For
almost 2000 years, maca has been an important traditional
food and medicinal plant in
its growing region. It is regarded as a highly nutritious
food and as a medicine that enhances strength and endurance
and acts as an aphrodisiac.
The nutritional value of dried maca
root is high, similar to cereal grains such as rice and
wheat. It contains 60% carbohydrates, 10% protein, 8.5%
dietary fiber, and 2.2% fats. Maca is rich in essential
minerals, especially selenium, calcium, magnesium, and iron,
and includes fatty acids including linolenic acid, palmitic
acid, and oleic acids, as well as polysaccharides. Maca's
reported beneficial effects for sexual function could be
due to its high concentration of proteins and vital nutrients.
Small-scale clinical trials performed in men have shown
that maca extracts can heighten libido and improve semen
quality. Larger studies are needed to confirm these preliminary
results. In particular, studies on men with sexual dysfunction
and known infertility are needed. None of the studies
conducted so far show any effect of maca on sex hormone
levels. No toxicity has been reported.
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