 [ Symptoms ] how quickly can i expect to lose weight after beginning a weight loss plan [ Disease ] if you are really sticking to it a good plan will produce 10 weight loss in three to four months and up to 20 weight loss at one year a less ambitious effort will typically produce 5 weight loss in three to four months and 10 weight loss at a year people often say that losing one to two pounds a week should be your goal but i typically see more than that in the short term and less than that in the long term it does not really worry me if someone is losing three to four pounds a week at the outset