The action time of diet fudge depends on the formula and usage of specific products. Generally speaking, the main function of diet fudge is to help lose weight by reducing appetite, promoting metabolism or increasing satiety.

If the diet fudge contains ingredients that reduce appetite, such as capsule algae and cellulose, its effect may last for several hours to a day. These ingredients can reduce appetite by affecting the appetite center of the brain, making you feel full, thus reducing the food you eat.

Some diet fudge may contain components that regulate metabolism, such as caffeine and green tea extract, which can help to lose weight by promoting fat burning and metabolism. Their effects may last for several hours to a day, and the specific effects vary from person to person.

However, it should be noted that diet fudge is not the only way to lose weight, and it is not enough to rely on fudge alone. The action time of slimming fudge is limited, and long-term weight loss needs to be combined with reasonable diet and exercise habits to achieve the best results. In addition, everyone's physical condition and metabolism are different, and the effect on diet fudge may be different.

In a word, the action time of diet fudge is limited, and the specific effect varies with product formula and individual differences. If you have specific weight loss needs, it is recommended to consult a doctor or a professional.