Weight gain can be very simple with the right training and nutrition coaching from the right trainer. This is where we come in. At Fusion , we design training protocols to match your needs – muscle and weight gain requires specific volumes and intensity of training with the correct patterns of rest, recovery and eating! FUSION has a very successful track record working with traditionally “hard gainers” and helping them gain weight on the scale and put on lean muscle. That’s because we hire the most experienced and knowledgeable fitness trainers, to ensure that you have the most chance of success.