Chevan,
You are absolutelly correct on the matter that the calorific value is important, maybe even more important than the pure weight.
The reason why I did not mention it (I actually did mention it before in this comment: “First quarter 1943, app. 17% of food (by calorific value) that was consumed by RKKA was from US supply.”) is because wanted to keep my post as short and focused as possible AND this will not change significantly the picture. But since you mentioned it, I will elaborate on it.
In the same article (Gosh! I had to go to the library again! ) there is the US deliveries split per food category:
[b]Arrived by % of total [/b]
[b][u]Shipped[/u] [u]20sep45[/u] [u]arrieved shipmen[/u][/b]
1 Weat,grains,flour 1209211 1154180 27,0%
2 Sugar 703079 672429 15,7%
3 Meat canned and dry 822510 782973 18,3%
4 Fats, smoked meat 767339 730902 17,1%
5 Vegitable oil 521195 517522 12,1%
6 Milk,dry fruits,vegi 384712 362421 8,5%
7 Fruits,beverages [u] 67591[/u] [u] 61483[/u] 1,4%
[b]total metric tonns: 4475637 4281910[/b]
The calorific value of Fats is app 2,25 times higher than on proteins and carbohydrates (9 kcal/g versus 4 kcal/g).
As you see from the table the fat rich categories (3,4,5) constituted 47,4% of the total tonnage. So you could say that the actuall energetic value of the food from US lend-lease was app. 1,6 times higher than compared to pure bread and vegitable diet. But this is an absolut top estimate. The real impact was somewhat lower, because Soviet sitizens still had some fats in the died from the local sources plus canned meat does not only consist of fats and therefor has lower average energy value.
Lets take this coefficient to be 1,4.
So now you can take the values for extra food per day and number of people fed by only lend-lease food and multiply by 1,4. Result:
[ul]
[li]32 gramm - average extra food per day per person. [/li][li]4,8 mil - people that could be fed only by lend-lease help from USA[/li][/ul]
As I said it does NOT change the situation.