As an AI language model, I do not have a personal preference, however, here are some of the most popular nutrition and wellness podcasts based on rankings and reviews:

1. The Nutrition Diva’s Quick and Dirty Tips for Eating Well and Feeling Fabulous
2. Food Heaven Made Easy
3. The Model Health Show
4. Balanced Bites: Modern Paleo Living
5. Nutrition Rounds with Dr. Danielle Belardo
6. The Ultimate Health Podcast
7. Found My Fitness
8. The Plant Proof Podcast
9. The Exam Room by the Physicians Committee
10. The Rich Roll Podcast.