Think of adding, not subtracting.
I find it a better approach to focus mental energy on foods that you'd like to add to your diet (hemp, chia, buckwheat, amaranth, kale, smoothies, etc,) than to think about foods you'd like to reduce your consumption of (refined carbohydrate, dairy, fast food, etc). Once I started including more of the good foods, I found I no longer had room in my stomach for the not-so-good ones. This made it easy to cut back. Before I knew it, my palate began to shift and I actually craved the good stuff and had no desire to eat the bad. Of course, from this point, everything got easier.
Brendan Brazier is a former professional Ironman triathlete, a two- time Canadian 50km Ultra Marathon Champion, the creator of an award-winning line of whole food nutritional products called VEGA, and the best-selling author of the Thrive book series. He is also the developer of the acclaimed ZoN Thrive Fitness program and the creator of Thrive Foods Direct national meal delivery service. He also just launched 'Thrive Forward,' an online video series on wellness.
Recognized as the world's foremost authorities on plant-based performance nutrition, Brendan works with NFL, MLB, NHL, UFC, PGA, Tour De France, and Olympic athletes and is a guest lecturer at Cornell University, where he presents an eCornell module entitled "The Plant-Based Diet and Elite Athleticism."