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Can Coffee Help You Burn Fat?

Can Coffee Help You Burn Fat?

Coffee contains caffeine… which is the most commonly consumed psychoactive substance in the world. Caffeine has made its way to most commercial fat burning supplements, for good reason. It is one of the few substances that is known to help mobilize fats from the fat tissues and increase metabolism.

 

Coffee Contains Stimulants

Coffee isn’t just warm black water. Substances in the coffee beans do make it into the final drink. In fact, coffee contains several biologically active substances that can affect metabolism:

  • Caffeine – a central nervous system stimulant.
  • Theobromine and Theophylline – substances related to caffeine that can also have a stimulant effect.
  • Chlorogenic Acid – one of the biologically active compounds in coffee, may help slow absorption of carbohydrates (1).

The most important of these is caffeine, which is very potent and has been studied thoroughly. What caffeine does in the brain, is to block an inhibitory neurotransmitter called Adenosine (2, 3). By blocking Adenosine, caffeine increases the firing of neurons and the release of neurotransmitters like Dopamine and Norepinephrine.

 

Coffee Can Help to Mobilize Fat From The Fat Tissues

Caffeine stimulates the nervous system, which sends direct signals to the fat cells to tell them to break down fat (4, 5). Another thing that caffeine does is to increase our blood levels of the hormone Epinephrine, which is also known as Adrenaline (6, 7). Epinephrine travels through the blood, to the fat tissues and send signals to break down fats and release them into the blood. This is how caffeine helps to mobilize fat from the fat tissues, making it available for use as free fatty acids in the blood.

 

Coffee Can Increase The Metabolic Rate

How many calories we burn at rest is called the Resting Metabolic Rate (RMR). The higher our metabolic rate, the easier it is for us to lose weight and the more we can allow ourselves to eat without gaining. Studies show that caffeine can increase the metabolic rate by 3-11%, with larger doses having an even bigger effect (8, 9). Interestingly, most of the increase in metabolism is caused by an increase in the burning of fat (10).

Unfortunately, the effect is less pronounced in those who are obese. In one study, the increase in fat burning in lean people is as high as 29%, while in obese individuals the increase is about 10% (11). The effect also appears to diminish with age and is more pronounced in younger individuals (12).

Caffeine can improve athletic performance via several mechanisms, one of those being increased mobilization of fatty acids from the fat tissues. Studies show that caffeine can improve exercise performance by 11-12%, on average (1314).

 

Coffee and Weight Loss in The Long Term

There is one major caveat here, and that is the fact that people become tolerant to the effects of caffeine (1516). In the short term, caffeine can boost the metabolic rate and increase fat burning, but after a while people become tolerant to the effects and it stops working. But even if coffee doesn’t make you expend more calories in the long term, there is still a possibility that it blunts appetite and helps you eat less.

In one study, caffeine had an appetite reducing effect in men, but not in women – making them eat less at a meal following caffeine consumption. However, another study showed no effect for men (1718).

Whether coffee or caffeine can help you lose weight in the long term may depend on the individual. At this point, there is no evidence that it can help with weight loss in the long term.

 

Take Home Message

Even though caffeine can boost your metabolism in the short term, this effect is diminished in long-term coffee drinkers due to tolerance. If you’re primarily interested in coffee for the sake of fat loss, then it may be best to cycle it to prevent a buildup of tolerance. Perhaps cycles of 2 weeks on, 2 weeks off.

Of course, there are plenty of other great reasons to drink coffee, including the fact that coffee is the single largest source of antioxidants in the western diet, outranking both fruits and vegetables, combined.

 

Article by Kris Gunnars

 

Related

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Read more: Conditions, Diet & Nutrition, Drinks, Eating for Health, Food, Health, Obesity

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Kris Gunnars represents AuthorityNutrition.com – a site that helps people make informed decisions about their health based on the best scientific evidence available.

198 comments

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11:31AM PDT on Jun 28, 2014

Hmm seem interesting. Thanks! Anyway, just wanna share, research shows that a professionally customized exercise program for your body type burns 3x more fat than generic programs and is twice as enjoyable. Natural Fat Loss patronizes eating the proper food to have good metabolism based on your body type and shows best result.

3:33AM PDT on May 15, 2014

When I went through menopause a few years ago, I gave up coffee because it caused even more hot flashes.
I tried it again a few months ago, but it doesn't taste the same as it did before!!

3:46AM PDT on Apr 18, 2014

Thank you

1:15PM PDT on Mar 13, 2014

Interesting. Thanks.

8:21PM PDT on Mar 10, 2014

I really miss my caffiene. Gained weight as soon as I had to give it up.

1:07AM PDT on Mar 10, 2014

on days when i feel like eating like a vacuum cleaner, i often end up with a mug of coffee to kill my appetite!

11:23PM PDT on Mar 9, 2014

a day or 2 without coffee, I'll get a horrendous headache, too addicted, i guess

7:19AM PDT on Mar 9, 2014

great, so i can continue drinking my caffeinated soda since that is the primary fat burner

9:44AM PST on Mar 7, 2014

The problem with drinking coffee after a meal is that it prevents the absorbtion of iron. I love coffee but only drinkin during the morning, and green or other tea during the rest of the day.

12:52AM PST on Mar 6, 2014

all things in moderation

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Disclaimer: The views expressed above are solely those of the author and may not reflect those of
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