Nutrition Physical Work and Natural Fertility

The effects of hard physical work and nutrition on reproductive ability suggest that differences in the fertility of populations, historically and today, may be explained by a direct pathway from food intake to fertility (Figure 6), in addition to the classic Malthusian pathway through mortality. Charles Darwin described this commonsense direct relationship between food supplies and fertility, observing the following:

1. Domestic animals that have regular, plentiful food without working to get it are more fertile than the corresponding wild animals.

2. ''Hard living retards the period at which animals conceive.''

3. The amount of food affects the fertility of the same individual.

4. It is difficult to fatten a cow that is lactating.

All of Darwin's dicta apply to human beings.

30 Day Low Carb Diet Ketosis Plan

30 Day Low Carb Diet Ketosis Plan

An Open Letter To Anyone Who Wants To Lose Up To 20 Pounds In 30 Days The 'Low Carb' Way. 30-Day Low Carb Diet 'Ketosis Plan' has already helped scores of people lose their excess pounds and inches faster and easier than they ever thought possible. Why not find out what 30-Day Low Carb Diet 'Ketosis Plan' can do for you by trying it out for yourself.

Get My Free Ebook

Post a comment