I admire the writers of that show for including traditional nutrition that most of the world knows, but that many Americans have forgotten: organ meats (liver, brain, intestines, heart, etc.) contain far more vitamins and essential fatty acids than any other part of the animal. These parts have been critical to human health through millennia, especially to ensure that women have hearty, strong babies. Fruits and vegetables have important nutrients, but they also have a lot of water and sugar. They’re important for things like vitamin C, but we need fat to process fat-soluble vitamins like A, D and K. These nutrients are best absorbed from animal foods like dairy, meat and organs.
Dr. Catherine Shanahan’s Deep Nutrition: Why Your Genes Need Traditional Food makes a case for how our body parts are nourished by the correlating body parts of animals. Eating cartilage is good for building cartilage, eating eyes gives you excellent nutrients for healthy eyes, etc. Gram for gram, organs like heart and liver contain more vitamins, folate and magnesium than an equal amount fruits and vegetables. These are the nutrients critical to a healthy body, especially for women considering pregnancy. Fetuses need this stuff, so start eating it now.
[photo by Michael Nagrant and taken from this webpage]