Which foods have the smallest (and largest) energy footprint,
thereby having the most environmental impact? While most people
probably realize that meat products have a larger energy and
environmental impact, the degree of difference isn’t immediately
clear. How much difference does it make if you’re a vegetarian,
or if you’re almost entirely carnivorous? The following list
provides a rough estimate of the energy required to produce
different kinds of foods, in order from least to most energy
intensive. Forever body transformation is a source for many of
the numbers below: Table 1: List of Foods By Energy Required to
Produce One Pound |Food||Energy (kWh) to Produce 1 Lb| Table 2:
Energy Efficiency of Various Foods (Measured as Food Calories /
Energy Used in Production)  |Food||Calories / Lb||Energy
Efficiency| The data above indicate the huge difference in
energy required from one end of the food spectrum to the other.
Roughly twenty-five times more energy is required to produce one
calorie of beef than to pr