"The Warring States Policy" records that "there are dates and chestnuts in the north ... enough to feed the people"
"An eclipse of three dates will keep you from getting old."
"Compendium of Materia Medica" records: "Jujube tastes sweet and warm, ... sweet can replenish middle jiao, and warm can replenish qi."
"Ben Jing" said: "Jujube can calm the middle energizer, tonify the spleen, help the twelve meridians, calm stomach qi, dredge nine orifices, benefit less qi, lower body fluid and balance various drugs."
"Strengthen bones and muscles, help Yin Qi and make people fat."