Nutritional guidelines to prevent heart diseases(Part 2)

Limit your intake of salt

As mentioned and discussed in Powertec 152, increased intake of salt during yourelderly life may increase your blood pressure (hypertension) because your kidneys could not eliminate as much salt as they used to be from your body. When you start to experienceit and it remains unchecked and untreated for several number of years, your heart enlarges, and you have what is called in medicine as cardiomegaly. When you have this medical condition and still you refuse to take the necessary medications or fail to take them, your heart will eventually fail, and you have the condition medically known as heart failure. You may die from it.

It is clear from the preceding section that too much intake of salt from your diet could lead to a heart disease; therefore, immediately after knowing that you cannot afford to take excess salt, you need to exert extra caution and effort in determining which food(s) to take and not to take.

Increase your intake of foods rich in fiber

Beneficial effects

Dietary fibers are substances present in foods which are not digested in your gastrointestinal tract (GIT). This means that they stay in, and pass through, your GIT without being digested and transformed into another substance. They remain as they are, without contributing any substance, vitamins, or minerals to your body. However, they have the following important functions:(1) they increase the bulk of your stool, leading to promotion of your bowel movement, and thus preventing constipation and colon cancer, (2) prevent the absorption of cholesterol, which is incriminated as one of the causes of diseases in your heart and blood vessels[1], and (3) lower the total food calories that you will take each daycausing you to lose weight and have lower blood glucose.

Since the fibers remain undigested in your GIT, they form greater portion of your stool; since your GIT is sensitive to the volume of your stool, the bulkier your stool is, the more your GIT will contract, and your stool will be finally squeezed out into the outside. Hence, if you have on and off constipation, taking adequate amount of fibers daily will help you overcome it. When you have regular bowel movement, the time contact between your stool and the inner lining of your intestine is shortened. With this, the chance that your food—which could be an unhealthy food—willinduce the start of cancer in your intestine will be lessened. Hence, you will be protected from it. In addition to your protection from constipation and cancer, fibers will help you avoid being overweight and having high blood glucose. These take place because more fibers in the diet will make you feel full from the food that you have been eating sooner than when there are no adequate fibers.As a result, you will eat less than when your diet is fiber-free.

Types of fibers

Although dietary fibers could not be digested, some of them could be dissolved in water, while others remain undissolved. Hence, there are two types of fibers: (1) water-soluble, and (2) water-insoluble. Examples of each type are listed in Table 1 below:

Food sources of dietary fibers                             (End of a series of 2)

Reference:

  1. Roth, Ruth A. Nutrition and Diet Therapy. Singapore: Delmar Learning, 2007.
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