Fat burners and their side effects

As the name suggests that fat burners mean burning of fat. These are nutritional supplements that can increase your metabolism, reduce fat absorption, and help your body burn more fat for fuel. There are varieties of fat burners available in the market. Some of them are very harsh for your health, but some are safe and effective, if used under proper guidance. We all want to lose weight in one day. Yes you heard it right in one day.


I am not saying wrong every day so many people contact me online, and they always want to transform their bodies in a very short period of time. They have gained their weight in 5 years constantly but they want to lose it in 5 days, and they are always asking for short cut supplements like fat burners. A good fat burner must include caffeine, green tea-extract, yohimbine, Chromium Picolinate, Garcinia Cambogia etc.

Types of Fat Burners:

1. Fat Blockers-

These kinds of Fat Burners Prevent the absorption and digestion of fats that we consume means these Fat blockers supplements can block saturated fats from being absorbed in the digestive system. But most of the time they can block important nutrients as well.

They work as enzymatic inhibition means as we know Enzymes are special proteins that help metabolize nutrients. Researchers have discovered they may help begin the weight loss process and work well for short-term periods.


There’s only one FDA approved fat blocker called “Orlistat” (Alli or Xenical). Alli (orlistat) belongs to a class of drugs called lipase inhibitors. It is Over-the-counter the medication. It blocks the intestines from absorbing about 25% of the fat that we eat.

Opinion the Truth-

Not so many people use these fat blockers. I strongly advise don’t use these kind supplements without consult with your physician & I have not seen many results of these fat blockers.

Side effects-

They can block important nutrients as well. The common side effects are increased bowel movements, gassiness, oily rectal leakage, abdominal pain, and headaches, etc.

2. Carbs Blockers-

Carbs blockers Supplements work in the same way as fat blockers. Carb blockers, also known as starch blockers, can help block the enzymes needed to digest certain carbs.

These supplements work by inhibiting the enzymes that normally digest carbohydrates. This allows the carbs to pass through your system without contributing to your total caloric intake.


Slim X Genie KETO, White Kidney Bean Extract, Salacia reticulate, White kidney beans Extract has been clinically proven to intercept starches and block carbs from being absorbed and turned into fat. Some starch blockers need a prescription.

They are called acarbose (Precose), and miglitol (Glyset). These are used as treatments for blood sugar control in people with type 2 diabetes.

Opinion the Truth-

There is not much true data available about these carbs blockers’ supplements and their results. I never advise any of my clients to go for these carbs blockers. As when I set their diet & Workout Right and they follow it properly, they lose weight easily without harming themselves.

Side effects-

Always remember more effective carb blockers are, the more harsh side-effects they have. Remember these kind supplements can block the important nutrient as well.

White kidney bean extracts have been shown to be safe in short-term studies – the most common side effects being mild gastrointestinal symptoms such as gas and bloating, which tend to occur early on. Phase 2 is FDA GRAS (Generally Recognized As Safe).

3. Stimulant Free Fat Burners-

There are so many of us go to the gym at night or evening or sensitive to caffeine in other words. So stimulant-free fat burner is a good choice for them as can sleep after evening workout when using these stimulant-free fat burners. Stimulant-free supplements do not affect your adrenaline.

Fucoxanthin is the main ingredient you can find in these stimulant fat burners. Studies suggest that the compound can be stored in fat cells and induce fat loss while inhibiting the differentiation and proliferation of fat cells, essentially allowing for reduced fat mass. It also may reduce triglyceride and cholesterol levels.


You can google Stimulant free fat burner then you can have so many choices available but L-carnitine, Green Tea extract, CLA – Conjugated Linoleic Acid, Forskolin, etc.

There is so many stimulant-free fat burners you can find singe ingredient or combine but TL Fat Burner Stimulant-Free Version & Hydroxycut LeanX could be your best choice if you want to try.

Opinion the Truth-

I have seen good results with kind fat burners when combining with right diet and workout.

Side effects-

As a study shows there are not any data related side effects of these kind supplements unless you are allergic of one these ingredients. Still You must talk to your personal trainer before using any of these supplements.

4. Cortisol Blockers-

Cortisol is a naturally produced stress hormone. Cortisol inhibits insulin effectiveness which makes your blood sugar (glucose) levels rise. Cortisol blockers help decrease your cortisol level.

Cortisol helps our body to gain weight and also gain fat particularly around your midsection. So there is a variety of medicine and herbal supplements available in the market to help to reduce the cortisol level in the body.


Asian herb ashwagandha and fish oil, then combine them together, they really help to reduce the cortisol level. Medications to control excessive production of cortisol at the adrenal gland include ketoconazole, mitotane (Lysodren), and metyrapone (Metopirone). … Mifepristone does not decrease cortisol production, but it blocks the effect of cortisol on your tissues. (Source – Internet)

Opinion the Truth-

According my opinion they are good supplements and if you think stress is the main cause of your weight/fat gain, then you must try it. As I strongly advise you to get your omega 3 from your diet, never rely on supplements for long, and always use any herbal supplements with proper guidance. Must consult with your doctor before using any of the above medicine.

Side effects-

Summary Although ashwagandha is safe for most people, certain individuals shouldn’t use it unless authorized by their doctor. The standardized root extract is commonly taken in 450–500 mg capsules once or twice per day.

5. Thyroid Regulating Fat Blockers-

The thyroid gland is an endocrine gland in your neck. It makes two hormones that are secreted into the blood: thyroxine (T4) and triiodothyronine (T3. Some time our thyroid is not working properly some people can get Hyperthyroidism (overactive thyroid) and Hypothyroidism.

