Weight loss tips for seniors lifestyle changes for long-term weight loss and health by marian anne eure linkedin; marian eure, rn, is a registered nurse with more than 25 years of experience in adult healthcare, health promotion, and health education learn about our editorial process. Weight loss tips for the elderly. When should i be concerned about my weight loss? unplanned weight loss can lead to serious health effects speak to your doctor: if you have lost 4% to 5% or more of your body weight in the past 12 months without trying to or; if you have lost 10% or more in a 5 to 10 year period or longer without trying to; what can unplanned weight loss lead. ...