If I could only eat one food for the rest of my life, which would keep me healthiest?

There is no single food that can keep you healthy for the rest of your life. Human bodies require a complex balance of macronutrients (proteins, carbohydrates, and fats) and a wide variety of micronutrients (vitamins and minerals) that no individual plant or animal product provides on its own.

If you were to rely on just one food, you would quickly develop severe deficiencies. For example:

• Potatoes are often cited for their relatively high nutrient profile, but they lack essential fats and sufficient high-quality protein to maintain muscle and organ health over time.
• Eggs are nutrient-dense and contain all essential amino acids, but they lack fiber and vitamin C, which are critical for digestion and immune function.
• Leafy greens provide many vitamins, but they do not contain nearly enough calories or fats to sustain your energy levels.

Choosing only one food would eventually lead to malnutrition, organ failure, or serious illness. The healthiest way to live is to eat a diverse, "rainbow" diet that includes fruits, vegetables, whole grains, healthy proteins, and fats. This variety ensures your body gets the broad spectrum of nutrients it needs to repair itself and function correctly every day.