HOW MANY MEALS TO EAT PER DAY AND WHY IT'S IMPORTANT.

Eating more frequent, smaller meals will help the body process the foods better. It will also boost the metabolism and energy expenditure. It helps to regulate blood sugar, which influences insulin production, and reduces the chances of the calories being shuffled to fat stores.
A dieter who is normally eating 3000 calories over three meals is taking in 1000 calories per sitting. That is a lot for the body to process and use at one time. If the energy expenditure at the time of processing only reaches 500 calories the excess 500 calories of energy will be stored in fat stores for future use. Breaking those 3000 calories into six smaller meals will result in a 500 calorie meal instead. The body will have an easier time processing this amount of food.
Whenever we eat we burn calories. Energy is needed to prepare, chew, swallow, digest, and process the food. How many calories depends on a number of variables, including type of food, preparation method, food combinations, etc. Those variables aside, it is easy to see that eating more frequently will result in more of the calories being used to simply digest the food. If, hypothetically, 120 calories were used in the process of eating and digesting the food, then the three meal per day person would have a total calorie balance after consumption of 2640 (3000 calories total - (120 calories per meal used x 3 meals)= 3000-360.) The six meal per day dieter would have a total calorie balance after consumption of 2280 (3000 calories total - (120 calories per meal used x 6 meals)= 3000-720.) That is a difference of 360 calories a day just by eating more frequently.
Blood sugar control is another essential factor, as well. By eating every two to three hours the body will have a constant supply of energy and will not need to release stored glucose, causing a spike in insulin. Insulin shuffles excess blood glucose into the fat stores after energy needs are met.
Eat four to six small meals per day, spaced out throughout the day, to keep energy levels up, boost metabolism, regulate blood sugar and enhance weight loss.