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U.S. residents are wasting food like never before.
While many Americans feast on turkey and all the fixings today, a new study finds food waste per person has shot up 50 percent since 1974. Some 1,400 calories worth of food is discarded per person each day, which adds up to 150 trillion calories a year.
The study finds that about 40 percent of all the food produced in the United States is tossed out.
Originally posted by Happyfeet
Doesnt surprise me, when I worked at Pizza Hut we were throwing away a 3/1 ratio of pizzas and ingredients. I used to take home about 15 pizzas at the end of every night with permission because they were destined to the trash if I didnt.
I know some stores near is were throwing out a 5/1 ratio of food.
ScienceNOW, an online publication of the American Association for the Advancement of Science, reports that food waste occurs at the manufacturing level and in distribution, but more than half is wasted by consumers,
The new estimate of food waste, published in the journal PLoS ONE, is a relatively straightforward calculation: It's the difference between the U.S. food supply and what's actually eaten, which was estimated by using a model of human metabolism and known body weights.
Last year, an international group estimated that up to 30 percent of food - worth about $48.3 billion - is wasted each year in the United States. That report concluded that despite food shortages in many countries, plenty of food is available to feed the world, it just doesn't get where it needs to go.
Originally posted by Happyfeet
Doesnt surprise me, when I worked at Pizza Hut we were throwing away a 3/1 ratio of pizzas and ingredients. I used to take home about 15 pizzas at the end of every night with permission because they were destined to the trash if I didnt.
I know some stores near is were throwing out a 5/1 ratio of food.
ACTUAL STUDY: The Progressive Increase of Food Waste in America and Its Environmental Impact
Food waste contributes to excess consumption of freshwater and fossil fuels which, along with methane and CO2 emissions from decomposing food, impacts global climate change. Here, we calculate the energy content of nationwide food waste from the difference between the US food supply and the food consumed by the population. The latter was estimated using a validated mathematical model of metabolism relating body weight to the amount of food eaten. We found that US per capita food waste has progressively increased by ~50% since 1974 reaching more than 1400 kcal per person per day or 150 trillion kcal per year. Food waste now accounts for more than one quarter of the total freshwater consumption and ~300 million barrels of oil per year.
...
The food balance sheets provide a comprehensive assessment of the national food supply, including alcohol and beverages, adjusted for any change of food stocks over the reference period [8]. Since 1974, there has been a progressive increase in the per capita US food supply. Over the same period, there has also been an increase of body weight as manifested by the US obesity epidemic. We sought to estimate the energy content of food waste by comparing the US food supply data with the calculated food consumed by the US population.
Energy from ingested food supports basal metabolism and physical activities, both of which are functions of body weight. Surplus ingested energy is stored in the body and is reflected by a change of body weight. Because the average body weight of the US population has been increasing over the past 30 years, it is not immediately clear how much of the increased food supply was ingested by the population. Quantifying the food intake underlying an observed change of body weight requires knowing the energy cost of tissue deposition and the increased cost of physical activity and metabolic rate with weight gain. Here, we develop and validate a mathematical model of human energy expenditure that includes all of these factors and used the model to calculate the average increase of food intake underlying the observed increase of average adult body weight in the US since 1974 as measured by the US National Health and Nutrition Examination Survey (NHANES)