Related Experiment Video
Updated: Jun 22, 2026

04:48
Control of Eating Behavior Using a Novel Feedback System
Published on: May 8, 2018
Endogenous food quality and bodyweight trend
Liqun Liu1, Andrew J Rettenmaier, Thomas R Saving
1Private Enterprise Research Center, Texas A&M University, College Station, TX, USA.
Summary
Economic growth and technological advances may slow future bodyweight increases. Individuals are likely to prioritize food quality over quantity as income rises, potentially reversing current trends.
Area of Science:
- Behavioral economics
- Health economics
- Nutritional science
Background:
- Rising global bodyweight is a significant public health concern.
- Previous economic models linked bodyweight to income and food prices.
- Individual choices regarding food intake and quality are key factors.
Purpose of the Study:
- To analyze bodyweight as an individual choice influenced by income, food prices, and food quality.
- To investigate the potential for self-limiting trends in bodyweight growth.
- To explore the impact of future economic and technological changes on bodyweight.
Main Methods:
- Economic modeling of individual choices.
- Analysis of income elasticity of demand for food quantity and quality.
- Simulation of technological innovation effects on relative food prices.
Main Results:
- Future income growth is increasingly allocated to improving food quality rather than caloric intake.
- Technological innovations favoring lower prices for high-quality food encourage substitution of quality for quantity.
- These shifts suggest a potential slowdown or reversal of the upward bodyweight trend.
Conclusions:
- Bodyweight trends may be self-limiting due to evolving consumer preferences and technological advancements.
- Shifting focus towards food quality offers a pathway to mitigate rising bodyweight.
- Economic and technological policies can influence dietary choices and public health outcomes.
Related Concept Videos
Regulation of Food Intake
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
Nature and Nurture
Many human characteristics, like height, are shaped by both nature—in other words, by our genes—and by nurture, or our environment. For example, chronic stress during childhood inhibits the production of growth hormones and consequently reduces bone growth and height. Scientists estimate that 70-90% of variation in height is due to genetic differences among individuals, and 10-30% of variation in height is due to differences in the environments that individuals experience, such as differences...
Regression Toward the Mean
Regression toward the mean (“RTM”) is a phenomenon in which extremely high or low values—for example, and individual’s blood pressure at a particular moment—appear closer to a group’s average upon remeasuring. Although this statistical peculiarity is the result of random error and chance, it has been problematic across various medical, scientific, financial and psychological applications. In particular, RTM, if not taken into account, can interfere when researchers try to extrapolate results...
Derivatives: Problem Solving
Temperature-Dependent Growth of Brook TroutThe growth of brook trout is closely influenced by water temperature. Experimental data demonstrate how trout weight changes over a 24-day period in response to varying water temperatures. At lower temperatures, such as 15.5 degrees Celsius, brook trout show significant weight gain. However, as the temperature increases, the amount of weight gained steadily decreases. At the highest temperature measured, 24.4 degrees Celsius, trout experience a net...
Energy Balance
The human body gets energy from the three macronutrients: carbohydrates, proteins, and fats. Energy is released when the chemical bonds in the organic compounds present in the food are broken down. The energy content of food is measured in kilocalories (kcal), defined as the amount of heat required to raise the temperature of one kilogram of water by one degree Celsius. This value is determined by measuring the temperature change of the water surrounding a calorimeter after the complete...
Obesity
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in adipocytes...
