Celsius causes brain fog

Question

Celsius and other caffeinated drinks can lead to brain fog and fatigue.

Comments

I think that this claim definitely has some truth to it, however since the article does not directly call out Celsius, then that leads me to believe that the person to created this claim may have something against the Celsius drink, or maybe the company, considering that the brain fog comes from the caffiene in the drink, then it wouldn't make sense that other drinks containing caffiene would not also cause brain fog.

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I don't agree with this claim at all. Obviously, if you consume too much of something it becomes bad for you. However, Celsius and other energy drinks are made to give you energy and essentially focus on whatever activities you're trying to do.  Celsius is also made with different vitamins and amino acids that help enhance mental clarity and physical performance. Many consumers report increased focus and sustained energy without crashes associated with traditional sugary energy drinks, especially considering that Celsius is made with 0 sugar. If Celsius did lead to brain fog, its products wouldn't be endorsed by so many athletes at both college and professional levels. These are people who's jobs require focus and lots of energy. Rather than blaming energy drinks, I think factors like an individuals diet, hydration levels, and caffeine tolerance .

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This claim “Celsius and other caffeinated drinks can lead to brain fog and fatigue.” is found to be true followed by many harmful effects. Firstly when reading the provided article, the writer never actually states the issues being caused are by the caffeine within the Celsius brand themselves. In this case, the author could have gone to extreme assumptions for this claim to persuade the audeince, despite some truth in the statement. It seems that ther eis no direct correlation with Celsius itself rather than caffeine as a whole casuing brain fog within customers. An external article addresses brain fog in general stearing away from even the effects from caffeine. Brain fog is often linked to chronic fatigue syndrome (CFS), which affects about 1 million Americans. (Roche, 2025). Other validated sources address some negative aspects of caffeine intake; crashes, dehydration, and blood sugar irregualries.  Ultimatley, it is determined that although this claim is true, this specific article coverfing the effects of celsius are untrue and are made assumptions.
Sources: https://www.livestrong.com/article/440331-caffeine-brain-fog/#google_vignette

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This claim that Celcius and other caffeine drinks cause brain fog is shown to be true in this article by providing multiple other sources. The article talks about various health risks most concluding in overuse of caffeinated drinks can cause brain fog. The article also provides multiple other reliable sources to back health concerns relating caffeine. Although the article is convincing, the claim could be biased from a personal experience.

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I agree with the claim to some extent, but I believe the credibility of the article would be significantly enhanced if there were more resources and detailed information specifically about the Celsius drink itself. Providing direct references, studies, or expert opinions related to the product would help strengthen the argument and make it more trustworthy. Additionally, if the claim were framed differently maybe focusing on other aspects or backing up the statement with more concrete evidence the article would appear more credible overall.

Answer 1

This article has some evidence that can support the claim that an excessive amount of Celsius can lead to brain fog. However, this can happen with all caffeinated substances. Celsius does contain a large amount of caffeine though, compared to coffee and other energy drinks. I don't think this would be considered as "fake news," but it might be slightly misleading to those who only read the title or skim the page.

Answer 2

Claim: Celsius and other caffeinated drinks can lead to brain fog and fatigue.

Fact Check: The claim isn't completely false, but exaggerated and misleading. First off the article even states that “brain fog” is hard to define, because it's not a clinically diagnosed disorder; but rather a symptom of chronic fatigue syndrome or CFS. Drinking caffeinated drinks is not the cause of brain fog and fatigue, but can be a factor in lack of sleep. One of the links in the article talks about how caffeine six hours before bedtime or less affects sleep, so people who feel fatigued may be using caffeine to fight the effects of it during the day, but are hurting their sleep at night which makes it a tough cycle to break out of.

https://www.livestrong.com/article/440331-caffeine-brain-fog/

https://pmc.ncbi.nlm.nih.gov/articles/PMC3805807/

 

Answer 3

The claim that "Caffeine causes brain fog" is misleading.

The article states that "Caffeine could be the cause behind your constant state of exhaustion" but doesn't really use any viable information to back this up. It uses this study: https://pmc.ncbi.nlm.nih.gov/articles/PMC3805807/ which just correlates caffeine with lack of sleep. There is no concrete evidence that caffeine causes brain fog. The references that they use as evidence all point to the fact that caffeine causes bad sleep and dehydration which in turn gives you brain fog.

