It is suggested that d-chiro inositol is beneficial for PCOS, and may help increase insulin sensivity (see links below).
D-chiro is expensive (best price I found was $2/day for 1200mg/day, which is an effective dose from one of the linked studies below).
However, d-chiro is found in high concentration in buckhweat farinetta. Buckwheat farinetta is a "fine granulation of mixture of aleurone layer of hulled seed and seed embryo, the richest parts of seed." Buckwheat farinetta is cheaper, about $1.4/serving of a comparative dose. Additionally, it is a real food, so for the $1.4 dollars/day, I will actually consume calories. The question become, are those calories beneficial?
How would you compare the nonpecuniary costs and benefits of buckwheat farinetta? Considerations 1. As real food, perhaps d-chiro will be be more bioavailable in food form. 2. Also contains zinc, iron, manganese, copper, magnesium, potassium (amounts not specified) 3. Must contain phytates, which may mitigate absorption of minerals. And perhaps even d-chiro (thoughts?) 4. High in PUFA's (I store in freezer) (10 grams fat per effective dosage serving, 2 of which are saturated, perhaps rest are PUFA's). I do not consume other industrial seed oils. 5. 39 gram carbohydrates, (12 are fiber, 4 are sugar). I am comfortable with this amount of carbohydrate in my diet as it is my primary daily carbohydrate source. I do however often combine this with 1 small banana, for an additional 23 carbohydrates. This is generally my post-workout meal. I don't have terrible blood-sugar management despite PCOS, and I think the protein/fat w/ the buckwheat helps. 6. 35 grams of protein/serving. Hey, I like protein, but maybe this a lot? Perhaps great post workout. 7. May reduce estrogen (a problem w/ pcos, may also lower cholesterol- take that how you will) 8. It's difficult to actually get the 100 grams in required to get the effective dose. Perhaps I don't need quite that high of a dose though? The 400 calories here may crowd out other beneficial food in my diet.
I don't think it would be beneficial to consume whole groats given the glycemic/carbohydrate load and the shear amount necessary to get sufficient d-chiro. I am
Additional questions: The buckwheat farinetta comes pre-milled, so if you soak it, you can't cast off the water without losing the farinetta itself (unlike an entire groat).
My intuition is to go with the "food" and supplement when I don't workout (to make room for the carb-load) or have the time to cook.