I got some confused emails as a result of my last article so I figured I should try and clear some things up a bit. Specifically, I got a question about how to “clean bulk”…
Lets talk about energy needs for building lean muscle mass. Besides protein, you also need an excess of energy to produce muscle. Read that again please. An excess of energy.
Many people seem to think all you need is protein. Because muscle is made up of protein right? Eat protein and your muscles will be happy and grow “hyuuge” right? Well, that is sort of half-right. What is missing from that picture is that muscle doesn’t consist entirely of protein. There is a bunch of other stuff you need to build up muscle tissue.
Imagine that you are building a house and all you have is a pile of bricks. But you don’t have any grouting (Swedish: murbruk). So you can’t really build the house with what you have, you are missing some vital building material. See where I’m getting?
But, ok, lets say you do have the absolute minimum of grouting (the vitamins, minerals, fat and whatever else is needed to build muscle) then you are set, right? Well, lets look at our building. There’s the pile of bricks and there’s your grout. But there is still one thing missing, because the house won’t just magically build itself up. You need a construction worker to come in and lay the bricks and the grouting in the shape of a building! It’s a silly example, but what I want you to realize is the keyword here, which is “work”, which is equivalent to “energy”. So looking at what happens in your body, besides the ingredients, the process that builds up muscle also requires an excess of energy. There’s that word again. Excess. So in order to grow muscle you need an excess of calories/energy.
But this is where you might think; wait a minute, don’t we have excess energy stored in the form of fat in our bodies already? Doesn’t the body use that stored energy as a fuel source for building muscle? So we can use the fat in our bodies as fuel for muscle growth and loose fat simultaneously! Right?
Well, it might work to some extent if you are an obese beginner, but for the rest of us advanced beginners or intermediate trainees, I’m sorry to disappoint you, but that is not how it works. When you restrict your calories, the hormonal state in your body will be very far from ideal for building muscle.
The hormonal state in a leaner individual is also a lot different from that in an individual with a higher amount of body fat. So while you may be able to build muscle in a deficit when you are still an overweight beginner, the leaner you become the harder it becomes as your hormones will signal the body to become more restrictive with what the stored energy (fat) is used for.
So this brings us to the interesting question, how much excess energy do you need for optimal muscle growth? Unfortunately it is a very difficult question to answer. Eat more and you’ll potentially gain more muscle but also very likely store more fat, eat less and you will make smaller gains of both muscle and fat. What is actually interesting is what the ratio might be. According to Lyle McDonald, for the average Joe, and the vast majority of the population, the ratio is roughly 1:1 of muscle to fat. If you are a genetic freak or assisted by drugs (steroids) you might have a better muscle to fat ratio, but if you don’t know, you can safely assume that you’ll gain one kg of fat for every kg of muscle.
The second question then is, how much muscle can you expect to gain in a given time period? And that is also a difficult question to answer. It depends on how advanced you are (as in how close you are to your genetic potential), how old you are, whether or not you are assisted by drugs, your genetics and gender and a lot of different things I’m not going to get my head wrapped around.
But let us not over complicate things, a surplus of about 500kcal above your maintenance (the amount of calories you need to eat in order to stay the same weight given your average amount of activity) is a good starting point for natural beginners and intermediate trainees. It’s a good starting point because 500kcal is a large enough chunk of energy so that after a couple of weeks you should see a result on your scale. 500kcal per day equates to roughly half a kg of weight gain per week, which should be about as accurate as you can measure your weight with a typical bathroom scale. Measuring your weight with a higher precision than that is pointless because the variation is already at least twice that as discussed in my previous article.
Do note that the above applies to beginners, it is not realistic to assume that you will keep adding 1kg of muscle every month for an eternity. 1kg might not sound like much, but keep doing it for a year and it equates to potentially 12kg of muscle. That is a lot of muscle. As you get stronger and bigger, the progress tapers down and an advanced lifter who is close to their genetic potential would be happy to add 1kg of muscle per year, if even that.
Women should expect about half the gains in the same amount of time so 0.5kg of muscle per month (a target of 1kg of total weight gain per month) is probably a good starting point. Again, that is for beginners.
Also, I should mention since it also came up, that there is no way to “over-consume” protein. Some people seem to believe that if you consume more than say 30g of protein in a meal, the excess protein is “lost” somehow. This is a myth which is likely constructed by the supplement industry in order to promote their “recommended portion sizes”. Does it make sense from an evolutionary perspective for our bodies to reject nutrition when we have passed some arbitrary threshold? I don’t think so.