When we have hyperthyroidism we start losing weight and when we have hypothyroidism we start gaining weight. So if after good dieting and workouts, still, you are not losing weight must test the level of your thyroid.
So our thyroid gland plays a crucial rule to regulate our metabolic functions. There are so many medicines and herbal supplements available in the market to regulate your thyroid. But you must consult with your physician first before using any of it.


Absolute Nutrition Thyroid T3 is a widely used supplement. BioCor Nutrition Thyro-T2 Thyroid Support Fat Burner.

Opinion the Truth-

Don’t Use these supplements without consulting with your physician.

Side effects-

Anxiety, Severe headache, diarrhea, flushing and sweating, Chest pain Etc.

6. Appetite Suppressants-

Appetite suppressants supplement helps to control our hunger. As we all know our hunger is control by two chemicals called ghrelin and leptin. Appetite suppressants help to regulate the levels of ghrelin and leptin.

These two chemicals fall and rise based on the so many factors on a daily basis like our stress level, sleep level, and mood. These Appetite Suppressants keep you from overeating and decrease your appetite.


There are so many medicines and herbal supplements available in the market. But better try natural appetite suppressants Like Fenugreek seeds, Green tea extract, Glucomannan, Garcinia Cambogia, Cayenne, black pepper and Grapefruit essential oil, etc.

Opinion the Truth-

You can try these appetite suppressant natural supplements. Maybe they will not control your hunger but surely they can help to balance your stress level. Always use any kind of supplements under the supervision of your Experienced trusted personal trainer or physician.

Side effects-

These Appetite suppression supplements can cause you insomnia, dizziness, nausea, stomach pain, nervousness, constipation, and diarrhea Etc.

7. Thermogenic Fat Burners-

Thermogenic supplements contain natural and sometimes unnatural ingredients designed to boost our metabolism and increase fat burning. Our metabolism provides us energy all the time not only when we workout in the gym but also when we talk, walk, move our limbs and other so many invisible tasks, our bodies perform every day like circulate blood, digest food, eliminate toxins Etc.

These thermogenic fat burners help our body to increase natural metabolic response and because of this, our body starts burning more calories even when we don’t work out in the gym and as a result we start losing fat or weight. That’s whey most people report palpitation, increased heart rate in the entire day. when using these thermogenic fat burners.

A high level of caffeine is the main ingredient in these thermogenic fat burners. But remember Overstimulation is not beneficial to your health. The common ingredient you can find in thermogenic fat burners is Caffeine, Evodiamine, green tea extract, capsaicin, and other plants extracts.


Black Spider, MuscleTech Hydroxycut Hardcore Elite, MHP Thyro-Slim, Nutrex Research Lipo Six, ABSN Fat Burner Svelte Pro Etc.

Opinion the Truth-

If you are really looking for good results then this number 7 categories is far better than the other six. But always use it with proper guidance under your trusted well expert physician.

Side effects-

If you are using this supplement is good then you won’t be able to sleep after around 6-9 hours after taking it. So if you are working out in the gym in the evening then you must be a hard trainee so you can burn every thin inside you, otherwise, you won’t are able to sleep the whole night. Common side effects noticed when people used these fat burners are nausea, insomnia, irregular heartbeat, feeling anxiety, abdominal pain or uneasiness, headache, constipation, and loss of appetite, etc. Over-stimulation is not beneficial to your health.

8. Testosterone boosters-

Testosterone boosters are natural supplements that can increase your testosterone levels. As in males whey our age grows, our testosterone starts to decline by about 1 percent per year after age 30. Even some people also suffer from a low level of testosterone at a younger age due to unhealthy eating, or a medical condition called Hypogonadism. Hypogonadism in males happens when the testicles don’t produce enough testosterone.

A low level of testosterone means a high level of fat. There is a variety of supplements available for low testosterone condition in males. Some are natural and some are unnatural and you may need your doctor prescription for that. Remember some testosterone Works by preventing testosterone from being converted into estrogen.


There so so many herbs you can use as Testosterone booster like – Tribulus Terrestris, Ashwagandha, Horny Goat Weed, Ginseng, India herb Safed Musli Etc. There is also medicine available in oral and injectable form for low levels of testosterone treatment. But for this, you need proper advice from your doctor.

Opinion the Truth-

I have seen good results with these types of supplements but they are more good for shed an extra layer of body fat and increase muscle mass. But people still use for weight loss as well.

As always I strongly suggest you, always consult with experienced personal Coaches or your physician before using any of these natural or unnatural supplements. He can save your money by guiding your Properly.

Side effects-

Like nothing in the world is without Side Effects. But you can minimize these side effects when using these testosterone booster under the supervision of your physician. Natural herbs are safe for a short period of time with limited dose as the study suggested.

But if you are looking for Unnatural form then you must face these side effects. like – Breast swelling or tenderness, high red blood cell counts, which could increase the risk of clotting, Prostate growth, acne, Mild fluid retention, Oily Skin Etc.

This article for information purposes only. It is written by Experienced Personal trainer & Nutritionist Paramjit Singh is known as “PARAMBODYFITMIND”. I strongly advise you before using any of the above pills, You must consult with an expert physician and remember Without proper diet or Workout according to your fitness Goal, these pills won’t Work at all. The information I have provided you in this article collected from various internet sources and reviewed by me with practical knowledge.

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