Undernutrition w/o malnutrition as a protective factor to prevent DNA damage in the elderly
Despite the infomercials, emails and all the anti-aging miracles you get in the mail, the only thing that has consistently shown to extend lifespan in mammals in calorie restriction without nutrient restriction.
This is an interesting study in that it is done in healthy elderly patients. With a mild caloric restriction of 10-20%, the research found less DNA damage in the patient’s white blood cells. Most of the research seems to suggest that much of the benefit of calorie restriction has something to do with lowering insulin levels.