For several years the benefits deriving from the consumption of vegetable fibers have been discussed and analyzed from many points of view because they are fundamental for the well-being and regular bowel movementsToday, in fact, it is recommended (for healthy individuals) to consume fruit and vegetables daily, the foods richest in plant fiber.
How did this recommendation come about?
For a number of reasons, including the high content of vitamins and minerals, essential micronutrients, contained in these foods. Also very useful the high water content, essential in contributing together with minerals to good hydration. Last but not least comes the presence of fibers, very important for the intestinal regularity.
How many types of fiber are there?
Without going into technical aspects that are difficult to understand, we can narrow the field to 2 large categories: that of soluble fibers and that of the insoluble fibersSoluble fibers, when in contact with water, tend to form a viscous gel that coats and lubricates the digested material. Insoluble fibers, on the other hand, tend to absorb water, significantly increasing in volume.
Why is the plant fiber content in foods important, and what roles does it play in health?
Fiber content is very important because, although it doesn't directly contribute to energy or nutrient supply, it plays a key role in the human digestive system in several essential ways. In addition to ensuring proper digestive function, fiber consumption is also particularly beneficial for maintaining normal cholesterol levels and reducing the associated risk of cardiovascular disease.
What are the most important direct effects?
They are different and manifest themselves at different levels of the digestive system. In the stomach, the fibers tend to swell, favoring an early feeling of satiety, thus contributing to a better appetite controlAt the level of the small intestine their presence allows to "slow down" the digestive processes promoting a slow and gradual absorption of nutrients, while maintaining the hydration of the digested material. At the colon level, their volumizing effect allows for the maintenance of adequate hydration and lubrication of the feces, promoting their physiological expulsion and the state of regular bowel movements.
What are the most important indirect effects?
Many of the most important indirect effects are linked to the absorbent capacity of the fiber, capable of binding not only to water but also to other substances, such as cholesterol, whose availability it reduces for the body, contributing to a better metabolic healthThis effect can also reduce the availability of other substances, such as toxins or contaminants present in certain foods or produced by certain cooking methods, another positive effect. However, it can also reduce the availability of certain nutrients, such as iron, so fiber consumption should be encouraged in healthy individuals, but not overindulged.
Are there any particular aspects to consider when consuming fiber for regular bowel movements?
It is very important to underline that the effects described are achieved only in the presence of a adequate level of hydrationIf, for some reason, you were to consume too little fluid (for example, by drinking too little water throughout the day), fiber would end up having virtually opposite effects, especially on the small intestine and colon. This is so true that in cases of digestive disorders that cause diarrhea, consuming fiber with a little water can be used as a remedy for normalizing stools, precisely because of its significant absorbent properties.
How much fiber should we consume to have regular bowel movements?
There are several indications on this matter, although for the sake of fairness it is important to reiterate that there are not yet any guidelines available that are strictly comparable to those for macronutrients (proteins, carbohydrates and fats) and micronutrients (vitamins and minerals). Using the indications currently available, the average suggested intake ranges from 20-30 g of fiber per day, at the indication of 10 g of fiber per 1000 kCal ingested through the diet. Ideally, these amounts should be divided between soluble and insoluble fiber.
How can you orient yourself if you can't consume an adequate level of fiber with your usual diet?
When for various factors it is not possible to obtain an adequate consumption of fibre with the common diet, food supplements for intestinal regularity They can be an appropriate way to ensure adequate intake. Obviously, taking care to maintain adequate fluid intake throughout the entire intake period.
In healthy individuals (with no contraindications), fiber consumption represents an important tool for maintaining metabolic health, especially that of the digestive system. It should not be underestimated when aiming to promote health, well-being, and quality of life.
