Raw Rev Glo Vegan Gluten-Free Protein Bars These Raw Rev Glo Vegan Gluten-Free Protein Bars ($21 for 12) taste like candy, but pack a whopping 11 grams of protein and 13 grams of fibre, so they'll keep you full and focussed. Plus, they're easy to snack on mid-lecture. Image Source: amazon.com Raw Rev Glo Vegan Gluten-Free Protein Bars $21 from amazon.com Buy Now