Another claim you'll hear on anti-gluten websites is that eliminating the protein from your diet will make you feel less sluggish and increase your vim and vigor. This is supposedly because your body will be expending less energy to digest gluten.
However, no studies have found that the gluten-free diet leads to more energy [source: UW Health]. It is true that some people seem to experience such a boost, if their regimen includes cutting back on foods that are high in sugar, fat and calories and consuming more fruit and vegetables. According to the University of Wisconsin-Madison's School of Medicine and Public Health, if someone starts eating a healthy, well-balanced diet, he or she may feel that they have more energy, whether or not that person is eating gluten.