One of the very first things you'll start noticing is that GW501516 boosts your stamina. It's going to increase a lot and you will be able to push yourself to the limit. It really shines during cardio sessions, it will be a lot easier to complete your workouts. This effect usually lasts throughout the entire cycle.
With the increased stamina and performance, you will be burning through a lot more calories. It's also known for boosting metabolism. Cardarine can help use your stored fat for energy, speeding up the fat loss progress. This is why a lot of users will add it to a cutting cycle.
Whilst in a caloric deficit, you may be at risk of losing muscle mass. Cardarine might be able to help preserve muscle mass whilst cutting. When the PPAR delta gets activated it doesn't only melt fat off, it also stimulates the muscle fibres.