<p>Here’s a new study published last year. </p>
<p>[theheart.org:</a> trusted cardiology news and opinions](<a href=“Cardiology News & Opinion – theheart.org | Medscape”>Cardiology News & Opinion – theheart.org | Medscape)</p>
<p>This was a large study (300+ participants) split into two groups (low carb and low fat) with intensive behavior counselling for a two year period, starting with weekly 90 minute sessions for the first five months and bi-weekly for the second five months. The study was designed to produce equal weight loss:</p>
<p>a) Thel** Low-fat **group ate a strict calorie restricted diet (1200-1500 cal per day for women, 1500-1800 calories per day for men). 55% carb, 30% fat, 15% protein.</p>
<p>b) The low-carb group followed an Atkins diet: initial intervention of 20g carb per day for 12 weeks, increasing to 5g per day each week after that. They were encouraged to eat as much protein and fat as they wanted until full. There was no calorie restriction or attempt to count calories. The study does not say what their caloric intake was.</p>
<p>Both groups kept detailed food journals and exercised (walking) four times a week, starting at 20 minutes and increasing to 50 minutes.</p>
<p>Both groups lost 11% of their body weight at 6 months and 12 months, gaiining back to a 7% loss at 24 months, with counseling sessions just every other month during the second year.</p>
<p>Weight loss chart:</p>
<p><a href=“http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2949959/bin/nihms228493f2.jpg[/url]”>http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2949959/bin/nihms228493f2.jpg</a></p>
<p>LDL bad cholesterol levels were lower 3 and 6 months in the low-fat group, but the same at 12 and 24 months. Triglyceride levels were lower with low-carb at 3 and 6 months, but not at 12 or 24 months. HDL good cholesterol increased significantly more for the low-carb group at all point: 3, 6, 12 and 24 months. </p>
<p>Cholesterol chart:</p>
<p><a href=“http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2949959/bin/nihms228493f3.jpg[/url]”>http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2949959/bin/nihms228493f3.jpg</a></p>
<p>Here’s a link to the (free) full text of the study:</p>
<p>[Weight</a> and Metabolic Outcomes After 2 Years on a Low-Carbohydrate Versus Low-Fat Diet](<a href=“http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2949959/]Weight”>Weight and Metabolic Outcomes After 2 Years on a Low-Carbohydrate Versus Low-Fat Diet - PMC)</p>
<p>This study shows what has been observed by physicians using the low-carb approach. A very restricted carb diet can provide quick, signficant improvement in most of the cholesterol health markers (as well as blood pressure improvements, reduced blood sugar and insulin response, etc.).</p>