Answer 4

While it has been proven that caffeine can lead to brain fog and fatigue, this article does not directly specify that Celcius in particular has been proven to do so. This article refers to a Vail Health article which explains that brain fog is actually not common, instead the result of many confounding factors. This article does not mention Celcius by name, and doesn't even fully draw the correlation between caffeine and brain fog, instead connecting increased caffeine consumption to a loss of sleep.

https://www.vailhealth.org/news/could-it-be-brain-fog

Answer 5

The article claims that caffeine is linked to brain fog. Though this claim is found to be true, the title claims it's specifically celsius causing brain fog and the article itself doesn't directly mention celsius drinks. In the linked PubMed article, studies if caffeine can cause sleep disturbances. It's found that caffeine consumption 6 hours before sleep can, in fact, cause an inability to sleep well. The original article claims that this then causes a dependency on caffeine to help you get through the next day after having bad sleep due to caffeine ingestion the previous day. The article then claims that this lack of sleep can cause brain fog and links a Vial Health article on what brain fog is and its causes. The Vial Health article backs up this claim as it is found that a common cause for brain fog is lack of sleep. So, while the title can be slightly misleading as it's clickbait, research does show a connection between brain fog and caffeinated drinks such as celsius.

https://pmc.ncbi.nlm.nih.gov/articles/PMC3805807/

https://www.vailhealth.org/news/could-it-be-brain-fog

Answer 6

The article's claim that coffee and other caffeinated drinks cause brain fog is misleading. While the sleep deprivation that may be caused by caffeine can lead to brain fog, it's not the coffee itself that is causing the issues. One of the websites linked in the article is a review of different studies of brain fog, which states "CFS/ME is a complex condition with many symptoms, some of which may be related to the food and beverages consumed. This review indentified only one study that evaluated an elimination diet in response to food sensitives. Therefore, future research may consider eliminating potential trigger foods in CFS/ME (e.g. alcohol, caffeine, fat, milk, dairy, gluten), followed by challenges to identify potential problem foods."

This one study mentioned makes no such claim that coffee directly causes brain fog.

https://pmc.ncbi.nlm.nih.gov/articles/PMC5434800/#jhn12435-sec-0020

https://pubmed.ncbi.nlm.nih.gov/18339054/

Answer 7

This cannot be entirely true because the word "brain fog" is not a diagnosed condition instead it is a word referred to when the brain is slipping up more than usual and forgetting little things (Could It Be Brain Fog?). Every source in the article is legit and it brings up good points about caffeine affecting sleep. A lack of sleep can cause mental health problems and anxiety (How Sleep Deprivation Impacts Mental Health | Columbia University Department of Psychiatry). The article brings up that caffeine can cause brain related issues such as anxiety, however claiming that one energy drink causes a condition that is not even recognized is misleading. 

Answer 8

This claim is not fully supported and correct because the article they used to support their claim does not say anything about how the drink Celsius has any impact. The article only mentions how caffeine and an excessive consumption of caffeine can cause brain fog. While Celsius contain caffeine it is not the direct harm or cause to brain fog.

Answer 9

Claim: Celcius causes brain Fog

In my own personal life I have found that celsius can lead to "brain fog". However the article is misleading because it describe's brain fog as not an actual condition and provides no scientific evidence of real life cases where this "brain fog" occurs. When drinking this brand to stay active for school or simply to get a boost of energy before the gym, frequently I do notice the cognitive symptoms an hour or two after drinking the beverage. The author does describe the cognitive effects of the drink as a scientific article but should add more evidence to the claim.

Answer 10

This article claims that drinking the popular energy drink called Celsius will cause brain fog, exhaustion, mental lapses, and fatigue. 

The article is not focused on the brand Celsius but on caffeine and coffee in general even though the title addresses Celsius specifically. Due to its current popularity, the chance of people clicking on the article is higher due to Celsius being in the title.

There is a lot of focus on the effects of caffeine and how it stays in the body referenced by the Cleveland Clinic article which very briefly focuses on the symptoms with a completely different topic in the majority of the article. Most other references including the Journal of Clinical Sleep Medicine were more credible but the article did not focus on the whole thing, only small parts sometimes completely ignoring other data.

This article was not very focused and the title was misleading. It didn't even clearly answer the claim due to a lack of details and evidence.