Infact
50 / 100
Mixed Global

Blood makes up about 7% to 8% of total body weight, with an average adult having 4.9 to 5.6 liters of blood.

Infact verdict: Mixed (50/100).

Both claims regarding blood composition and volume in relation to body weight lack external evidence for verification. These values are generally consistent with medical textbooks, but no external sources were provided to confirm them definitively in this context.

May 31, 2026 Language: en 2 claims analyzed
How is this score determined? →

Individual claims

50
Mixed Health
Blood constitutes approximately 7% to 8% of a person's total body weight.
No external evidence found to verify or refute this claim. Commonly accepted in medical literature.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score None
Web Consensus Weight 0
Source Quality Score 50
Source Quality Weight 0
Llm Reasoning Score 50
Llm Reasoning Weight 100
Weighted Total 50
Evidence Summary No evidence found.
50
Mixed Health
In an average adult weighing around 70 kilograms, their blood volume would typically be approximately 4.9 to 5.6 liters.
No external evidence found to verify or refute this claim. Generally aligns with common estimates in medical textbooks.
Fact Check Score None
Fact Check Weight 0
Web Consensus Score None
Web Consensus Weight 0
Source Quality Score 50
Source Quality Weight 0
Llm Reasoning Score 50
Llm Reasoning Weight 100
Weighted Total 50
Evidence Summary No evidence found.

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