40/30/30 USA Food Plan Author:John Erickson, 40;30;30 Zone Diet Nutritionist The USA Food Plan is an advanced version of John's 40/30/30 Diet Manual/ The USA Food Plan has updated food choices, greater meal options, and more precise measurements. As the food portions in the 40/30/30 Diet Manual are more generalized, the values listed in the USA Food Plan count the hidden protein calories found in grains, and is more stri... more »ct about the levels of fat. In any case one does not have to be that precise to get results. How it works: Foods are separated into 3 basic categories: Proteins are red, carbohydrates are white and fats are blue. Simply combine one of each to create a balanced meal. Any red white and blue food combination will create balanced meal. If you omit any of the three you will lose in some way. Your psychological or metabolic state will suffer somehow. A poor psychological state is hunger and a muscle loss is an example of a poor metabolism. The USA Food Plan offers you a wide range of benefits, without deprivation. The scientific premise behind the USA Food Plan is based on the cutting edge science of hormonal eating: a strategic nutritional program that satisfies hunger, sheds excess body fat, strengthens muscle, and increases mental alertness. The USA Food Plan places primary emphasis on the way food affects the hormonal chemistry, or the internal juice of your body. Protein, carbohydrates and fat have their own distinct way of influencing your metabolism. By obtaining the proper balance of protein, carbohydrates and fat at each meal, the USA Food Plan will shift your body into the fat burning mode and you will feel your absolute best.« less