Water is vital for burning calories. If you’re trying to lose weight but you’re not serious with adding water for each meal and snack, you can get dehydrated. This could result to slow weight loss as your metabolism drags. Studies show that adults drink at least 8 glasses of water each day burn more calories than those who drink less. So, don’t forget to drink a glass of water after each meal and snack. This is probably among the simplest daily diet tips to lose weight.