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PapersPMID:27548190

Acceptability, Safety, and Efficacy of Oral Administration of Extracts of Black or Red Maca (Lepidium meyenii) in Adult Human Subjects: A Randomized, Double-Blind, Placebo-Controlled Study.

Pharmaceuticals (Basel, Switzerland)2016The record ↗

findings
2
compound
1
endpoints
2
  1. Finding, moderate evidenceno difference foundBody mass index
  2. Finding, moderate evidenceno difference foundSerious adverse event incidence
Study, every finding
RCT · 3 months
Dose studied, every finding
3 g/day in a sachet, 12 weeks

No finding here moved its endpoint.

What did not

How to read these marks →
  • No detected effect on body mass index

    moderate

    “The 12-week treatment with spray-dried red maca extract did not have any significant impact on BMI (p = 0.56 compared to placebo); neither did the black maca extract (p = 0.1 compared to placebo).”
    Population
    Healthy adults aged 18-65, men and women, living at low altitude (Lima) and high altitude (Cerro de Pasco), Peru; black maca arm versus maltodextrin placebo
  • No detected effect on serious adverse event incidence

    moderate

    “No serious adverse effect was reported in the groups treated with a placebo, red maca, or black maca at LA and at HA.”
    Population
    Healthy adults aged 18-65, men and women, living at low altitude (Lima) and high altitude (Cerro de Pasco), Peru; red maca arm and black maca arm alongside a maltodextrin placebo arm

Study record

Design
randomised controlled trial
Species
human
Population
Adult men and women aged 18-65 years living in Lima (150 m, low altitude, LA) or Cerro de Pasco (4340 m, high altitude, HA), Peru; spray-dried hydroalcoholic (70% ethanol) extract of red maca or black maca, 3 g daily for 12 weeks, versus maltodextrin placebo (red and black are phenotypes of the one plant)
Participants
193
Comparator
placebo
Duration
84 days
Endpoints measured
93