Abstract
Some commonly eaten species of roots/tubers namely: Capsium annum (red and white species), Manihot utilisima, Dioscorea dumentorum and Colocassi sagiltifolium were analyzed to compare their calcium-phosphorus ratio by method of APHA, (2018) and AOAC (2005) respectively. The results showed much higher proportions of phosphorus than calcium as against 1 to1 or 1.5 to 1.0 ratios which are the ideal dietary calcium-to-phosphorus ratio. The results suggest that calcium be seriously supplemented and or complemented in these commonly eaten food staples since excess phosphorus tends to suppress the transformation of vitamin D into calcitriol, one of the routes by which the body maintains calcium levels. This will go a long way in reducing conditions of porous, brittle and fracture prone bones that lead to bone diseases which are rampant in our society today.
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