Protease are enzymes. Why the plural ? Because Protease is a name given to a group of enzymes. They are more than one. Their function is to break down or modify proteins or peptides. Then the broken fragments of proteins and peptides are assimilated in the digestive system.
They are also called Proteolytic Enzymes.
Whole grains contain Protease or Proteolytic Enzymes.
Please note, I said whole grains, NOT white bread.

Benefits of the Protease
Fights Infections
Helps Digestion
Reduces Inflammation
Dissolves Blood Clots
Lowers the aging process
Repairs ruptured Tissues
Helps in Energy Production
Improves the Immune System
Helps in Healing the Wounds
Helps to restore the Energy
Decreases the risk of Stroke
Regulates the Hormonal balance
Improves the Circulatory System
Cleans the unwanted protein from the Circulatory System
It speeds up the recovery process in the following conditions
Sprain
Strain
Bruises
Surgery
Fractures
Arthritis
Contusions

Effects of deficiency Protease in the Body
The excess of protease causes various problems in the Gastrointestinal Tract.
Bloating
Cramping
Heart Burn
Flatulence
Acid Reflux
Constipation