It can be eaten raw, boiled and as flour (after drying and grinding). Nutrients In Singhara or Water Chestnut (Trapa bispinosa). Singhara is rich in proteins, carbohydrates, amylose,citric acid, vitamin B, C, iron, calcium, magnesium, phosphorus, iodine,manganese,phophorylase and contains negligible fat. Singhara is very rich in carbohydrate and 100 gm of it gives 115 calories. 2  It help in proper functioning of thyroid. 3  The fruits are used to treat sore throat, anemia, fractures, urinary disorders, and in leprosy.
Quercus marcocarpa, the bur oak, is the tree featuring the largest acorns of any North American oak species, notes the âNational Audubon Society Field Guide to Trees: Eastern Region.â In comparison to the fruits of other oaks, they are huge.
Like other nut bearing trees, oaks produce a large amount of acorns; unlike other nut-bearing trees (pecan, walnut and hazelnut) the seed nuts cannot be consumed by humans or most animals because of the tannin in the seed. A huge quantity of acorns must be produced for an oak to propagate itself.