While of course there is nothing wrong with wanting to look and feel your best, there is also an unhealthy undertone to this desire in the form of insecurity.
Lack of self-esteem can lead to Body Dysmorphia (body-image disorder characterized by persistent and intrusive preoccupations with an imagined or slight defect in one's appearance).
First once you've had an honest "look in the mirror" then we can talk about the actual reasons why you might actually be underweight or overweight.
First all the Inner Furnace work needs to be put in place to have optimal circadian rhythm and the mitochondria firing on all cylinders. This includes the light, water, and magnetic properties of your lifestyle.
Then we need to nourish the body...
Daily Intake
Daily Intake
If you have watery fat (that jiggles) you can drink lime or lemon juice with good mineral (spring) water to alkalize your tissues and neutralize volatile substances.
Raw fats in moderation will give your body what it needs to strip away old useless fat bounded with toxins.