how fast does magnesium citrate work

Magnesium citrate typically works within 30 minutes to 6 hours after consumption to produce a bowel movement. The timing can vary based on individual factors such as digestive system function, hydration level, dosage, and whether it is taken on an empty stomach. It acts as a saline laxative by drawing water into the intestines, softening stool, and stimulating bowel contractions. The laxative effect usually starts within 30 minutes and can last for about 4 hours before the effects wear off.