What is the main disadvantage of trying to adjust the water

What is the main disadvantage of trying to adjust the water activity (aw) of a food with salt?

Solution

Salt is majorly used to reduce water activity in food for preservation and reduction of microbial growth, but current scenario in relation to health emphasized as

1. High content of salt in dietary food create hypertension and kidney stone problem in human beings.

2. Old patient are on greater risk of stroke because of high sodium content of processed foods

3. Salt affects calcium level in body and bone density

4. It also responsible for gastric cancer, kidney stone and severity of asthma