When the digestive system slows, it affects more than bowel movement
Food lingers longer in the body, energy dips and the whole rhythm feels heavier. Understanding how each stage of digestion works helps us see where things might be slowing down and what we can do to restore natural flow.
Think of digestion as a carefully timed assembly line. Each station has a specific job, and when one slows, the whole line becomes less efficient.
Digestion begins even before the first bite. When you see, smell or think about food, your brain signals the mouth and stomach to prepare. As you chew, three pairs of salivary glands release saliva containing enzymes such as ptyalin, also known as salivary amylase, which begins breaking carbohydrates into smaller sugars. Saliva also carries a small amount of lingual lipase, which helps start fat digestion. The more you chew, the more pre-digestion occurs, reducing the workload for the stomach and small intestine.
Once swallowed, food enters the stomach where hydrochloric acid and the enzyme pepsin begin digesting protein and destroying unwanted microbes. Zinc plays a role in supporting the mucosal lining and enzyme function involved in this process. When stomach acid levels are too low, food may move through only partly digested, contributing to bloating, wind, constipation or loose stool. Low acid levels may also impair nutrient absorption.
In the small intestine, bile from the liver and enzymes from the pancreas continue to break down fats, carbohydrates and proteins so that nutrients can be absorbed. The remaining material passes into the large intestine where beneficial bacteria ferment undigested fibres into short-chain fatty acids such as butyrate that help nourish the gut lining. When transit slows, food residues spend longer in the colon, which can lead to gas, fermentation and greater exposure of the bowel wall to waste metabolites. Research suggests that a longer transit time may increase colorectal cancer risk, though this relationship is complex and influenced by multiple factors.
Supporting digestion means caring for each station of this assembly line. Smelling food before eating activates the cephalic phase. Chewing slowly releases saliva and enzymes that begin digestion in the mouth. Including zinc-rich foods such as pumpkin seeds, lentils, cashews, beef and oysters supports stomach and enzyme health.
Fibre is equally important. Soluble fibre, found in oats, barley, lentils, chickpeas, beans, psyllium husk, apples, pears and flaxseed, feeds beneficial bacteria that produce butyrate and other short-chain fatty acids that nourish the gut lining. Insoluble fibre, from vegetables such as carrots, broccoli, cauliflower, courgette and leafy greens, along with nuts, seeds, brown rice and quinoa, adds gentle bulk to keep the bowel moving. Including resistant starch from cooked and cooled potatoes, rice and green bananas can further support butyrate-producing bacteria. However, certain fibres such as psyllium may not suit everyone, particularly those with sensitive digestion or active gut symptoms. Begin slowly, increase variety over time and drink plenty of water so fibre can do its work effectively.
Every digestive system is unique. Understanding your own rhythm and triggers is key. As Patrick Holford reminds us, we are not only what we eat, but what we can digest and absorb. The more we understand what slows our digestion, the easier it becomes to bring rhythm and flow back to both body and mind.
When digestion slows it is an invitation to look deeper. Understanding how this intricate system works allows us to make small changes that bring lasting results. When we chew, rest, breathe and eat with awareness, we create the foundation for flow in every part of life.
References:
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