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From: Jeff Novick, MS, RD, LD, LN (novick.vegsource.com)
Subject:         Re: Nutrient density and vegan diet design
Date: July 16, 2010 at 6:20 am PST

In Reply to: Nutrient density and vegan diet design posted by Lee H on July 16, 2010 at 3:09 am:

It is important to understand that nutrient density is only one aspect of a food and while it is very important, I do not recommend rating/ranking foods by anyone aspect, including nutrient density.

In addition, there are many ways to rate/rank nutrient density so again, there would be no one response. Some things to consider are which nutrients are you including and what standard for each nutrient are you including (RDA, DRI, ORAC, etc)

I also am not here to recommend or support any dietary philisophy as there are many ways to peel a potato.

>>Fruitarian diet. Is nutrient density too low?

Define "fruit". Some people consider nuts/seeds fruit, etc etc. Which fruits are you including?


>>>> Heavy exercisers have a greater energy-requirement. Does that imply that they can get by with food of a lower nutrient density (e.g. more fruit), or does their need for additional nutrients increase in sync with their need for additional calories?


The person who maintains a healthy BMI and does it through lower caloric intake and lower exercise (though adequate) will be better off than someone who maintains the same healthy BMI through a higher caloric intake and higher activity level.

Adequate exercise/activity to maintain certain health benefits is recommended. More than that, may not be beneficial. The research from CR shows the major benefit to health and longevity is from calorie reduction and not increased exercise.

>>Do children over the age of 12 (say) in general have roughly the same profile of nutrient-requirements as adults?

You can see the full DRI/RDA/AI/UL tables here. Each nutrient is different but most are broken down by gender and age group.

>>You have explained why the nutritional case for eating nuts & seeds is weak.

Nuts/seeds are excellent foods and can easily be included by most everyone as part of a healthy diet and lifestyle. They are very calorie dense and can be high in Omega 6s, have poor EFA ratio's,

>>>But do cases commonly arise where they can be beneficial - e.g. stomach too small or transit-time too rapid to accommodate more high-water food?

There are always individual situations that may require adaption of principles to accommodate the situation.

In Health
Jeff

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