Caffeine Supplements Benefits and Side Effects

Published Categorized as Weight Loss Pills

Would you like to know the caffeine benefits for weight loss, the best caffeine supplements and the caffeine side effects?

Caffeine is one of the most used ingredients in weight-loss supplements, it is also found in many of the foods we consume every day.

Quick note: Do you want to know the best supplements with caffeine that help you burn fat and lose weight? Know them here

If you want to know the benefits of caffeine, how it works, weight loss supplements that contain caffeine, and much more, then continue reading.

Check these articles that may interest you:

What is caffeine?

What is caffeine

Caffeine is not only found in coffee but it is found in many plants such as tea leaves, cocoa, kola nuts, among others.

Caffeine is a bitter tasting substance that stimulates the brain and central nervous system, it has been found to help calm hunger, keep you alert, give energy, as well as increase thermogenesis.

It is said that more than 80% of people around the world consume caffeine, while in the United States of America that percentage reaches 90%.

Summary: Caffeine can be found in many plants besides the coffee plant, it has a bitter taste, keeps you alert, gives you energy and increases thermogenesis, among other benefits.

How does caffeine work?

It works in your body in different ways, typically the following:

Diuretic. It helps you eliminate excess salt and fluid in your body through urine.

Nervous system stimulator. This will make you feel more energetic as well as keep you more alert.

How does caffeine work Nervous system stimulator

Increase blood pressure. It is not very convenient for those who suffer from high blood pressure.

Caffeine is absorbed quickly and it takes 20 minutes to reach the bloodstream and 1 hour for its full effect, so it will give you energy immediately and its effects can continue to be felt for 4 or 6 hours.

Summary: Caffeine works in your body as a diuretic, stimulating your nervous system, and is absorbed in less than 20 minutes by the bloodstream, the effects last 4 to 6 hours.

When being transported by the bloodstream, caffeine reaches the liver, where it will be broken down into compounds affecting different organs, mainly the brain.

The way it energizes you and prevents you from feeling fatigue is by blocking the effects of adenosine which is a neurotransmitter that relaxes the brain and makes you feel tired. This also keeps you from getting sleepy.

It also increases adrenaline, keeps you more focused and keeps you on your toes, which is why it is known as a psychoactive drug.

Where do you get caffeine from?

Caffeine is obtained naturally from coffee beans, cocoa, mate leaves, guarana (kola nut) and also from tea.

Below I show you the amounts of caffeine in foods and drinks that are typically consumed.

  • Cup of coffee (200 ml): 120 mg
  • Espresso: 240-700 mg
  • Energy drink (250 ml): 80 mg
  • Cup of Tea (220 ml): 60 mg
  • Milk chocolate drink: 6 mg
  • Chocolate bar (50 g): 9 mg
  • Yerba mate: 110 mg: 90 mg

Caffeine can be found in other foods and drinks, as well as supplements and medications.

Caffeine Benefits

Caffeine Benefits Weightloss Best in athletic performance


The vast majority of supplements for weight loss contain caffeine because it helps in a great way to lose weight, since it accelerates metabolism, controls appetite, increases thermogenesis.

Using caffeine with a balanced diet and physical activity accelerates weight loss.

Safe stimulant

Caffeine stimulates the entire nervous system, for which the brain and spine receive these stimuli, which leads you to be in a state of alert and its impact is immediate.

Helps in migraine

It is known that the use of caffeine helps reduce headaches and reduce tension, if caffeine is used in conjunction with pain relievers or aspirin it works effectively to relieve migraine.

Summary: Caffeine has many benefits, such as: Helps to lose weight, is stimulating, reduces migraine, improves mental alertness, memory, athletic performance, in addition to protecting the liver.

Mental alert

When you’re looking to stay focused and alert, coffee is on your side. This can help you perform better either in the workplace or even to learn new things.

Improve memory

Caffeine not only allows you more focus when studying or learning, but it also improves memory, so you can better retain everything you learn.

Best in athletic performance

Caffeine is also used in supplements for physical performance, especially before training, as it improves your strength and endurance.

If at any time you don’t have the motivation to go to the gym, try drinking a black coffee about 15 minutes before going and you will see the difference.

Liver protection

Caffeine helps reduce liver damage, improving response to treatments, as well as slowing the progression of damage, in order to improve quality of life.

Meet the best fat burner for women that contains caffeine

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How does caffeine work for weight loss?

Caffeine has many benefits for weight loss, some direct and some indirect, as long as some guidelines are followed.

For example, it is excellent to control your appetite, so if you want to cut a snack, just have a coffee to make your hunger go away, so you can avoid consuming extra calories.

It is important that you know that for this to be functional, the coffee must be consumed black and not add creams, sugars, or sweeteners. Otherwise you would be adding extra calories and losing all purpose.

