Every time we do something like walking, running, exercising, even respiration or almost everything that requires movement, takes energy from our body. Just like a car that needs gasoline to move around, we too require energy to move about and that is called Food energy. Depending on what and how many we eat is stored into food energy that gives us the power to move. Food energy is expressed in Calorie/Joule, just like any other forms of energy. If we intake many food calories but do less activities, then energy is stored up in your body which then turns into body fats. An average of 1,200-1,500 intakes of calories is the suggested from many health organizations. If you go beyond the average then physical exercise is advisable to burn off the extra calories.
If you were wondering how many calories contain in a gram of fat, the answer would be nine grams. This would have the biggest amount of food calories against protein and carbs (Carbohydrates). From a weight loss perspective, the type of fat you would be in taking is rather irrelevant. As from a healthy perspective, replacing animal fats into vegetable fats or vegetable oils is more advisable. For Protein, there are just four calories or less in each gram. Again, although protein is fundamental for a good healthy life, vegetable protein is much more suitable than animal protein and too much intake of protein may cause health problems in the later part. Carbohydrates are as much as the same for protein, containing just four calories per gram. For loosing weight, an advisable diet would contain low in animal fat foods, diffident quantities of protein and high in strong carbs or about 1,200 calories.
For loosing, gaining or maintaining weight, calorie intake depends on many things including your age, gender, height, weight and exercise habits. Various calorie-calculators are available anywhere in the internet which computes how food calories you consume and how much you need to exercise to achieve your desired goals. For every pound in a body fat, there are about 3500 calories. So if you plan to lose 3 pounds, you will need to burn of 10500 calories, and so on. If you are into a healthy lifestyle or planning to lose weight, then calorie control is essential for achievement. You need only to do simple things to decrease your calorie intake and that is to reduce sugar intake such as eating less of cookies, ice cream, cakes, candy bars etc.
The other you need to reduce is fat intake; lessen your eating in foods like fried foods, junk foods and fast foods. Another way to put off the extra pounds is by eating foods that burn calories. These are called the negative calorie foods, vegetables and fruits such as broccoli, green beans, asparagus, papaya, pineapple etc. these also optimize your health and fitness lifestyle and fastens your metabolism. So if you either want to lose or gain weight, just observe your food consumption and choose the right food for better living and a fit lifestyle.