Many things that make the process of metabolism in the body become slower as age, sex, weight, nutrition and others. But there are other possible causes are rarely known. Here's his explanation, as quoted symptom find:
1. Avoiding caffeine
Caffeine is a stimulant that can increase the body's metabolic rate. According to a study published in the International Journal of Obesity, consumption of caffeine can increase the metabolic rate of 4-5 percent, provided that the correct amount consumed. However, it is important to not eat excessively, because it can have a negative impact on your body.
2. Do not drink milk
A study showed that calcium deficiency has been associated with slowing of the metabolic processes in the body. Research has also shown that consumption of low-fat dairy products or fat-free will reduce the amount of fat absorption from other foods. If possible, you can eat yogurt at breakfast or lunch hour to meet calcium needs.
3. Skipping meals
Skipping meals with the reasons for wanting to slim down, can actually cause the metabolic processes in the body become slower. Why? Because, the body requires a certain amount of calories each day to support the functions of the body. So, if your calorie intake is too low, the body will look for other food sources and usually they take it from muscle tissue.
4. Too much alcohol consumption
According to an article written by Dr. Mauro Di Pasquale on BodyBuilding.com, stated that alcohol can slow your metabolism by up to 73 percent, even a few hours after you finish drinking alcohol. Some research does suggest that drinking one glass of alcohol has some health benefits, but more than that should be avoided.
5. Low intake of vitamin D
Vitamin D has long been known as a vitamin "sunlight" and is very important in helping the absorption of calcium. Spend a few minutes in the sun without sunscreen can give you a good dose of vitamin D, such as get a serving of tuna fish, a glass of milk or cereal. But remember, you should not spend too much time basking in the sun without protection to avoid sunburn and skin cancer.
6. Low muscle mass
Scientific facts mentioned that muscles use more energy than fat. Therefore, someone who has a greater muscle mass, generally tend to have a faster metabolic rate. So, by doing weight training, metabolic rate will also increase. As an added bonus, weight training will also help improve your bone density.
7. Lack of iron
Iron is an essential nutrient required by the body to carry oxygen to the muscles to help burn fat. However, many iron deficiency, especially in women who regularly experience monthly periods (menstruation). This condition can cause people to feel tired, weak besides will also slow down your metabolism. However, iron can be easily found in foods such as meat and green leafy vegetables such as spinach.
8. protein deficiency
In addition to iron, protein also has a vital role to maintain healthy muscles. Protein can increase metabolism by 35 percent. Therefore, make sure that every meal you consume contains some kind of protein.
9. Diabetes Type 2
Although the relationship is not known with certainty, but several studies have shown that a person with type 2 diabetes tend to have a slower metabolic rate than those who did not have type 2 diabetes.