Sometimes people end up transforming their own lives, when people in their vicinity make a change of lifestyle.
Three British wives devotedly altered their eating habits to support their type 2 diabetic husbands' embarkment on diabetes.co.uk's low-carb programme.
And unintendedly, they ended up losing a lot of weight and feeling better themselves:
Mirror: Three Wives Helped Their Husbands to Beat Diabetes and Ended Up Losing Seven Stone Themselves