Whether we burn it efficiently or not, the amount of fat that is burned is determined by the energy balance. The more energy we use, the more energy we need. The amount we need has to come from food and body fat reserves. If we eat a lot, we’ll need less from our reserves. If we eat less, we’ll need more from the body’s own stores.
Pushing this to the limit to get to the maximal usage of fat reserves, we would only provide the amount of protein needed to maintain muscle and other active tissues, but nothing more. In this situation, basically all energy needs would be supplied by stored fat reserves and glycogen when needed. This is greatly enhanced by resistance training.
The amount of protein needed is proportional to muscle mass and muscular activity. As a guideline, you can use 1--1.5 grams per kg of lean mass per day in the case of little physical activity, and 2--3 g/kg/d in the case of high muscular activity levels. Excessive protein is not great, but more is almost always better than less.
Fat burning and protein synthesis can be further optimised by intermittent fasting. Extending the time between feedings allows glucose and insulin to drop lower, which increases the rate of fat burning. And by eating fewer but larger amounts of protein in a meal is better because protein synthesis increases in proportion to the amount consumed.
Thyroid function regulates metabolism. Iodine is used in every cell, but in the thyroid, it is concentrated to more than 100 times the average of other tissues. That’s because iodine is the main structural component of thyroid hormones. Iodine supplementation is critical for the reason that most soils are highly depleted. It is water soluble and very safe to supplement with.
G. Belanger, PhD — Kalibra Co-Founder and CSO