Why is 性 in the sentence 你不能吃凉性的水果? From a MandarinCorner.org video I Hate Getting My Period (audio and transcript link; video is also searchable on YouTube), we have the following sentence:


Nǐ bùnéng chī liáng xìng de shuǐguǒ
你不能吃凉性的水果。
You can't eat cool fruits.

I'm confused as to why 性 (xìng) is in this sentence.  It means &quot;nature&quot;, so I surmise it goes together with 凉性 (liáng xìng) to give &quot;cool natured&quot; (in the sense &quot;thermally cool&quot;), but I don't see why it's there.  E.g. 你不能吃凉的水果 (without the 性) seems to convey the same meaning, and even sounds less formal to me.
Question: Why is 性 in the sentence 你不能吃凉性的水果?
“凉性水果”  doesn't  exist  in  Chinese  context.  “寒性水果”  is  the  right  way.

“寒性水果”  doesn't  mean  low  temperature  fruit,  or  low  cotent  of  cal.

It  comes  from  Chinese  “中医理论”  and  “阴阳论”。Four  catogries  can  be  summerised  as:  “性寒”、“性平”、“性温”  and  “性燥”。