Columnist Dr. Cheryl Christy

Author's note: This column is intended for educational purposes only. It aims to highlight gaps in health knowledge, provide support and empower organizations to guide their members in creating effective health and wellness programs.

The agricultural tipping point of health marks an important juncture when food production methods shifted from supporting human survival to actively undermining public and global health. This first section will look at how the U.S. government's previous agricultural policy became health policy, in part due to the Farm Bill, as well as other strategies that have been quietly shaping our nation's health.

Before the 1900s, and in many rural farming communities around the nation today, food was grown by Indigenous farmers, supporting local economies and their inhabitants. In the mid-1900s, a new model of farming took place: industrial agriculture. This new way of farming fundamentally changed not only how food is grown and processed but also how it is accessed. A primary characteristic of industrial agriculture is the prioritization of producing a large volume of a small number of commodity crops — like corn, rice, wheat and soybeans — using synthetic fertilizers, chemical pesticides and large-scale monocropping. Over time, this system became dominant because of its promises to increase food production, simplify farming and make it easier to produce shelf-stable, calorie-dense foods for a growing population.

Now, instead of growing a diverse array of fruits and vegetables for the local community, rural farmers have been incentivized, or strong-armed, into growing single crops, not only for the local community but for export and other uses. Many of these crops are funneled into animal feed, fuel production or exported. What reaches us has been processed into inexpensive products known as ultra-processed foods. A key point to understand is that industrial farming practices reduce the nutrients in our food. Healthy soil breaks down organic matter and helps plants absorb nutrients through their roots, which helps grow crops rich in vitamins and minerals that are then passed into the food grown. Studies show that over the past 50-70 years, nutrient density in many fruits and vegetables has declined by between 25% and 50%. This decline is linked to changes in farming practices such as excessive tilling, heavy pesticide and fertilizer use and a lack of living roots and microbial life in the soil. Without roots, bacteria and fungi, soil cannot function as a healthy, living system.

The U.S. health crisis began to accelerate sharply in the late 1970s and 1980s. This decline was driven by a massive shift toward cheap, ultra-processed foods, the introduction of high-fructose corn syrup, larger portion sizes and increasingly sedentary lifestyles tied to modern technology and desk jobs. In addition, ranchers were required to mass-produce meat using growth hormones and antibiotics.

CHANGES AFFECTING HEALTH

• The rise of ultra-processed foods. Food manufacturing shifted toward highly palatable, calorie-dense and nutrient-poor packaged foods that now make up more than half the average American diet.
• Inexpensive sweeteners. Government agricultural policies and corn subsidies led to the widespread use of high-fructose corn syrup, flooding snacks and beverages with cheap sugar that bypassed natural fullness cues.
• Aggressive marketing and portions. Fast-food culture expanded rapidly, and restaurant and package portion sizes grew significantly, normalizing chronic overeating.
• The depletion of soil rich in vitamins and minerals.

GOVERNMENT OVERREACH

In the 1970s, sweeping shifts in U.S. agricultural policy dismantled traditional supply controls. The government triggered a massive oversupply of cheap corn and soy, paving the way for ultra-processed foods, high-fructose corn syrup and cheap animal feed. Farmers were urged to maximize planting. Small family farms were pressured to consolidate into massive industrial operations reliant on high-yield commodity crops. During this time, dietary guidelines and nutritional advice pushed low-fat, high-carbohydrate diets, driving consumers away from traditional fats and toward processed, sugar-laden substitutes. This structural shift in the American diet was characterized by an unprecedented spike in obesity, Type 2 diabetes and cardiovascular disease. By altering the cost structure of the food supply, these policies systematically made calorie-dense, nutrient-poor foods the cheapest and most accessible options. The rapid introduction of cheap, mass-produced sugars caused metabolic dysfunction, ushering in the era of chronic disease.

Because the U.S. Department of Agriculture heavily subsidized commodity crops (corn, soy and wheat) rather than specialty crops (fruits and vegetables), the inflation-adjusted price of fresh produce rose by 40% over subsequent decades, while the price of carbonated soft drinks and processed foods sank by 24%. Anyone who does the food shopping understands that fresh fruits and vegetables cost more to buy than sugared cereals, chips and processed foods. This created food deserts, especially in lower-income communities, where residents were left with cheap, shelf-stable, subsidized processed foods sold in convenience stores.

As the government pushed low-fat guidelines in the late 1970s, food manufacturers met those standards by removing fat from products and replacing it with massive quantities of subsidized corn starch, sugars and HFCS to maintain flavor, but lacking healthy ingredients. Obesity and diabetes continued to surge, especially among our youth.

Next week we will look at the Farm Bill and how it impacts health and chronic disease development, and how all this has led to a measurable health crisis today.

Dr. Cheryl Christy is a Baldwin County resident and registered nurse with nearly 30 years of experience. She holds master's degrees in nursing education and nursing practice and a doctorate in nursing practice. She is a member of Sigma Theta Tau, Phi Pi Chapter, a certified lay counselor and the author of "Voices for Healthcare," a health care blog.

Read her previous column titled "Health and the normalization of deviance" on www.GulfCoastMedia.com. Her blog can be found at https://substack.com/@dnprn.