>The USDA figures for wild atlantic salmon can be viewed via: >http://makeashorterlink.com/?G36424853 it doesnt square with my figures. did u get them? this has to be followed up to work out what is right. >For simplicity I'll work with the median values - 17.5 grams of >PUFA equates to 12.5% of caloric intake from fats. it makes quite a difference between taking 20 grams as 10% or 17.5 grams as 12.5%. i doubt there's any possibility of pinning a percentage down to a range closer than 10-15%. >So, total fat intake is 17.5/(12.5/100) or 140 grams. >140 grams of fat is 1260 kcal. >1260 kcal represents 42% of caloric intake from fats. i think it unlikely you would eat 140 grams only in a 3,000 calorie diet. you would need 3,000 in a cold climate and/or fair amount of activity. in absence of carbs you would be looking for more fat than that. in so far as any of my figures implied this configuration i wouldn't stand by it as a *desired* mix. >Fair assessment? sea mammals are preferred ahead of fish in polar diets. the PUFA being closer to 10% in blubber [rather than 20-25% in fish] a high blubber diet can deliver 20 grams of PUFA at 200 grams of fat. Chukchi schoolchildren are given a slab of seal blubber every day or two in their school lunch program to mimic the traditional diet. >Since you are a strong advocate of very low carb diets (1) the question of low carb is not quite the same as the issue of paleo. the first is a question of how to have the best diet, the second is what did our ancestors eat. >That gives an overall nutrient profile of: >140 grams, 1260 kcal, 42% of calories from fats >400 grams, 1600 kcal, 53% of calories from protein >35 grams, 140 kcal, 5% of calories from carbs. are u saying the issue of protein toxicity is the only problem with this breakdown? >That equates to 900 kcal from fat, 2400 kcal from protein. >Ouch! no, it equates to about 600 calories from meat, if the meat in question was 25% protein. andrew