He looks at success stories and visits a fair share of institutions that deal specifically with the effects of the
body on calorie restriction... aka: «fasting».
Furthermore, relevant review
articles on calorie restriction and intermittent fasting were reviewed for additional relevant studies to include in the review.
Although UTHSCSA was a hotbed of
research on calorie restriction and aging (see «Hungry for Science»), it wasn't until Bartke moved to SIU in 1984 that questions about aging began percolating in his mind.
I was particularly drawn to Dr. Eric Ravussin's lab at Pennington Biomedical because of their extensive
work on calorie restriction and intermittent fasting.
Is there a difficulty between eating beans and lentils on a daily basis, which are high in protein, while maintaining a low overall consumption of protein, in particular of the amino acid methionine, also recommended by Dr Greger in the videos
on calorie restriction vs protein restriction for life - extension?
Another surprising finding in rats maintained on intermittent fasting is increased testicular mass and testosterone / estrogen ratio compared to control rats or
rats on a calorie restriction diet (57).
Studies
on calorie restriction through short - term fasting just before chemotherapy — defined as a complete lack of food and caloric beverages (noncaloric beverages such as water are allowed) for 72 hours or less — has demonstrated a wide range of beneficial effects.
Then there is the ketogenic diet — Protein Power and various other non-ketogenic diets — all
based on calorie restriction and on little or no science.
There's also evidence that the microorganisms present in your gut can affect how well you age, 1 and this, of course, ties in directly with the latest
research on calorie restriction and longevity.
Those who overeat will experience the biggest increase in the superficial layer, while the people who are
on calorie restriction will lose this layer.
Eating 1 - 1.5 grams of good quality protein for each pound of bodyweight every day is key, if you spread this protein intake throughout 5 - 7 meals, you won't lose muscle when you are
on a calorie restriction.
BCAA also help to keep workout intensity when you are
on the calorie restriction, as the production of neurotransmitter serotonin (gives the feeling of fatigue) is reduced.