a) Formation of 1kg of meat in an animal requires 3-10 kg of cereals. Therefore , switching over from grain to meat will increase consumption of cereals.
b) The emerging area of research is growth and evaluation of SCP microbes. The SCP microbes are being grown on industrial scale for obtaining biomass rich in proteins, minerals, vitamins, unsaturated fats and carbohydrates. This can overcome the problem of malnutrition.