Roots and Tubers — The Carbohydrate Medicine

Somewhere in the last 30 years, carbohydrates became the villain of the nutrition world.

What got lost in that narrative: your ancestors were eating carbohydrates every single day and thriving on them. The difference was not the carbohydrate. It was the type. Refined white flour and white sugar cause metabolic dysfunction. African yam and cassava and plantain do something completely different in your body.

African Yam

True African yam (genus Dioscorea) has been cultivated in West Africa for at least 11,000 years. It is not related to the American sweet potato.

• Glycemic index: approximately 54 (medium), significantly lower than white potato (78)
• Complex carbohydrates that digest slowly, providing sustained energy
• Potassium: 816mg per cup cooked
• Diosgenin: A naturally occurring plant steroid studied for hormonal balance properties.

Cassava

Native to South America, cassava traveled to West Africa in the 16th century and became integrated into the food systems of multiple West African cultures.

• Resistant starch content: feeds beneficial gut bacteria (Bifidobacterium and Lactobacillus).
• Vitamin C: 20mg per cup cooked
• Gluten-free flour alternative

Important: Raw cassava contains cyanogenic glucosides. Always cook thoroughly.

Plantain

Native to Southeast Asia, plantains spread across tropical Africa, the Caribbean, and Central America. They change character completely at different stages of ripeness:

• Green plantain: High resistant starch, low sugar, low glycemic.
• Yellow plantain: Balanced between starch and sugar. Moderate glycemic.
• Black/ripe plantain: Starch has fully converted to sugar. Higher glycemic, intensely sweet.