Q. I often eat konjac jelly or noodles while dieting. Why exactly does it help with weight loss, and are there any potential side effects?

Konjac's weight loss benefit comes from glucomannan, which swells into a gel-like substance in the stomach, creating a prolonged feeling of fullness. While this effectively lowers caloric intake, Traditional Korean Medicine (TKM) advises caution. Konjac is 'cold' in nature and nutritionally void; consuming it as a staple can lead to 'Spleen Deficiency' (脾虛). When the Spleen—the engine of digestion—weakens, energy circulation stalls, and the body lowers its basal metabolic rate to conserve energy. Furthermore, poor digestion leads to the accumulation of 'Phlegm-Dampness' (痰飮), causing the body to feel heavy and swollen. Additionally, artificial sweeteners in processed konjac products can contribute to 'Blood Stasis' (瘀血), further hindering metabolism. Konjac should be treated as an occasional supplement rather than a meal replacement to ensure you don't compromise your digestive vitality during weight loss.