Multi Maca supplements are generally well-tolerated, but some users report mild and temporary digestive issues such as stomach discomfort, bloating, or diarrhea[13]. These symptoms often subside as the body adapts, but if they persist, discontinuation and medical consultation are recommended[13].
Hormonal changes can occur, including alterations to menstrual cycles, libido, or mood, due to maca’s influence on hormonal balance[13]. Individuals with pre-existing hormonal imbalances should monitor for any significant symptoms and consult a healthcare professional if necessary[13].
Allergic reactions—though rare—have been documented, ranging from itching and rashes to severe symptoms such as difficulty breathing or swelling of the face, tongue, or throat[13]. Immediate medical attention is advised for any signs of allergy[13].
According to broader studies, maca is considered to have a good safety profile with no fatal adverse effects reported, and most people experience no serious adverse reactions when taking up to 2-3 grams of maca daily for several weeks or months[3]. Some transient side effects such as gastrointestinal upset, headache, or irritability have been noted[3]. Rare case reports include vaginal bleeding and a manic episode[3].
Maca may act like estrogen, so those with hormone-sensitive conditions (e.g., breast or uterine cancers, endometriosis, fibroids) should avoid maca supplements as a precaution[11].
Safety for pregnant and breastfeeding women has not been established; these groups should avoid maca due to insufficient research[11].
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