5 Steps to prevent Heart Disease

Friday, January 6, 2012

It is not as simple as 8 calories a day

TITLE PAGE 19:  Twenty two pounds of inevitable fat.

“Over 30 years, the daily ingestion of only 8 kcal more than expended can increase body weight by 10 kg.  This represents the average amount of weight gained by Americans during the 30-year period between 25 and 55 years of age. “

p. 1607
Williams Textbook of Endocrinology, 2011, 12 th. Edition by Shlomo Melmed et. al.
Saunders Elsevier

referenced from Rosenbaum M et. al., Obesity.  N Engl J Med  1997;337-408.

Caveat Emptor:
“older people have a lower metabolic expenditure than younger ones and as a rule lose weight more slowly since metabolic rates decline by approximately 2% per decade (about 100 kcal per decade) (Lin et. al. 2003).

p. 179
A Guide to Obesity and The Metabolic Syndrome, Origins and Treatment by George A. Bray, CRC press, 2011

This math does not compute.  Is it the extra calories or the slower metabolism or are they saying the slower metabolism comes out to be 8 extra kcal. per year?

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