Nutrient Intake Frequency Was: Re: Protein Combining ?

[Guest guest]

Hi Bill:

'Protein combinations' is a specific case of a more general issue.

While we know what the current recommendations are for AVERAGE daily

intake of all the recognized nutrients, my impression is that we

don't know much about the required frequency of intake. While it no

doubt would be possible to consume the exact amount required every

hour, that is not very practical. So the question, more broadly

stated, seems to me to be: " How long can we go without each of the

various nutrients without causing harm, so long as our total intake

satisfies the RDA? " .

Three minutes appears to be the longest we can go without oxygen;

perhaps four or five days without water in a temperate climate; two

months, perhaps, for vitamin C before scurvy will begin to take its

toll; many months, I have read, for vitamin B12; amounts of time that

vary with initial body fat content as regards total caloric intake,

before the body starts breaking down lean body mass for its energy

needs; ...................... and so on.

But do we have good information about each of the other essential

macro and micro nutrients?

This is information that it would be good to have, if it exists.

Rodney.

>

> I was watching discoveryhealth channel this a.m. and the question

was

> asked whether plant protein was as " good " as animal protein. I was a

> bit surprised at Dean Ornish's answer. He, of course, stated that

> plant source of protein has less saturated fat than animal, but then

> he said some care should be exercised to combine plant sources to

> provide all essential amino acids. The specific example he gave was

to

> combine beans with rice.

>

> I am perplexed that he continues to support the notion of the

> " limiting amino acid " and " incomplete " protein.

>

> Jeff Novick showed quite convincingly that this is not really

> necessary at each meal but eat a variety of plants each day which

> makes healthy sense for a number of reasons.

>

> Here is Jeff's reasoning:

>

> /message/15605

> /message/15818

>

> Maybe this is what Ornish was alluding to, ie. to eat a variety, but

> then why would he assert that for instance beans must be eaten with

> rice at same time in same meal?

>