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Posted on: January 8, 2020 by Louise
Digestive enzymes – the stuff of life…
Enzymes are clever little molecules of protein that are made from amino acid chains that help with digestion. They act as catalysts (or triggers) to bring about specific biochemical reactions in the body, which produces over 3,000 kinds.
Every process in the body is driven by enzymes of one kind or another – whether acting alone, in combination or in complex chain reactions. They are therefore vital substances – without them, many biological functions would simply be impossible, or too slow for us to survive.
So, they are certainly worth finding out a little more about because they play a central role in helping us to achieve optimal nutrition, health and vitality.
Types of enzymes
If we are deficient in enzymes, this can have a direct effect on the efficiency of important processes in the body, which can become unbalanced, making us more prone to ill-health.
The structure of enzymes establishes their particular function or use. Enzymes produced by the body can be classified into two types: metabolic enzymes and digestive enzymes.
Metabolic enzymes are primarily involved in energy production and cellular activity on every level, but they also have other functions – like helping to detoxify the body.
Digestive enzymes also have a number of functions, chief amongst which is assisting in the break down of food into its constituent nutrients (as the name suggests), followed by the absorption of these. The body uses different types of digestive enzymes to digest fats, proteins and carbohydrates for example.
Enzymes can also be obtained through dietary sources, i.e. food enzymes present in natural whole foods, such as leafy green plants, fruit and vegetables. These assist the body with the digestion of that particular food.
For the purposes of this article, we are particularly interested in the role played by enzymes in digestion.
The process of digestion
During digestion, food is broken down into a simple form that can be absorbed by the body. The process starts in the mouth with the chewing of food, continues in the stomach and small intestine where it is chemically broken down by the digestive juices and enzymes and finally gets completed in the large intestine. Basically, food is taken in, digested to extract essential nutrients and energy and any remaining waste is finally expelled.
Digestion is arguably one of the most important and complex processes in the body, because it dictates our nutrient absorption, as well as our toxin and waste elimination. It also involves a wide number of organs and nutrients. For instance:
– Organs and other components: the mouth, teeth, tongue, oesophagus, stomach, small intestine, large intestine, liver, gallbladder, pancreas, rectum, anus and other organs are all involved in the digestive process.
– Nutrients and other chemicals: such as saliva, hormone regulators, nerve regulators, gastric juices, friendly bacteria, bile, hydrochloric acid and, of course, digestive enzymes.
The efficiency of the digestive process therefore affects everything from immunity and hormone balance, to metabolism, toxic load, general health and well-being.
A digestive system that is sluggish or functioning less than optimally can lead to a number of unpleasant symptoms and conditions, including constipation, imbalanced bowel flora, irritable bowel, heightened toxic load and even self-poisoning. Healthy digestion is therefore arguably the cornerstone of good health.
A bit more about digestive enzymes
Digestive enzymes play a central role in healthy digestion.
The human body produces around 22 different kinds, each of which acts on a different type of food. They work best at a specific temperature and pH and also have specific sites of action, such as the mouth and stomach.
As mentioned above, these enzymes are used to help break food down into nutrients and waste. The nutrient molecules must be digested into molecules that are small enough to be absorbed through the lining of the small intestine. When we don’t produce enough digestive enzymes to complete this process efficiently, or there are insufficient enzymes available from the foods in our diet, this can lead to what is called partial digestion.
Food that is not properly broken down cannot be absorbed. It can therefore sit fermenting in the stomach and small intestine, or putrefying in the colon. This can, in turn, lead to increased activity of harmful bacteria and parasites in the gut, along with poor nutrient absorption, fatigue, digestive upset, flatulence, bloating and more serious health issues (including food intolerances and allergies).
Digestive enzymes and health
In relation to digestion and nutrition therefore, it is essential to recognise the critical role of enzymes and the importance of having sufficient levels of these. However, according to Dr. Edward Howell, each of us has a finite reservoir of enzyme activity.
What’s more, the complex digestive process requires a great deal of enzyme activity to extract nutrients from food and translate these into all the various tasks of the body. Factors such as caffeine and alcohol intake, illness, pregnancy, stress, severe weather and exercise can also all take their toll on our enzyme reserves.
Plus, our bodies produce fewer enzymes as we age. By age 35, the production of enzymes in the stomach, pancreas and small intestines begins to decline. Enzyme production in the body decreases by 30% in most adults over 50.
It therefore follows that it is sensible to put the least possible strain on the digestive system and its enzyme reserves, both by eating a healthy diet and, in particular, including a high number of enzyme-rich foods in it (such as raw foods, sprouted and/or fermented foods).
Unprocessed whole foods contain most of the enzymes required for digesting that particular food, which can then help to relieve some of the strain on the body when having to produce its own enzymes. Many people also consider digestive enzyme supplements, to support their digestion.
In contrast, a diet high in enzyme-poor, highly refined and processed foods can place a significant strain on digestion. The body will try to compensate by producing more of its own digestive enzymes to make up for the lack of external plant enzymes, thereby depleting its own reserves more quickly.
Theoretically, the more we can preserve our reservoir of precious enzymes, the better able our bodies will be to protect themselves against ill-health and maintain a healthy balance between activity, repair, immunity and recovery.