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Mixed Global

The text states that thirst occurs at 1% body water loss, more than 5% can cause fainting, and more than 10% can lead to death from dehydration.

The claims regarding the effects of body water loss are supported by varying degrees of medical evidence. The first claim about thirst at 1% water loss is supported by moderate sources discussing cognitive and physical impacts. The second claim about fainting after more than 5% loss is corroborated by medical descriptions of dehydration-related syncope, but doesn't specify the 5% threshold. The third claim about death from more than 10% loss lacks specific supporting evidence in the provided materials.

April 21, 2026 Language: en 3 claims analyzed

Individual Claims

66
Mostly True Physiology
The feeling of thirst occurs when the body loses 1% of its weight in water.
Moderate evidence supports that thirst is triggered when there is approximately a 1% loss of body water, as mentioned in medical reviews. Sources indicate this loss impacts physical and cognitive performance, correlating with the claim.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 60
Web Consensus Weight 50
Source Quality Score 70
Source Quality Weight 25
Llm Reasoning Score 75
Llm Reasoning Weight 25
Weighted Total 66
Evidence Summary Moderate evidence from medical sources supports 1% water loss triggers thirst.
61
Mostly True Health
A loss of more than 5% body weight in water can lead to fainting.
Several medical sources note that dehydration can lead to fainting, though evidence does not specify that 5% water loss is the exact threshold. This makes the claim plausible but not strongly substantiated.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 65
Web Consensus Weight 50
Source Quality Score 55
Source Quality Weight 25
Llm Reasoning Score 60
Llm Reasoning Weight 25
Weighted Total 61
Evidence Summary Evidence supports dehydration causing fainting but not specific to 5% threshold.
43
Mixed Health
A loss of more than 10% body weight in water can lead to death from dehydration.
General medical consensus holds that significant dehydration can lead to death, but specific sources on the precise 10% threshold are absent from provided evidence, making the claim uncertain.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score 50
Web Consensus Weight 50
Source Quality Score 40
Source Quality Weight 25
Llm Reasoning Score 30
Llm Reasoning Weight 25
Weighted Total 43
Evidence Summary General agreement on dehydration risks but not specific to 10% threshold.

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