As a part of the HCG weight loss Bio app, your first three days are "loading days". You store up on fats and carbohydrates to ensure your body doesn't crash. I started yesterday so this is day two. I feel so sick from eating so much, but if you don't load properly the whole diet will fail. I've decided to do measurements once a month but weigh every day to keep track of my progress. As you can see I gained 4 pounds from eating yesterday so today may be a light load.