How to Use

woman wondering how diet pill works 538

The official product website recommends that you take two capsules of FORZA T5 Super Strength after breakfast in the morning, then another one capsule just before lunch in the afternoon. It is recommended that those who are sensitive to caffeine only take one capsule per day, and it might be best to begin by only taking one a day in order to gauge your tolerance to the product.

It is added that each serving should be consumed with a full glass of water and that the product is not suitable for vegetarians. Nobody should exceed the recommended dose, and anybody who is pregnant, breastfeeding, under the age of 18, has a cardiovascular condition, or is taking prescription medications should avoid the product entirely. If you have difficulty sleeping, then ensure that you do not take this product after 3pm.

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Who Makes It

FORZA is the company behind this brand of T5 slimming pill. They are a weight loss supplement manufacturer and supplier, based in Kent in the United Kingdom. On the Forza website they claim that soon after launch, in 2007, they became the fastest growing company in the industry, but they don’t provide any proof to back up this claim. This company also claims to be the first in the UK to develop a legal version of the T5 slimming pill.

They have since branched out into different markets, but supposedly still regularly work on their T5 brand aiming to be the best on the scene. As well as T5 slimming pills, FORZA have also created their own supplements such as Raspberry ketones. Products to help a person’s general well-being, such as Waterflow, a strong diuretic, and Aphrodite, which is targets nourishment and protection for nails, hair and skin, are also available on the official website.

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Where to Buy FORZA T5 Super Strength


Even with its claimed success, there aren’t many places that you can buy FORZA T5 Super Strength.They are not available in supermarkets or any high street pharmacies in the UK. However, you can buy them from the official website or from You need to be careful when considering buying from eBay or even Amazon due to the products not being directly sold by FORZA.

FORZA Supplement is the retail division of FORZA industries, where you can get all of the FORZA brand products including the T5 brand. At the time of writing, you can buy 60 capsules (one-month worth) for £34.

The UK-based company ‘’ stocks the full range of FORZA T5s, which includes the T5 Super Strength. Here, you can buy a trial pack (30 capsules) for £17 (was £19) and you can buy 60 capsules for £33.50 (was £34). There are also multi-buy offers available if you wish to buy in bulk.

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Does FORZA T5 Super Strength Meet our Approved Criteria

Money-back-guarantee: FORZA offer a returns policy but not a money-back-guarantee.

One-off payment: Yes – £34.00 for a bottle of 60 capsules.

Manufacturing Standard: Made in a GMP-certified facility by ‘Supplement Factory UK’.

Accompanying Diet Plan: FORZA do not offer a complete diet plan, but advice and recipes are available on the website.

Ingredients and quantities disclosed: The ingredients and their quantities are provided.

Company contact details readily available: A postal address and phone number are available.

FORZA T5 Super Strength does not meet our ‘Approved’ criteria as FORZA do not offer a money-back-guarantee or full diet plan.

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Overall Verdict

These T5 diet pills contain a number of stimulant ingredient that might provide consumers with more energy. However, with no diet advice or support, there is a chance that once you stop taking this product you will see an increase in weight, especially if you haven’t adopted a healthy diet. There is a lack of any scientific research on this T5 Fat Burner, and so it cannot be stated for certain whether or not they work or are safe. It’s not just the caffeine quantity that’s a concern; it’s also the risk of bitter orange which has been associated with very severe side effects.

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