The idea that onion increases body heat is a common belief, but it's not scientifically supported.
While onions have a pungent flavor and can cause a temporary burning sensation in the mouth, this is not the same as increasing body temperature.
The body's temperature is regulated by the hypothalamus, a part of the brain. It maintains a stable core temperature of around 98.6°F (37°C).
Onions contain various nutrients and compounds, but none of them directly affect the body's core temperature.
The sensation of warmth associated with onions is likely due to the release of capsaicin-like compounds, which stimulate the same receptors in the mouth that are activated by spicy foods.
However, these compounds do not influence the body's overall temperature.
In conclusion, onions do not increase body heat.
