What are Fats?
Fats are classified as the most vital portion of the diet, according to nutrition facts, and they play a critical role in living a healthy life.
The public’s and health enthusiasts’ primary concerns are fats and cholesterol. This is for a legitimate purpose. Fat is the most concentrated source of energy in the diet, with 8 to 9 calories per gram, compared to four calories per gram for carbs and proteins. Carbon, hydrogen, and oxygen are the three elements known to exist in fat. However, it contains more carbon and hydrogen than oxygen, resulting in calorie content of nine per gram. Fats are a type of lipid that is made up of a mixture of saturated and unsaturated fats. They are the source of energy in meals.
The human body is well-designed, with two kinds of fats, both of which are necessary for the body’s optimal functioning and may be supplied from the diet. Inflammation, blood coagulation, and brain development are all controlled by these lipids. It also functions as a storage unit for the body’s excess calories, which are stored in fat cells or adipose tissue, which helps to insulate the body. They are usually a significant energy source. Vitamins A, D, E, and K are absorbed and transported through the bloodstream with the aid of fats.
Types of Fats
Fats are divided into four categories:
Saturated Fat
Bad cholesterol is caused by it. They may be present in a wide range of animal products, including cheese, milk, and meat, so it’s important to keep your consumption in check. Unsaturated fat, on the other hand, is a kind of fat that is used to replace saturated fats in order to reduce cholesterol levels. Trans fatty acids, which are found in vegetable oils, also contribute to cholesterol elevation. The most common cause of heart disease is consuming significant amounts of saturated fat, which causes cholesterol to clog arteries.
Monounsaturated fats
Avocados, Macadamia nuts, Peanuts, Olives, and Olive oil are all good sources of monounsaturated fats. It supports insulin sensitivity, fat storage, weight reduction, and good energy levels in addition to protecting the heart.
Trans Fats
Unsaturated fatty acids or trans fatty acids are terms used to describe trans fats. Beef, lamb, whole milk, cheese, cream, and butter are among the foods that naturally contain these fats. Conjugated linoleic acid is a type of natural trans fatty acid that helps to boost immunity and prevent cancer. Most trans fatty acids, on the other hand, are created when liquid oils are converted to solid fats by manufacturers. To make vegetable shortening, margarine, peanut butter, and other salad dressing items, vegetable oils are hydrogenated. Many processed foods, including baked goods, cookies, crackers, snack foods, deep-fried meals, and other foods produced or fried in partly hydrogenated oils, contain trans fats.
Polyunsaturated Fats
Polyunsaturated fats are beneficial fats present in a variety of plant and animal diets, including vegetable oils, walnuts, flax seeds, salmon, and so on. Omega 3 and Omega 6 fats are included in this group. Omega 3 aids in the reduction of inflammation, the maintenance of healthy hormone levels, and the maintenance of healthy cell membranes. Omega 6 fatty acids are crucial for brain and muscle health.
Omega 6 fatty acids are required in the human diet in tiny amounts. Omega 6 fats are abundant in corn, soybean, safflower, cottonseed, grapeseed, and sunflower oils. Apart from this, omega 6 fatty acids may be present in most baked products such as bread and bakery treats, as well as packaged meals such as cookies, crackers, chips, and french fries, all of which are unstable.
Essential Fatty Acids
Apart from the three essential fatty acids Linoleic, Linolenic, and Arachidonic acids, our bodies are capable of generating most fatty acids. The diet must provide these important fatty acids. Poor development, skin irritation, and other deficiency signs have been observed in newborns fed formula lacking these critical elements.
The Caloric Value of Fats
Carbohydrates and proteins have less than half the calories per gram as fat. A gram of fat has around 9 calories, while a gram of carbohydrate or protein contains approximately 4 calories. To put it another way, for the same number of calories, you could consume twice as many carbs or proteins as fat.
The exact caloric value of fat, protein, and carbohydrate is 9.45, 5.65 and 4.1 Kcal/g respectively.