Summary: Caffeine helps you lose weight in different ways, these are: controlling your appetite, it speeds up your metabolism so that you burn more fat, it gives you energy so you can perform your physical workouts.

It is also widely used in protocols such as intermittent fasting, since you can have black coffee during fasting hours and it will calm your hunger, as well as give you energy. It should be noted that if you add sugar or cream, you would automatically lose your fast, since this would add calories to the coffee.

By giving you additional energy caffeine, this helps you have extra motivation when going to the gym, in addition to giving you extra strength and endurance, so you will get more out of your training, doing it with greater intensity.

Caffeine helps accelerate metabolism so you can burn more calories even when you are at rest, so you will prevent them from accumulating as fat in your body.

There are also supplements that contain caffeine which allow you to take them anywhere without having to prepare coffee or tea, in this way you can take it according to the recommendations and doses so that you can lose weight.

How to use caffeine? | Dose

The body tends to get used to caffeine so it does not have the same effect in people who have never used it compared to people who use it regularly.

How does caffeine work for weight loss

For this reason it is recommended that people who have never used it, do so with low doses to avoid nervousness.

According to studies, it is recommended to consume 2 to 7 milligrams of caffeine for every kilogram of weight. As I mentioned before, if it is the first time you take it, start with low doses.

Summary: People who are not used to taking caffeine should start with 2 milligrams per kilo, while people who are used to it can take up to 7 milligrams per kilo.

If you already have time using caffeine, increase the dose as required, If your dose is already very high, then it is recommended that you stop consuming it for a while, this will help that when you consume it again, the caffeine will have the same effects with smaller doses.

Do not consume caffeine at night because it can give you insomnia.

Caffeine Side effects

Caffeine is very safe to use, however you must have certain considerations.People who are sensitive to caffeine may experience anxiety, impaired heart rate.

If taken in excess, it can give headaches, increased heart pressure, even migraines.

Some supplements and medications are contraindicated to caffeine, in some cases because they already contain caffeine and if you drink tea or coffee you could greatly increase the dose.

Summary: If you suffer from any disease or have any risk situation, consult your doctor before starting to take caffeine, especially if you have medical treatment.

Some people blame coffee for heartburn or ulcers, the reality is that this happens when you combine coffee with refined flours and sugars, this is very common since coffee is normally enjoyed with these foods.

If this is your case, you could try drinking black coffee and avoid consuming sugars and refined flours, to see what impact they have on you.

If you have any illness or symptoms of illness, consult your doctor before consuming any food or drink that contains caffeine.

Caffeine supplements for weight loss

In the market there are many weight loss supplements that contain caffeine, for that reason and to make it very simple for you, here I have the best ones and with which you will have a better result and in an accelerated way.

# 1 Trimtone the best fat burner with caffeine

Caffeine supplements for weight loss

It is known as the best fat burner for women, it has all the advantages that caffeine gives you in addition to other natural ingredients that will make you lose weight and achieve your dream figure, best of all you only have to take one pill a day to keep you burning fat for 24 hours.

Know everything about Trimtone



PhenQ has the power of 5 supplements in one pill, contains caffeine and other natural ingredients. It helps you lose weight from various angles, speeds up metabolism, controls hunger, gives lots of energy, prevents the creation of new fat, and improves your mood. Meet PhenQ diet pill


Zotrim 1 Pack

This supplement has the power of caffeine in addition to other premium ingredients for weight loss. It is the best supplement on the market to control appetite, so it will help you cut the calories you consume to prevent more fat from being formed and eliminate what you currently have accumulated.Control Appetite with Zotrim

Hiprolean X-S


It is a powerful fat burner designed for men and women, it helps speed up the metabolism so you can melt excess fat in your body, it contains caffeine and other ingredients that are compatible with vegan and vegetarian diets and is gluten-free.Learn more about the Hiprolean X-S fat burner


Phen24 1 Box

It is a double treatment, it has a formula at night and another for the day, it helps you burn fat 24 hours a day. In its daytime formula it is where it contains caffeine in addition to other ingredients that help you optimize your diurnal mechanisms to stay active all day and burn fat so you can lose weight.Learn more about the 24-hour Phen24 treatment

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By Linda Martínez

My name is Linda Martinez. I have been working as a writer since 2014, years later I also started writing for Less Weight In Weeks. I have always been very fond of topics related to personal care and nutrition. I am not a doctor or nutritionist, but I like to offer quality information. That is why over the years I have documented myself on these issues, in addition to many of them I have put them into practice to be able to comment on my experience. My articles do not replace the recommendations of health professionals, so always consult your doctor before making any changes in your eating or health habits. The information I share should not be taken as health or nutrition recommendations.

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