Nutrition Timeline

The timeline below highlights how fragile and ever-changing science can be. What was once widely accepted may no longer hold true. Even long-standing ideas—like Hippocrates’ belief that “food is medicine”—are being reconsidered in light of new research. Today, emerging science suggests that factors like light exposure may influence metabolism even before food enters the body, reshaping how we think about health and nutrition.

10,000 BC - AGRICULTURAL REVOLUTION BEGINS
Humans began transitioning from hunter-gatherer lifestyles to agriculture, cultivating crops and domesticating animals. This marked a major shift in diet, food availability, and the development of early civilizations.

400 BC – FOOD AS MEDICINE (HIPPOCRATES)
Hippocrates, often called the “Father of Medicine,” emphasized the therapeutic role of diet, advocating that food could be used to support health and treat disease.

1747 – FIRST CONTROLLED CLINICAL TRIAL
Scottish naval surgeon James Lind conducted one of the first controlled clinical trials, demonstrating that citrus fruits could prevent and cure scurvy among sailors.

1770 – FOUNDATIONS OF NUTRITION SCIENCE
French chemist Antoine Lavoisier, often called the “Father of Nutrition,” discovered that the body converts food and oxygen into energy, helping establish the science of metabolism.

1879 — SACCHARIN INVENTED
Saccharin, the first artificial zero-calorie sweetener, was accidentally discovered by Russian chemist Constantin Fahlberg while working with coal tar derivatives. After spilling a compound on his hands, he noticed an unexpectedly sweet taste, leading to the identification of saccharin.

1887 - CALORIE COUNTING WAS INVENTED
In 1887 Wilbur Otin Atwater first defined the concept of food calories in a Century magazine article and established food as mechanical energy. Atwater, the son of a Methodist minister, preached a strict message of thrift, promoting calorie counting as a disciplined, practical way to manage food and avoid waste—even though his own appearance suggested a hearty appetite.

1894 - FEDERAL FUNDING FOR NUTRITION RESEARCH (USDA)
The USDA’s Agricultural Research Service received its first federal funding to study human nutrition, marking an early commitment to scientific research in the United States.

1912 - TERM “VITAMINS” COINED (CASIMIR FUNK)
Polish biochemist Casimir Funk introduced the term “vitamins,” derived from “vital amines,” to describe essential nutrients needed to prevent deficiency diseases.

1930 — SUPERMARKETS POPULARIZED
The rise of supermarkets accelerated in the 1930s, highlighted by the opening of the first King Kullen in Queens, New York, on August 4, 1930. Founded by Michael J. Cullen, this model transformed food shopping by introducing large-scale, self-service stores offering a wide variety of goods at lower prices.

1941 - FIRST RECOMMENDED DIETARY ALLOWANCES (RDAs)
The National Academies established the first Recommended Dietary Allowances, providing science-based guidelines for daily nutrient intake.

1957 — HIGH FRUCTOSE CORN SYRUP DEVELOPED
Biochemists discovered the enzyme glucose isomerase, which converts glucose in cornstarch into fructose, creating high fructose corn syrup (HFCS). Introduced commercially in the early 1970s, it became widely used in the 1980s as a lower-cost alternative to cane sugar.

1963 — WEIGHT WATCHERS FOUNDED
Weight Watchers was officially incorporated by Jean Nidetch, a homemaker from Queens, New York. The program began earlier in September 1961, when she started hosting small support group meetings for friends in her home, focusing on accountability and shared weight-loss goals.

1972 — THE ATKINS DIET INTRODUCED
Dr. Robert Atkins published Dr. Atkins' Diet Revolution, establishing the foundation for a high-protein, low-carbohydrate approach to weight loss and metabolic health.

1974 — MONSANTO INTRODUCES GLYPHOSATE (ROUNDUP)
Monsanto patented glyphosate and introduced it commercially as the herbicide Roundup. It became one of the most widely used weed-control products in agriculture, later drawing scientific and public attention for its potential health and environmental impacts.

1975 — ORIGINS OF THE PALEO DIET
Gastroenterologist Dr. Walter Voegtlin published The Stone Age Diet, laying the foundation for what would later become the Paleolithic (Paleo) diet approach.

