冬令进补，春天打虎！
 

dōnglìngjìnbǔ, chūntiāndǎhǔ!

Meaning:

Supplement nutrition in winter, then you can defeat a tiger next spring.

The traditional idea of nutrition in China is very different from that in the western world. We understand them as the recourse of power, in winter we store them and in the very next spring, they will unleash their really ability to help us develop our health.

The most common medicines or prescriptions nearly always contain things like 人参rénshēn (ginseng), 鹿茸lùróng（velvet antlers) or another traditional herbal medicine. Both are considered to have hot elements in them and are quite valuable. This being the case, they will make your body too hot if you take them in any other season but winter.