Chewing( mastication) is the process by which
food is crushed and ground by teeth and jaws. Most people put food in their mouth, chew a few
times, and swallow. It is an extremely important, yet oftentimes overlooked,
part of healthy digestion. Chewing doesn't really take much time and effort but
majority of individuals put food in their mouth, chew a few times or even
hardly chew and swallow! This guarantees no benefits in terms of better health
and enjoyment of food. to chew your food well
Mechanical
and chemical breakdown
It is the first step of digestion and
it increases the surface area of foods to allow more efficient break down by enzymes. Chewing
mechanically breaks down very large amounts of food molecules into smaller
particles. This results in food having increased in surface area, an important
contributing factor to good digestion. Chewing ensures prolonged food exposure to saliva.Saliva
is not only helps to lubricate the food, allowing for less stress on your
esophagus, but also contains enzymes that contribute to the chemical process of
digestion. Carbohydrate digestion begins with enzymes in your saliva
breaking down some of the chemical bonds that connect the simple sugars that
comprise starches. At the same time, the first stage of fat digestion begins in
your mouth with the secretion of enzymes by glands located under the tongue.
Chewing
relaxes the lower stomach muscle
Chewing is directly connected with the movement
of food through your digestive tract, and, in particular, with the movement of
food from your stomach to your small intestine. At the lower end of your
stomach, there is a muscle called the pylorus. This muscle must relax in order
for food to leave your stomach and pass into your small intestine. Sufficient
saliva from optimal chewing helps relax the pylorus, and, in this way, helps
your food move through your digestive tract in healthy fashion.
Chewing
triggers the rest of the digestive process
The
process of chewing also activates signaling messages to the rest of the
gastrointestinal system that trigger it to begin the entire digestive process.
This is because when chewing is a well-paced, thorough process, it can actually
be said to belong to the "cephalic stage of digestion," the phase in
which you first see, smell, and taste your food. The length of time spent
chewing the food is related to the length of the cephalic stage of digestion
since with more extensive chewing, the longer the food gets to be seen, tasted,
and smelled. Cephalic phase responses have been extensively analyzed in the
research literature. The release of small messaging molecules that are critical
for digestion-such as cholecystokinin, somatostatin, and neurotensin-have been
found to increase by over 50% just by the mere sight and smell of food.
Additionally, research has shown how chewing, as well as the activation of
taste receptors in the mouth, can prompt the nervous system to relay
information to the gastrointestinal system to optimize the process of
digestion. For example, stimulation of the taste receptors can signal the
stomach lining to produce hydrochloric acid that helps in the breakdown of
protein. Additionally, chewing signals the pancreas to prepare to secrete
enzymes and bicarbonate into the lumen of the small intestines.
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Advantages of thorough chewing and effects of non-thorough chewing
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Advantages of thorough chewing and effects of non-thorough chewing
How to ensure thorough chewing
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