Low carbohydrate versus low fat Dieting

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many studies have focused on diets reduce calories via low-carbohydrate (atkins diet, scarsdale diet, zone diet) diet versus low-fat diet (learn diet, ornish diet). nurses health study, observational cohort study, found low carbohydrate diets based on vegetable sources of fat , protein associated less coronary heart disease. same study found no correlation (with multivariate adjustment) between animal fat intake , coronary heart disease (table 4). long term study monitored 43,396 swedish women suggests low carbohydrate-high protein diet, used on regular basis , without consideration of nature of carbohydrates or source of proteins, associated increased risk of cardiovascular disease.


a meta-analysis of randomized controlled trials international cochrane collaboration in 2002 concluded fat-restricted diets no better calorie-restricted diets in achieving long term weight loss in overweight or obese people. more recent meta-analysis included randomized controlled trials published after cochrane review found low-carbohydrate, non-energy-restricted diets appear @ least effective low-fat, energy-restricted diets in inducing weight loss 1 year. these results can understood because weight loss governed daily caloric deficit , not particular foods eaten. however, when low-carbohydrate diets induce weight loss considered, potential favorable changes in triglyceride , high-density lipoprotein cholesterol values should weighed against potential unfavorable changes in low-density lipoprotein cholesterol values.


the women s health initiative randomized controlled dietary modification trial found diet of total fat 20% of energy , increasing consumption of vegetables , fruit @ least 5 servings daily , grains @ least 6 servings daily resulted in:



no reduction in cardiovascular disease
no statistically significant reduction in invasive breast cancer
no reductions in colorectal cancer

additional randomized controlled trials found that:



a comparison of atkins, zone diet, ornish diet, , learn diet in premenopausal women found greatest benefit atkins diet.
the choice of diet specific person may influenced measuring individual s insulin secretion:


in young adults reducing glycemic [carbohydrate] load may important achieve weight loss among individuals high insulin secretion. consistent prior studies of diabetic patients in low carbohydrate diets more beneficial.

the american diabetes association recommended low carbohydrate diet reduce weight or @ risk of type 2 diabetes in january 2008 clinical practice recommendations.








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