Here are 3 lean bulking rules to successfully gain muscle without the extra bodyfat 👇🏼 1. Avoid processed foods: these foods often include unhealthy levels of sugars, sodium and fat. So you might want to skip these if you want to avoid fat gains. 2. Eat enough protein: we all know the importance of protein for building muscle. I recommend eating around 1g of protein per pound of bodyweight everyday. 3. Be in a small calorie surplus: some recommend 10-15% more calories, others 20%.