NORTH AMERICA

Industrial Food and the Metabolic Turning Point

A Different Kind of Origin Story

In North America, the metabolic crisis did not arrive from outside—it was engineered from within.

Over the past century, food production shifted from local agriculture to industrial processing. This transformation introduced a new dietary pattern characterized by refined carbohydrates, added sugars, and highly processed foods. The result is a continent-wide rise in obesity, type 2 diabetes, and fatty liver disease.

Unlike the Pacific, where the transition was abrupt, North America represents a gradual but deeply entrenched shift—one that now influences the rest of the world.

Then vs Now

Traditional Patterns (Pre-Industrial)

• Whole foods (meat, fish, legumes, grains)
• Seasonal fruits
• Minimal added sugars

Modern Industrial Diet

• Ultra-processed foods
• High intake of sugar-sweetened beverages
• Widespread use of high-fructose sweeteners

This transition accelerated in the late 20th century with the rise of industrial food systems.

The Fructose Inflection

A key moment in this transition was the widespread adoption of high-fructose corn syrup following the 1973 US Farm Bill, which incentivized corn production and reshaped the food supply.

This led to:

• Increased availability of inexpensive sweeteners
• Expansion of processed food manufacturing
• Global export of the industrial diet model

Core Mechanism

At the physiological level, the pattern is consistent:

• Fructose uptake via GLUT5
• Hepatic metabolism via Ketohexokinase

Result:

• Hepatic fat accumulation
• Insulin resistance
• Metabolic dysfunction–associated steatotic liver disease

Disease Pattern

• High prevalence of Type 2 diabetes
• Widespread obesity
• Cardiovascular disease burden
• Increasing MASLD recognition

Explore Full Atlas of the Global Metabolic Crisis