More About Mechanical Enablers

Being capable of delivering junk food, fizzy drinks, cigarettes, and even alcoholic beverages, vending machines are capital-T trouble. Academic research teams often receive credit for self-evident facts, but their purpose is, after all, to verify hypotheses. Journalist Daniel Westlake wrote,

According to a study by the University of Michigan and Michigan State University, vending machines stocked with unhealthy options for young people often help lead to unhealthy eating habits.

Vending machines are a notoriously problematic means of distribution, with drawbacks like mechanical issues, quality and condition of the products, and of course cleanliness. Question for the reader: When is the last time you witnessed someone cleaning the inside or outside of a vending machine? We thought as much.

Customers have actually gotten sick. Westlake adds,

Sometimes food in these machines can melt, spill or go bad, in the machine which can draw insects and rodents to the machine… Every few weeks, open up the machine and clean it so that there are no bits or food or dust which may have accumulated on the products… Clean the tray where the snacks or items fall, as this is the area where most of the food refuse may be located if their packaging breaks. Clean the buttons since many people’s fingers are probably dirty.

(But what about the cleaning solution being sprayed into the closed environment occupied by food that people will in all likelihood not wash before eating? Just asking.)

There could be other obstacles to popularity. Not everyone enjoys cold fruit. Many kinds of fruit are much more tasty at room temperature. Not everyone has the teeth to deal with anything more resilient than a banana or a melon cube.

What happens to fresh produce in this setting? The enormous waste ratio was a recognized drawback in 2010, and likely still is. In that year a major vending machine manufacturer teamed up with a major fruit corporation to tackle the problems. A two-minute video produced by the company explains temperature variation, the food elevator, and other features of their machine.

In the following year, as a random example, one company publicized its 400 fresh-fruit vending machines in 25 states. Gil Sanchez, owner of Vend Natural, described his philosophy to a reporter, who wrote,

Vending machines are part of the solution for childhood obesity, he said. About 96% of his machines are in schools.

A piece at describes next-level vending machines in Scotland that are a combination snack bar and farmers market, along with some other technological marvels. No more will be said about that article here because it really deserves to be absorbed in all its profusion of detail.

These are the rather extravagant claims made by a rival company whose vending machines dispense canned fruit:

Fresh fruits are likely to lose nutrients when they are exposed to air. This doesn’t happen with canned fruits… A lot of people buy canned fruits from vending machines for its “liquid” […] All canned fruits are packed with plenty of liquid syrup. The syrup has extra sugar and calories… Nutrients from this liquid syrup will keep you revitalized and energetic… Economically, canned fruits are several times cheaper than fresh fruits too.

Your responses and feedback are welcome!

Source: “Problems with Vending Machines,”, 09/26/17
Source: “The Great Banana Challenge,”, 10/21/10
Source: “Vending machines offer major growth for fruit, vegetables,”, 05/17/11
Source: “These Vending Machines Serve Fresh Veggies Instead of Junk Food,”, 05/07/19
Source: “What? Fruit in a Vending Machine?,”, 02/27/16
Photo credit: Jonathan Lidbeck on Visualhunt/CC BY

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OVERWEIGHT: What Kids Say explores the obesity problem from the often-overlooked perspective of children struggling with being overweight.

About Dr. Robert A. Pretlow

Dr. Robert A. Pretlow is a pediatrician and childhood obesity specialist. He has been researching and spreading awareness on the childhood obesity epidemic in the US for more than a decade.
You can contact Dr. Pretlow at:


Dr. Pretlow’s invited presentation at the American Society of Animal Science 2020 Conference
What’s Causing Obesity in Companion Animals and What Can We Do About It

Dr. Pretlow’s invited presentation at the World Obesity Federation 2019 Conference:
Food/Eating Addiction and the Displacement Mechanism

Dr. Pretlow’s Multi-Center Clinical Trial Kick-off Speech 2018:
Obesity: Tackling the Root Cause

Dr. Pretlow’s 2017 Workshop on
Treatment of Obesity Using the Addiction Model

Dr. Pretlow’s invited presentation for
TEC and UNC 2016

Dr. Pretlow’s invited presentation at the 2015 Obesity Summit in London, UK.

Dr. Pretlow’s invited keynote at the 2014 European Childhood Obesity Group Congress in Salzburg, Austria.

Dr. Pretlow’s presentation at the 2013 European Congress on Obesity in Liverpool, UK.

Dr. Pretlow’s presentation at the 2011 International Conference on Childhood Obesity in Lisbon, Portugal.

Dr. Pretlow’s presentation at the 2010 Uniting Against Childhood Obesity Conference in Houston, TX.

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