1. What we get with food calories?
Food nutrients, vitamins, minerals and water. The main nutrients in foods are fats, carbohydrates and proteins. Hydrates, fats and proteins provide the body with energy that is measured as calories. Vitamins, minerals and water do not contribute calories.

Fats provide 9 Kcal per gram. Carbohydrates provide 4 Kcal per gram. Proteins provide 4 Kcal per gram.  Fats and carbohydrates are mainly used as an energy source. The proteins serve mainly as plastic material for growth and tissue repair.

In real life we find not only a meal consisting of fat (except oils), carbohydrate or protein food but have a mixed. Thus, foods such as beef traditionally is considered a food protein but has 20.70 grams of protein, 5.40 grams of fat and trace amounts of carbohydrates.

Or the bread is considered the example of carbohydrate per 100 grams is 52 grams carbohydrates 8 grams of protein and 1.6 grams of fat. Thus each of the nutrients from food are entered together with each meal and can not be separated. To see what proportion of each nutrient is every food there calls Tables of Food Composition reflecting the study of the components of each particular food. There are several tables with variations mainly by the geographical origin of the food samples.

2. What we spend calories?
The body spends calories to maintain basal metabolism in the process of digestion and metabolism of the very food we eat and in daily physical activity.

2.1. For maintenance of basal metabolism
Basal metabolism is the minimum amount that the agency spends on physiological functions essential for the preservation of life, ie the amount of energy expended on bedrest and even invested in the physiological functions of the different systems body such as respiratory, cardiovascular, nervous, thermoregulatory, endocrine, etc..

Broadly, the basal metabolism of men consuming 1 calorie per kilo of weight and time. And the woman uses 0.9 calories per kilo of weight and time.

Thus, if a man weighs 80 kg, you need a day to maintain basal metabolism 1 x 80 x 24 = 1920 calories and a 70 kg woman will need 0.9 x 70 x 24 = 1512 calories.

2.2. With the process of digestion and metabolism
For a food becomes part of the composition of our body requires a process that begins with chewing and passes through the transformation of it in its various nutrients that the body can use.

These processes require an energy expenditure representing 10% of the energy content of food eaten.

So if we consume a total of 1500 calories, 150 calories will be expended on the incorporation of the nutrients as such for use by the body in its various functions.

2.3. Physical activity
Besides the basal metabolism, daily activity and exercise is a waste of energy for the body.

Energy expenditure for various activities and exercises are standardized by the minute and depends on weight and sex, so women have to be deducted by 10% to the figure obtained.

Read calculate an example: if a man of about 80 kg weight for 1 hour riding a bicycle will spend:
80 x 60 x 0.100 = 480 cal.

If a woman of 70 kg makes this same activity will spend:
70 x 60 x 0.100 = 420, minus 10% (42) by a woman bringing it up to 378 calories burned.

Possibility Related Posts:

• Meet the caffeine content of some foods
  Caffeine is a matter of opinions, even controversial, but the reality is that everything leads us to believe that its consumption may have beneficial ...
• Melon with ham, a healthy combination as an appetizer
  Our co-Straight to the palate have delighted us with a simple recipe, this is a ham and melon skewers that are a healthy mix as an aperitif, to cool o...
• Do not forget that calcium not only in dairy products
  After watching closely on television advertising, which promotes a product enriched in calcium, I feel the need to clarify that calcium is not only in...

The fat of the ham assists in the absorption of carotenoids and vitamin A that has the melon, while vitamin C in fruit makes better use of iron ham. Furthermore, the sweetness of the melon is perfectly highlighted with the salty and savory ham. Thus, an appetizer of ham with melon is a healthy combination of food without many calories (90 kcal per 2 skewers) and most importantly with good nutrients for the body.

In addition to vitamin C, carotene, vitamin A, fiber and water melon, this snack can find iron, good quality protein, healthy fats mostly monounsaturated, sodium, potassium and phosphorus derived from the ham.

Possibility Related Posts:

• Do not forget that calcium not only in dairy products
  After watching closely on television advertising, which promotes a product enriched in calcium, I feel the need to clarify that calcium is not only in...
• How to burn more calories on the treadmill
  Although the weather encourages us to run outside, often lack of time, inconvenience or excessive heat lead us to choose the gym to train us running, ...
• The mashed potatoes, no butter better
  Healthier cooking is not necessary to implement new recipes or produce large changes in the production of meals, but some simple tips can help reduce ...
• When I eat what I like, how less?
  When we try to take care of our diets often suppress the desire to eat what we want because maybe more, is very heat or have a lot of sugar. However, ...
• Tips for parents of obese children
  Parents have great influence on the health of their children, not only to prevent but also to reverse and treat disease, so in the case of children an...