When I was with Supramania Swami of Thiruvannamalai, his wife served us a drink and she told me it was made of Kollu (Macrotyloma uniflorum, horse gram). I never knew that bean had so many medicinal properties and benefits. Read about the health benefits of Kollu at
http://www.valuefood.info/food/natural-food/nutrition-health-benefits-pulses-cereals/health-benefits-of-horse-gram/,
http://paulhaider.wordpress.com/2012/04/24/health-benefits-of-horse-gram-or-cowpea/,
http://www.toxicologycentre.com/English/plants/Botanical/muthira.html and http://urpjournals.com/tocjnls/7_13v3i4_4.pdf
http://www.valuefood.info/food/natural-food/nutrition-health-benefits-pulses-cereals/health-benefits-of-horse-gram/,
http://paulhaider.wordpress.com/2012/04/24/health-benefits-of-horse-gram-or-cowpea/,
http://www.toxicologycentre.com/English/plants/Botanical/muthira.html and http://urpjournals.com/tocjnls/7_13v3i4_4.pdf