Rava Dosa is an easy crisp dosa made with semolina rice flour and all purpose flour. What's good about Rava Dosa? Curd + Low fat Curds : Curds help in digestion as it has very good bacteria. Probiotics in curds acts as a mild laxative but in case of diarrhoea and dysentery it is a boon if curd is used with rice.They help in weight reduction good for your heart and build immunity. Rava (semolina sooji) : The pros for rava. Semolina is a fairly good source of Magnesium and phosphorus which is necessary to keep our nervous system healthy and working. It is low in sodium & fat. The cons of rava. The glycemic index of semolina is 66 which is a medium GI food and not good for diabetics and healthy heart as there is also no fibre.