Pollen, the male gametophyte of flowering plants, is a high energy mat
erial, which is collected by insects and stored as food reserve. Polle
n has been used traditionally by humans for religious purposes and as
supplementary food. Pollen is a concentrated, energy and vitamin rich
food that in contemporary times is not only consumed as a dietary comp
onent, but also is used in alternative medical treatments. Pollen has
potential importance as a supplementary and survival food, and for con
ditioning of athletes. Pollen has been used medically in prostatitis,
bleeding stomach ulcers and some infectious diseases, although such us
e has been questioned by the medical profession. Pollen may also be us
ed for treatment and prevention of the high-altitude-sickness syndrome
. Because some individuals are allergic to pollen, and various pollen
species contain specific allergens, individual sensitivities must be t
ested before pollen is used as a treatment or as a supplementary food.