Carolinamandolina wrote:No I'm not involved with the Fife diet people.
When you harvest the grain, is that it for the plant or does more grain grow back? I'm just thinking you'd have to grow loads and loads of them to have a decent amount of grain..
They are annuals - so yes, that's it for the plant. This is from a Canadian site - the best information I've found so far on growing quinoa (and amaranth, which is similar):
Yields. An ounce or two of seed per plant is common but you can easily get over six ounces per plant grown in your best compost. Normal commercial yields for amaranth and quinoa are 1200 to 2000 pounds (500-900 kg) per acre. Agricultural combines are still being adapted to the lightness of the seed, and full harvest potential is yet to be realized. Much higher results are obtained from labour-intensive harvesting: yields of over 5,000 pounds per acre have been reported from Central and South America.
http://www.saltspringseeds.com/scoop/powerfood.htm
Personally , I wouldn't bother with it, as my garden is only small, and I think better used for other stuff. But if you have a large garden, it should be interesting! Didn't know you could eat the greens as well, so a double-use plant is doubly useful!