On boiling, most of the proteins coagulate at temperatures above 70°C. An example is the boiled egg.
Boiling an egg doesn't cause loss of protein, it does denature the protein and changes its form (changes from clear and runny to hard and white).
At the boiling point salt become a gas.
protein of the egg is mainly albumin. It is denatured by heating boiling and it becomes solid
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No!
The side effects of protein supplements is that they cause increased bowel movements.
Enzymes are not alive, so they cannot be killed. Typically though, bringing an enzyme to a boiling temperature is enough to denature it. There's no evidence though that denatured enzymes in food at all affects the nutritional effects of the food.
side effects of protein obesity and heart problems
Protein and sleep
Gelatin is a protein extracted from bone and cartilage by boiling.
Effects are: boiling or thermal decompostion.
check out this detailed list of adverse effect of protein deficiency in the body.