If you typically eat breakfast, you won’t want to skip it on the days you hit the weight room. A study recently published in the Journal of Strength and Conditioning Research explains why.
On separate occasions, 16 habitual breakfast eaters with weight training experience performed 4 bench press and back squat sets to failure using 90% of their one rep max. One workout took place 2 hours after eating a breakfast providing 1.5 grams of carbohydrates per kg of body weight, the other after drinking just water.
Subjects were able to complete an average of 10 more squat reps and 2 more bench press reps when they ate a carbohydrate-rich breakfast compared to drinking water. Eating breakfast before training also reduced feelings of hunger and the desire to eat after training.