The Coal Foods
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Animal Fats
The Digestibility of Fats. We have now come to the last group of the real Coal foods, namely, the fats. Fats are the hottest and most concentrated fuel that we possess, and might be described as the anthracites, or hard coals of our Coal foods. They... Proteins Or Meats
Proteins, the First Foods. There are proteins, or meats, both animal and vegetable; and no one can support life without protein in some form. This is because proteins alone contain sufficient amounts of the great element called nitrogen, which forms... Starches
Sources of Starch. The starches are valuable and wholesome foods. They form the largest part, both in bulk and in fuel value, of our diet, and have done so ever since man learned how to cultivate the soil and grow crops of grain. The reason is clear... Sugars
Where Sugar is Obtained. The other great member of the starch, or carbohydrate, group of foods is sugar. This is a scarcer and more expensive food than starch because, instead of being found in solid masses in grains and roots like starch, it is sca... The Coal Foods
Kinds of Coal Foods. There are many different kinds of Coal foods, such as pork, mutton, beef, bread, corn-cakes, bacon, potatoes, rice, sugar, cheese, butter, and so on. But when you come to look at them more closely, and to take them to pieces, ... The Three Great Classes Of Food-fuel
Food is Fuel. Now what is the chief quality which makes one kind of food preferable to another? As our body machine runs entirely upon the energy or strength which it gets out of its food, a good food must have plenty of fuel value; that is to say, ...