Although healthy fats are an important part of our overall diet, eating high fat meals or snacks like nuts before exercising can compromise your workout. This is because fat is a nutrient which slows digestion, and the more fat in a meal or snack, the longer it takes for that meal or snack to be digested. Pre-training, the purpose of nutrition is to prime the body, and for that to happen the food needs to be full digested and ready to use as fuel. If you do want to include fat in your pre-workout, make sure you allow 1½-2 hours before exercising.
