Metabolism and weight gain or loss is often linked together. While there is likely too much emphasis put on metabolism by those looking to lose weight, it is a factor that should be taken into account when creating a diet plan. It is important to first understand exactly what metabolism is and how the metabolism rate can change.
Metabolism
Metabolism in itself is simply the body breaking down food and drinks to produce energy. Doing this and other basic functions such as breathing, repairing cells and pumping blood all require energy. The rate in which the body uses energy for these functions is known as the basal metabolic rate (BMR). These functions burn about 60 to 75 percent of the calories the average person uses in a day.
Determiners of metabolism
The major determiners of the BMR are body size, sex and age. The main reason men, younger people and those with larger bodies burn more calories naturally is because they all tend to have more muscle mass. With everything else being equal, one kilogram of muscle burns about 73 more calories a day than a kilogram of fat does.
Exercise and metabolism
While one cannot change their age or sex, they can influence the rate in which their body burns energy by converting fat to muscle mass through exercise. The higher rate in which muscles consume energy combines with the calories burned in workouts to make exercise critical to any weight loss program.
Through cardiovascular activity that includes 30 minutes or more at an increased heart rate, people get a metabolism boost that can last for hours after the exercise has been completed. Furthermore, the body must expend more energy to repair itself after all exercise.
Eating and metabolism
The frequency, quantity and what one eats also influence metabolism. For those looking to increase their metabolism rate, skipping meals, particularly breakfast, is a bad move. When someone misses a meal, the brain signals the body to slow down and reduce the rate it burns calories. It also makes one feel lethargic and reduces performance.
Instead, one should eat more frequent but smaller meals throughout the day (but not too late in the evening). This keeps the body burning calories at a normal rate, increases energy levels, stimulates digestion and has been shown to suppress appetite overall.
As with any dieting plan, sugars and processed foods should be avoided. They make it difficult for the body to maintain a steady blood sugar level and this in turn leads to more energy being stored as fat. Furthermore, these foods tend to be low in nutritional value and quick to digest. The best foods to eat include lean proteins such as in egg whites, lean turkey and white fish. Spicy foods have also been shown to provide a temporary metabolism boost.
Since the metabolism process needs water to work effectively, drinking lots of water, especially cold water that the body must burn energy to warm up, also helps. Green tea is another good liquid source and has other added health benefits.
Sleep and stress
Lack of sleep and too much stress also have negative effects on metabolism. One should sleep 7-8 hours a night and take steps to avoid stress.
Some people put too much emphasis on metabolism and often use it as an excuse for weight gain. In most cases, weight gain can be attributed primarily to eating too much and exercising too little. However, all these steps to boost metabolism do have at least some effect and other health benefits. Understanding metabolism thus can boost one’s overall health if they are dieting or not.