2. Episode 2

The twins begin their diets with a mix of successes and struggles. The recommended dietary guidelines raise concerns. A renowned chef changes course.

3. Episode 3

The twins adjust to cooking their own meals. With some animal products linked to health problems, innovators turn to plants for sustainable alternatives.

4. Episode 4

The study results are revealed to the twins as they review their weight, gut and brain health, and more. A movement in the food industry gains momentum.