Bariatric surgery will be useful for women who have a body mass index of over 35, since it will be difficult for these women to lose weight through dieting and exercise alone. The only issue after Bariatric surgery is that it alters the absorption of certain nutrients, so they will require a lot of care and monitoring in nutrition so that they don't develop any nutritional deficiencies that could affect them or the growing foetus during the pregnancy. For more information, visit care.com