These pieces of diet advice from the past sound strange.

Back in the day, all kinds of fad diets became extremely popular even if the advice was strange and lacked scientific evidence. While they may have been in vogue at the time, some of these diets were dangerous. Today, these diet tips and tricks sound downright bizarre. Here are some of the weirdest diet advice from history.

Get rid of sugar and starches from your diet

Many popular diets even today do not include sugar and starch. Therefore, this may not seem like such bizarre advice. However, the reason it is on this list is because of the substitutes given in place of these types of foods. For breakfast, people were encouraged to consume a breakfast high in fat and protein. Some of the items on the recommended list were not very healthy.

Chew your food a great deal

Chew your food a great deal before you swallow it was a popular piece of advice in the past. The idea was to encourage people to consume less food so they could lose weight. However, it was also a way of expressing gratitude and appreciation for all the abundance nature has to offer.

Consume milk and eat vegetables

Some believed a diet that consisted of milk and vegetables had remarkable benefits on sleep. They also believed it helped with the natural digestive process - flatus. It was believed combining this diet with exercise and fasting could help avoid discomfort in the stomach and prevent one from staying up late at night.

Consume molasses, brewer's yeast, and wheat germ bread

This diet reportedly originated in Hollywood. The ingredients that make up this diet - wheat germ bread, molasses, and brewer's yeast - do not sound very appetizing. These items were also the subject of a novelty song from the 1950s.

Consume only cabbage soup

Multiple studies in recent years have highlighted the benefits of following a well-balanced diet. Sticking to only one food group or just one type of food could be damaging to your health. The cabbage soup diet became popular in the 1950s all the way through the '90s. Most people who followed the diet did so for weight loss purposes. Why it became very popular is not yet clear. However, news of this diet reportedly began circulating through a chain by fax, which ended up everywhere from, schools to offices before it hit mainstream media.