Should I take Maca if I have a thyroid condition?

You should consult a competent medical professional before taking Maca if you have thyroid conditions. From our research, Maca seems to have helped people with conditions of under-active thyroid (hypothyroidism) ie their thyroid numbers improved over time. However, not everyone will respond to Maca the same way. Some may experience instant improvements, while others need a longer time. Note that Maca, a cruciferous (Brassica) vegetable, contains good amounts of iodine which is required for thyroid function; it also contains glucosinolates which are associated with lower risks of certain types of cancer such as breast, prostate and colon cancers. Some are concerned that the presence of glucosinolates in Maca may inhibit iodine uptake by the thyroid. In such cases, we would recommend Gelatinized Maca Powder (pre-cooked) for people with underactive thyroids instead of the raw maca version, as cooking reduces and/or deactivates glucosinolates. It is best to avoid Maca if you have an overactive thyroid (hyperthyroidism) as Maca can actually stimulate that gland.