A. If you are a meat lover who may suddenly find it difficult to switch to a plant-based diet, you can start a green diet at a slow pace. First, you can reduce the amount of meat and other animal products you eat daily and switch it up with more and more plant-based products. Then, with each passing day, add more and more vegetables, fruits, whole grains and other greens to your eating plan, and with enough time, you can take up a complete green diet.