I want to share a good N=1 experience with Red Maca. I'm not a great researcher so I won't speculate on the mechanisms at work here.
My prostate has been getting larger over the last few months. Not nearly to the point of full-on BPH but annoying nonetheless and heading in the wrong direction. Concerned, I began to read some of the many forum threads and articles on the main site. This one was particularly relevant:
http://www.peaktestosterone.com/BPH_Benign_Prostate_Enlargement2#6 in the article is Red Maca. I like maca for other reasons but had stopped buying it after a recent 2x or 3x price increase across all suppliers. On Amazon most packages don't specify the color of the maca used but I found one that did specify red. Got it in the afternoon, took it (a heaping teaspoonful in water - more on that later), eventually went to bed.
In the morning, the morning relief was free and easy, no perception of constriction whatsoever. The uncomfortable swelling down there was mostly gone, or at least noticeably reduced. Wow. I had another spoon and started my day. By evening some swelling was back, though not as uncomfortable. Another spoon in the evening, and by morning there was no swelling whatsoever.
I kept up two tsp per day for three days then yesterday forgot an evening dose. This morning I felt fine but am curious how it will feel as the day progresses.
This is the maca I used:
http://www.amazon.com/dp/B00GQMEFAWThis stuff tastes great to me simply mixed in water or in my eggy coffee concoction. I absolutely guarantee that you will like it too, especially if you are in to earthy, natural, hey-that's-really-good-dirt-do-I-detect-some-tree-bark-and-oh!-is-that-manure kinds of things.
This particular maca has the strong taste which I have come to believe is necessary to ensure potency. The Nutiva version I had purchased originally had it too although they did not specify color on the bag. Not all brands have it - many are a yellow or pale yellow powder with neither strong scent nor taste. I have tried both Raw and Gelatinized and feel that raw is better, despite the belief that cooking is necessary to break down the starch.