The body is amazingly made; you are amazingly made. God designed all of us in His image, but each body is quite unique. Again, what the ideal body weight is for one person is not the ideal body weight for another...
All foods are composed of just water, proteins, carbohydrates, fats, and trace (tiny) amounts of vitamins and minerals. Proteins, carbohydrates [CHO], and fats are made up of carbon, hydrogen, and oxygen. Proteins add nitrogen to their chemical structures...
The liver is a chemical factory that is capable of turning what you eat into the substances your body needs. If you happen to swallow a trace amount of a chemical that the body does not like, such as a pesticide, then the liver traps it and breaks it down, preventing it from entering your normal bloodstream or damaging your liver...
The body is made of mainly water, and water can fluctuate. If you have been obedient to hunger and fullness, you will lose weight. Therefore, keep food records of hunger and fullness. Do not be surprised if your weight goes up if you are disobedient to the stomach...