1980 — FIRST DIETARY GUIDELINES FOR AMERICANS PUBLISHED
The USDA and HHS released the first edition of the Dietary Guidelines for Americans, providing science-based nutrition advice to promote public health.

1981 – THE GLYCEMIC INDEX WAS DISCOVERED
The glycemic index (GI) was developed by Dr. David J. Jenkins and his research team at the University of Toronto. It classifies carbohydrate-containing foods based on how quickly they raise blood glucose levels, with the goal of improving blood sugar control, particularly for people with diabetes.

1990 - NUTRITION LABELING AND EDUCATION ACT PASSED
Congress passed legislation standardizing the Nutrition Facts panel on packaged foods, improving transparency and consumer awareness.

1992 - FOOD GUIDE PYRAMID INTRODUCED
The USDA introduced the Food Guide Pyramid as a visual tool to communicate recommended daily servings from each food group.

1995 — THE ZONE DIET BOOK PUBLISHED
Biochemist Dr. Barry Sears published The Zone: A Dietary Road Map to Lose Weight Permanently, a New York Times #1 bestseller that introduced the concept of balancing macronutrients in a 40% carbohydrate, 30% protein, and 30% fat ratio to help manage diet-related inflammation.

1999 — SPLENDA (SUCRALOSE) INTRODUCED
Sucralose, marketed as Splenda, was introduced as an artificial sweetener created by modifying a sugar molecule. In this process, three hydrogen‑oxygen groups are replaced with chlorine atoms, preventing the body from metabolizing it for energy.

2002 — POPULARIZATION OF THE PALEO DIET
Dr. Loren Cordain published The Paleo Diet, the first widely influential book to popularize the modern Paleo diet movement.

2011 - MYPLATE REPLACES FOOD PYRAMID
The USDA replaced the pyramid with MyPlate, a simpler visual model emphasizing portion balance across food groups.

2013 – DR. JACK KRUSE PUBLISHES EPI-PALEO RX
Dr. Jack Kruse introduced the Epi-Paleo Rx and his Leptin Reset Protocol, focusing on optimizing leptin levels for weight loss. The approach emphasizes structured meal timing, improving sleep habits, and specific dietary strategies to help restore leptin sensitivity.

2016 —ARTIFICIAL LIGHT SHOWN TO INCREASE INSULIN RESISTANCE
Researchers at Northwestern Medicine found that exposure to bright artificial light can increase insulin resistance. Evening exposure, in particular, was shown to raise peak glucose levels compared to dim-light conditions.

2019 —ARTIFICIAL LIGHT AT NIGHT LINKED TO TYPE 2 DIABETES
Research highlighted by the National Institutes of Health showed that chronic exposure to artificial light at night (ALAN)—especially blue light—can impair glucose tolerance and increase the long-term risk of developing type 2 diabetes.

2000 — THE GREAT NUTRITION DEBATE
The “Great Nutrition Debate” was held February 24–25, 2000, in Washington, D.C., bringing together leading diet experts to debate popular approaches such as low-carbohydrate and low-fat diets. Notable participants included Dr. Barry Sears, Dr. Robert Atkins, and Dr. Dean Ornish, highlighting the divide in mainstream nutrition thinking at the time.

2024 — RED LIGHT SHOWN TO LOWER BLOOD SUGAR
Researchers from City, University of London and UCL found that exposing the skin to 670 nm red light for 15 minutes can lower blood sugar levels. The study, published in the Journal of Biophotonics, suggests this wavelength enhances mitochondrial function, helping the body use more glucose and reduce post-meal spikes.

2026 — INDOOR LIVING LINKED TO METABOLIC DYSFUNCTION
Research, including studies from the German Diabetes Center, suggests that chronic lack of natural daylight exposure contributes to metabolic dysfunction. Regular daylight exposure may help support healthier glucose regulation.

2026 — RFK JR. INTRODUCES “UPSIDE-DOWN” FOOD PYRAMID
Health and Human Services Secretary Robert F. Kennedy Jr. unveiled updated Dietary Guidelines for Americans, reintroducing a food pyramid with an inverted structure. The new model prioritizes protein, dairy, healthy fats, fruits, and vegetables, while placing whole grains in a smaller, lower tier and emphasizing a reduction in highly processed foods.