It is vital to know whether the given combination of food items is appropriate or not. Ayurvedic literature discusses in detail about various food combinations and warns that many food items if eaten together combine to act like poison in the body. For instance, honey and desi ghee when mixed in equal quantities and eaten, acts like poison.
For digestion of constituent substances of a diet different digestive juices are required. Shwetsaar substances are digested by alkaline juices whereas proteins are digested by acidic juices. Shwetsaar and protein rich foods, when eaten together, will trigger the release of both alkaline and acidic juices leading to putrefaction of protein and fermentation of shwetsaar. This disturbs the process of digestion.
Similarly foods like vegetables, fruits, pickles, curd, kheer, sweets and papad etc when eaten together disturb the digestive process.