Which rat gets fat?
Background: The USDA recommends 45-65% carbohydrate, 10-35% protein and 20-35% fat calories for Adults(19 years and older).
-USDA Dietary Guidelines 2010 -pg. 15
The following statement suggests the USDA recommends eliminating saturated fat.
The body uses some saturated fatty acids for physiological and structural functions, but it makes more than enough to meet those needs. People therefore have no dietary requirement for saturated fatty acids.
The USDA seems to advocate replacing ALL saturated fat with PUFA:
replacing (saturated) with monounsaturated and/OR polyunsaturated fatty acids is associated with low blood cholesterol levels, and therefore a lower risk of cardiovascular disease.
-USDA Dietary Guidelines 2010 -pg 24
This experiment hypothesizes that when two rats are fed an equal number of calories, the rat that eats according to USDA Dietary Guidelines for Americans grows fatter than the rat that eats a high saturated fat diet designed by Paleo scientist (fill-in-the-blank).
Start with 2 rats, A + B.
Subject A Diet (adjusted for 2000 calorie diet):
Fat - 35% with 100% as polyunsaturated vegetable oil (Corn oil) Carbohydrate - 45% with 50% as whole grain wheat fiber and 50% as fruit/vegetables Protein - 20%
Subject B Diet (adjusted for 2000 calorie diet):
Fat - 35% with 90% saturated fat and 10% Omega 3 fats (Fish oil) Carbohydrate - 45% with 100% as fruits/vegetables/0 whole grains Protein - 20%
If I wanted to advance research that links Omega-6 fats and whole grain wheat fiber to obesity, how could I tweak this research project or modify this to pursue a Master's Thesis? Does the USDA rig their numbers so that it is impossible to generate obesity with their given ratios? How could I improve the design of this experiment?