Rapid weight gain may be due to lifestyle changes such as quitting smoking. However, it may also indicate an underlying medical condition, such as kidney disease, insomnia, and cirrhosis.

But according to diet experts, such a person hasn't discovered some magic spell to avoid weight gain. Weight loss and management -- apart from potential biological factors -- come down to what ...

The supplement industry markets countless products promising rapid weight gain, but only a handful offer meaningful benefits backed by scientific evidence. Understanding which supplements ...

Weight gain without changes in diet or activity can signal hypothyroidism ... A sluggish heart rate can cause fatigue and fainting spells. Some individuals may also experience shortness of ...

The most sustainable way to gain weight is to do so slowly. Methods of rapid weight gain may be hard to maintain. People who wish to gain weight quickly should speak with a doctor first.

Naturally, you wonder: Can you gain weight in one day ... will slow to compensate before losing weight.” So there’s really no hard-and-fast number, Angelone says. (Sorry!).