Not all calories are the same

Do you think you need to eat low fat foods to avoid heart disease? Think again.
What is important is WHERE the fat in your food comes FROM and WHAT ELSE you eat. Which is why it helps to think in terms of food groups, not  calories. What’s more important is where your calories come from, than how many you have in a day.

Consider dairy products as an example. If you are not intolerant to dairy products (and many people are without knowing it) and you can find good quality butter, milk, cheese, yoghurt, then eat them without second thought. Dairy products which come from animals that roam freely and eat green grass have more omega-3 fatty acids and hence have an anti-inflammatory effect when they’re eaten.

At the same time, be very careful what else you eat.

Reduce refined carbohydrates, as they can fuel metabolic syndrome, diabetes, heart disease and other conditions. In other words, avoid sugar, white bread, sweets, cakes etc.

All in good moderation, as the Ancient Greeks said: ΠΑΝ ΜΕΤΡΟΝ ΑΡΙΣΤΟΝ

Dr Assem Malhotra, talks about these issues in the British Medical Journal.

Also, Greek-American dietitian Bill Lagakos explains in detail the relative importance of calories in his book “This poor, misunderstood calorie’.

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“Physical Activity Needed in Order to Reap Benefits of Dietary Restriction”

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Research in flies points to enhanced fatty acid metabolism in muscle 
as a key driver of the lifespan extending process 

Fruit flies on  restriction (DR) need to be physically active in order to get the lifespan extending benefits that come from their Spartan diet.

If the same axiom holds true in humans, those practicing caloric restriction in hopes of living longer need to make sure they eat enough to avoid fatigue.

According to research at the Buck Institute, flies on DR shift their metabolism toward increasing fatty acid synthesis and breakdown, specifically in muscle tissue.

“Dietary restriction is known to enhance spontaneous movement in a variety of species including primates, however this is the first examination of whether enhanced physical activity is necessary for its beneficial effects,” said Buck faculty Pankaj Kapahi, PhD, who runs the lab where the research took place.

“This study establishes a link between DR-mediated metabolic activity in muscle, increased movement and the benefits derived from restricting nutrients,” he said, adding that flies on DR who could not move or had inhibited fat metabolism in their muscle did not exhibit an extended lifespan.

“Our work argues that simply restricting nutrients without physical activity may not be beneficial in humans,” said Kapahi.

The research was published in the July 3, 2012 edition of Cell Metabolism.

For more information: www.thebuck.org

http://www.cell.com/cell-metabolism/abstract/S1550-4131(12)00242-2