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In this short work, the author discusses the problem of obesity by examining its roots. A historical look at the evolution of mankind provides a basis for his theory. In the preface, Kalve discusses the modern way of treating obesity and its failure. In the rest of the work, he builds his case methodically by first looking at the lifestyle and food supply of the earliest man. Next, he delves into the historical changes that lead to introducing new foods such as potatoes and dairy into man's diet. The author asserts that these rapid changes in how humanity lives and produces food have not allowed humans to adapt to their new way of eating. This, coupled with a readily available, plentiful, and genetically modified food supply, makes it unnecessary to gather and hunt for substance. Thus, he concludes, the answer to obesity lies in a return to natural foods.
Kalve presents a profound argument in an interesting, easily accessible short treatise. His look at the historical and evolutionary aspects of how humans have obtained their food supply is fascinating. His arguments are well-founded and researched. The work offers valuable insights into the modern epidemic of obesity which he believes can be solved with a shift in how people select food. This short work hits all the important changes in the world and relates them to the rapid rise in obesity. Readers interested in learning more about how the eating habits of humans have evolved and how it relates to obesity will find the answer here. The author proposes a rather simple solution to the problem if one is willing to undergo the changes suggested.