Diets high in meat are apt to be low in milk and consequently low in calcium.

If the income is limited this is almost sure to be the case, since there will not be enough money to provide meat freely and at the same time satisfy other nutritive requirements.

Such diets are also likely to be low in fuel value and not provide enough working force even while men are declaring that they must have meat to give them strength.

They would have more strength and a better diet from every point of view if part of the meat money were spent for milk.

So the injunction to buy three quarts of milk to one pound of meat is a good rule for securing a well balanced and ample diet at the lowest cost.
Another good rule is to spend no more for meat, fish, and eggs than for milk, and as much for fruits and vegetables as for meat, fish, and eggs.
Families very commonly spend as much as one-third of the food money for meat; and, while they may secure a full third of their protein, iron, and phosphorus in this way, they may not get more than a sixth of their fuel and almost no calcium.