▁by ▁Mag g ard ▁suggest ▁that ▁this ▁difference ▁decre ases ▁significantly ▁over ▁time . ▁G astr ic ▁band ing ▁patients ▁lose ▁an ▁average ▁of ▁ 4 7 . 5 % ▁of ▁their ▁excess ▁weight , ▁according ▁to ▁a ▁meta ▁analysis ▁by ▁Buch wald . ▁ ▁It ▁is ▁important ▁to ▁note ▁that , ▁in ▁order ▁to ▁maintain ▁their ▁weight ▁reduction , ▁patients ▁must ▁carefully ▁follow ▁post - oper ative ▁gu idel ines ▁rel ating ▁to ▁di et , ▁exercise , ▁and ▁band ▁maintenance . ▁We ight ▁reg ain ▁is ▁possible ▁with ▁any ▁weight ▁loss ▁procedure , ▁including ▁the ▁more ▁radical ▁procedures ▁that ▁initially ▁result ▁in ▁rapid ▁weight ▁loss . ▁The ▁National ▁Instit utes ▁of ▁Health ▁recommendation ▁for ▁weight ▁loss ▁is ▁ 1 ▁to ▁ 2 ▁pounds ▁( ½ ▁to ▁ 1 ▁kil ogram ) ▁per ▁week , ▁and ▁an ▁average ▁band ed ▁patient ▁may ▁lose ▁this ▁amount . ▁This ▁is ▁variable ▁based ▁on ▁the ▁individual ▁and ▁their ▁personal ▁circumstances , ▁motiv ation , ▁and ▁mob ility . ▁ ▁Long er - term ▁studies ▁are ▁beginning ▁to ▁reve al ▁that ▁adjust able ▁g astr ic ▁band ing ▁( ▁ ▁Ben ef its ▁of ▁g astr ic ▁band ing ▁when ▁compared ▁to ▁other ▁b ariat ric ▁sur ger ies ▁Lower ▁mort ality ▁rate : ▁only ▁ 1 ▁in ▁ 1 0 0 0 ▁versus ▁ 1 ▁in ▁ 2 5 0 ▁for ▁R oux - en - Y ▁g astr ic ▁by pass ▁surg ery ▁No ▁cutting ▁or ▁st ap ling ▁of ▁the ▁st om ach