Table 1.

Properties for maca after in vivo administration in experimental animals.

Species	Property	Source
Rats	Increase sperm count and sperm motility	[16]
	Increase male sexual behavior	[13, 22, 23]
	Small effect on rat male sexual behavior	[24]
	Nutritional	[25]
	Antistress	[26, 27]
	Prevent testosterone-induced prostatic hyperplasia	[20]
	Reversed osteoporosis	[28, 29]
	Neuroprotective effects	[30]
	Protects against UV radiation	[31]
	antioxidant status, lipid, and glucose metabolism	[32]
Mice	Increase male sexual behavior	[13]
	Increase embryo survival	[33]
	Prevent testosterone-induced prostatic hyperplasia	[34]
	Increase number of offsprings	[33]
	Improve memory and learning	[35–37]
Guinea pigs	Increase number of offsprings	[38]
Fish	Nutritional	[39, 40]
	Increase embryo survival	[39]
Bulls	Improve sperm quantity and quality	[41]
	Unaffected mating behavior