Without pepsin, the body would still successfully digest protein and survive, but the initial stage of your digestion in your stomach would also slow down greatly.
Although pepsin is your primary stomach enzyme that is responsible for chopping large dietary proteins into smaller fragments, the pepsin is not actually essential to maintain life.
The vast majority of protein that is broken down occurs after the food leaves your stomach and enters your stomach and pepsin is only responsible for between 10 percent to 20 percent of total protein digestion.
And without the pepsin, the pancreas releases powerful alternative enzymes that are known as proteases, which include carboxypeptidase, chymotrypsin and trypsin.
These enzymes easily pick up the slack of the pepsin, breaking down whole proteins into the absorbable acids that the body needs.
Although because protein would not get a head start in digestion in the stomach, your digestive system would also have to work harder without the pepsin.
And heavy protein rich meals like steak for example, would take much longer to break down without the pepsin.
If you have low pepsin, what happens is your body struggles to break down the dietary proteins.
The inefficiency of too little pepsin, triggers a cascade of digestive issues, nutritional deficits and physical discomfort.
When you have too little pepsin, it leads to poor digestion, increased infection risk and nutritional deficiencies.
With too little pepsin, large protein molecules are not cleaved into absorbable peptides.
This also causes food to linger in your stomach, fermenting and producing gas.
And pepsin and stomach acid are also required to extract and absorb critical nutrients like iron, vitamin B12, calcium and magnesium.
Stomach acid also acts as the primary barrier against pathogens.
And low levels of pepsin and stomach acid makes your GI tract more vulnerable to bacterial overgrowth, like SIBO and infections.
Common symptoms of too little pepsin include.
Fatigue, brain fog and muscle cramps.
Weak, brittle nails or hair that thins over time.
Having undigested food particles in your poop.
Experiencing feeling of extreme fullness just shortly after starting a meal.
And bloating, gas and belching, especially after eating meals heavy in protein.
If your stomach stopped producing pepsin, your body would struggle to digest proteins.
This would lead to severe gastrointestinal distress, bloating, and potential long-term malnutrition, although your small intestine would attempt to compensate using pancreatic enzymes to break the proteins down.
Pepsin is the enzyme responsible for initiating the digestion of proteins into smaller peptide chains.
Without the pepsin, intact proteins can move into the large intestine where they ferment, causing significant gas, bloating, and discomfort.
Because protein isn't efficiently pre-digested in the stomach, your body may also fail to absorb essential amino acids over time, leading to potential muscle loss and malnutrition.
Pepsin also functions in a highly acidic environment driven by hydrochloric acid (HCl).
Together, this acid-enzyme combination plays a vital role in destroying harmful bacteria and pathogens ingested with your food.
Without pepsin and optimal acidity, your risk for gastrointestinal infections spikes.