Correct.  The issue is always more complex than it first appears.

Jim

On Jun 29, 2009, at 4:33 PM, Tracy Bradley wrote:

> I think taking into account the nutritional bang for the buck  
> matters also, and what quantities need to be consumed in order to  
> be well-nourished and to prevent hunger. Anecdotally, I need a lot  
> less beef than I do veg. Grains, man I could eat those all day and  
> never feel satisfied!
>
> Day, Wally wrote:
>>> Comparing by volume can be tricky.  An acre of wheat can yield  
>>> 3000 lbs,
>>> while an acre of tomatoes can yield 40 tons -- obviously a gigantic
>>> difference by volume.  However, in terms of available energy  
>>> (calories),
>>> the wheat has only about 1/3 less calories per acre than the  
>>> tomatoes.
>>> Still less, but not nearly as much as the volume difference would  
>>> lead you
>>> to believe.
>>>
>>
>> Another factor to consider - grains can be stored immediately and  
>> indefinitley quite easily. Fruits and veggies, however, require a  
>> wide range of storage methods (drying, canned, frozen, etc.). What  
>> should be added into the above equation - how much of that energy  
>> is "lost" because of improper storage methods and/or waste during  
>> storage prep? Obvioulsy, it would be best if everyone worldwide  
>> ate fresh, off-the-vine, food everyday. But how practical is that?  
>> (I can't believe I'm defending grains, but for the sake of  
>> discussion I will :)
>>