Can chewing gum reduce face fat?

The answer to this question appears to be no. Most of the scientific evidence suggests that regular chewing gum does not provide any benefit to the body. This is not surprising. There are far too many potential health concerns to justify any public health campaign to encourage chewing gum use. But there is one exception: gum that contains polyvinyl chloride (PVC). According to one recent study, swallowing of an estimated 1.4 billion pieces a day of chewing gum may increase body fat levels.
Printable Clean Eating Grocery List for Weight Loss - Healthy and ...

That’s not to say chewing gum will not be helpful to your health.

Chewable Foods

You can chew these foods – fruits, vegetables, cereals and nuts – to relieve symptoms of certain conditions.

Fiber foods

Many fiber foods are not healthy, although there is some good evidence that fiber may help reduce the impact of cigarette smoking (in terms of risk of heart disease and stroke).

Fruit

Fruits are generally very low in calories, with only about 25% by weight of available carbohydrates. However, fruit consumption can improve diet quality and reduce the risk of some diseases. For example, a recent meta-analysis found that the number of grams of fruit and vegetables consumed per day was positively related with a range of risk factors for cardiovascular disease and type 2 diabetes.

Vegetables

In addition to fruit, vegetables are highly nourishing. Research suggests dietary fiber from vegetables, especially high-fiber varieties such as broccoli, black and green beans, peas, and cabbage, may reduce the risk of bowel disease. Moreover, recent evidence indicates that some types of vegetables may have protective effects against colon cancer. (8) For most of us, however, the real challenge comes from the food manufacturers. Because vegetable fiber is added to many food products, we do not know whether it has any health benefits. Some vegetables can be chewed, but this is not recommended as a way to improve their health. One study of people drinking a lot of tea showed that chewing tea, in addition to drinking milk, had no effect on their health. (9) Another review found that high amounts of fiber intake are associated with increased risk of many diseases. (10)

Fiber supplements

Fiber supplements contain fibers derived from fruit or plant matter. Some can be chewed, but because so many fiber supplements have sugar in their ingredients, they are unlikely to provide nutrition benefits and would probably be best consumed by people who are already consuming adequate amounts of fiber. (11