I have my number, what about protein, carbs and fats?
Don't base these amounts on percentages, your body has no idea of what percentages it really wants or needs, so just make sure the end totals match the requirements for you. And as long as you do that, they'll work, it really is that simple
Protein
This is always going to be a controversial issue, with many papers leading to different findings about optimum amounts. But going back to popular belief and the general consensus, aim for the 1 to 1.5g per lb of bodyweight.
Ideally this should be per lb of lean body weight, but if you don't know this then it's not going to be a huge problem for doing total weight. However if you've used the Katch-McArdle method above you should know your LBM
Carbs
Carbs always get a bad rep, they're the first point of blame when people are dieting or putting on too much weight. But eating carbs, and the right carbs can be beneficial to your goals, both gaining and losing weight
Carbs give you the energy to have intense workouts or do high amounts of exercise, they're needed for your own sanity too (trust me on this one ). When I was dieting for my contest, I lost 3 stone while still eating close to 300g of carbs, but it was the right kind of carbs. Aim for wholegrain foods (pastas/rice/bread), oats and other stuff low on the glycemic index (GI).
The thing to remember with carbs is they are split into two categories at a basic level, Complex and Simple Carbohydrates. Complex carbs such as the ones I mentioned earlier are digested at a much slower rate, keeping you fuller for longer and giving a much more stable and steady flow of energy. Simple carbs, while deliver the same amount of energy per gram, are digested at a much faster pace and deliver an immediate boost in blood sugar and energy, but it wears off quickly. Meaning you feel hungrier sooner and your energy falls quicker.
If you consider yourself highly active, and again be honest, aim for 3-4g of carbs per pound of lean bodyweight, moderately active aim for 2-3g per pound of lean weight, and low activity, aim for 1.5-2g
Fats
Again, these get a bad rep, people assume because of the name that fats make you fat. But only the wrong kinds (trans fats are the worst kind)
Fats are crucial to regulating hormone levels, as well as aiding the body to actually burn fat. So these are a must in the diet. Saturated fats are important too, but again these are something that must be had in moderation
The types of fats you need to know about are Saturated Fats, Monounsaturated Fats, Polyunsaturated Fats and Trans Fatty Acids.
Saturated Fats
Usually found in food from animals (meat, butter, cream etc), they yield more energy than unsaturated fats however are linked to higher cholesterol levels and heart diseases. However, please don't shy away from Saturated fats, as a certain amount is important in your diet.
For men, you should be eating no more than 30g per day of saturated fats, for woman, 20g
Monounsaturated and Polyunsaturated Fats
Found in plants, oils, cereal grains and fish oils. These are the good fats and you should be making up most of your fat intake from these. They are good for a number of reasons, two of these being Omega 3 and Omega 6. The oils and cereal grains provide Omega-6. The body uses the Omega-6 fatty acids to make hormone like substances called eicosanoids. These provide a number of functions including muscle contraction/relaxation, blood vessel constriction/relaxation, immune response to injury and infection. They also help to lower LDL cholesterol, the bad kind.
Omega-3 fatty acids from fish oils help with the brains cerebral cortex development and retinal development for vision. There are also a number of health benefits from Omega-3 fatty acids, including a healthier heart which is always a good thing and healthy joints. A number of studies also show Omega-3 fatty acids help with fat burning and minimising the effect of catabolism.
Trans Fatty Acids
Most of the nasty nasty fatty acids are the result of industrial hydrogenation of polyunsaturated fats. These fats are bad because not only do they massively raise the bad cholesterol, LDL, they also reduce the HDL levels of cholesterol too, the good kind. Margarine is a source of trans fats, so be careful if you use margarine.
Typically you want to aim for 0.45-0.8g per pound of total body weight, however if you are of a high bodyfat percentage, you want this to be per LEAN pound of bodyweight. And remember, make sure it's made up of mostly good fats and not bad fats.