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1.Though both are dairy products, widely used and might taste and look similar, but yet yoghurt and curd have clear differences. Many people even mistake curd for the Western name of yoghurt. The first basic difference is the method of preparation. Curd is prepared by milk fermentation from Lactic Acid bacteria. The lactic acid forms a reaction with the globular protein of milk and produces a thick consistency called curd. Curd can be prepared at home. Unlike, curd, yogurt cannot be made at home as it is made by milk fermentation with live strains of Lactobacillus bulgaricus and Streptococcus thermophilus. These bacterial strains react with the sugar present in the milk which produces lactic acid. The lactic acid, now reacts with milk protein, producing yoghurt.
2.As far as nutritional value is concerned, yoghurt is a rich source of protein, calcium, iron, potassium, and vitamins B5 and B6. Compared to curd, yoghurt contains less lactose so people with lactose intolerance preferred them more.
On the other hand, curd contains more lactose as it is prepared from fresh milk. It is also a rich source of protein, calcium, phosphorus, iron and vitamin B6. It helps to regulate digestion.
3.As far as health is concerned, both have their respective preferences.
Yoghurt contains high probiotics so it helps maintain gut health for its beneficial bacteria content and is also preferred for weight loss. Since it contains high potassium, it is useful for people with high blood pressure.
Curd is a storehouse of good bacteria too so it helps to maintain a strong immune system. Its nutrients are absorbed quickly in the system so it is beneficial for the digestive system and can resolve digestive issues. Because of its rich source of calcium, it is healthy for bone health and has beauty benefits for hair and skin.
4.Yoghurt is a fermented dairy product, produced by standardised bacterial live strains at a controlled temperature so available in different flavours and different textures. It cannot be made at home. Since it is commercially produced, it can be fortified with vitamins and has high probiotics. It has usually a mild tangy taste.
Curd is made from fresh milk, by adding an acidic substance like lemon or vinegar or adding a spoonful of curd from the previous batch. So, it can be easily prepared at home. Homemade curd can retain more amount of lactose due to slow fermentation. Depending upon the length of fermentation, it can taste either mild soreness or may have a strong tang.
5.The debate of which is better is irrelevant as both of them are dairy products with great health benefits. The key difference between curd and yoghurt is the method of preparation. Depending upon the preferences in taste, texture and flavours, people may prefer either of them. For individuals with lactose intolerance, yoghurt is preferred as it contains less lactose. For people who prefer thicker consistency and texture, yoghurt is strained from the liquid to make it thicker after fermentation. Greek yoghurt is a thicker and creamier version as it is strained multiple times. On the other hand, curd is low in calories and preferred for people with cholesterol, obesity and hypertension.
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