Renaissance Monkey: in-depth expertise in Jack-of-all-trading. I mostly comment on news of interest to me and occasionally engage in debates or troll passive-aggressively. Ask or Submit 2 mah authoritah! ;) !
The nutritional myth that saturated fat is bad for you continues to fall apart as a steady stream of new books and studies on this topic hit the media. The latest work to challenge the old dogma is a book called The Big Fat Surprise by journalist Nina Teicholz.
In 2012, researchers at the Norwegian University of Science and Technology examined the health and lifestyle habits of more than 52,000 adults ages 20 to 74, concluding that women with “high cholesterol” (greater than 270 mg/dl) had a 28 percent lower mortality risk than women with “low cholesterol” (less than 183 mg/dl). Researchers also found that, if you’re a woman, your risk for heart disease, cardiac arrest, and stroke are higher with lower cholesterol levels.
In 2013, a prominent London cardiologist by the name of Aseem Malhotra argued in the British Medical Journal that you should ignore advice to reduce your saturated fat intake, because it’s actually increasing your risk for obesity and heart disease.
Then in March 2014, a new meta-analysis published in the Annals of Internal Medicine, using data from nearly 80 studies and more than a half million people, found that those who consume higher amounts of saturated fat have no more heart disease than those who consume less. They also did not find less heart disease among those eating higher amounts of unsaturated fat, including both olive oil and corn oil.
The best indicators for heart disease risk are outlined in the table that follows. Be aware that these same indicators have also been found to be fairly accurate in predicting your dementia risk.
1. HDL/total cholesterol ratio: HDL percentage is a very important heart disease risk factor. Just divide your HDL level by your total cholesterol. This percentage should ideally be above 24 percent. Below 10 percent, it’s a significant indicator of heart disease risk.
2. Triglyceride/HDL ratios: Divide your triglyceride number by your HDL. This ratio should ideally be below 2.
3. NMR lipoprofile: Possibly the most powerful test for evaluating heart disease risk, this test determines your proportion of smaller, more damaging LDL particles. Small LDL particles get stuck easily, cause more inflammation, and are tied to insulin and leptin resistance. This test is not typically ordered, so you might need to request it from your physician or order it yourself through a third-party. (For more information on the NMR Lipoprofile, please watch my interview with Chris Kresser, above.)
4. Fasting insulin: A normal fasting blood insulin level is below 5, but ideally, you’ll want it below 3. If your insulin level is higher than 5, the most effective way to optimize it is to reduce or eliminate all forms of dietary sugar, particularly fructose, and processed grains.
5. Fasting blood glucose: Studies have shown that people with a fasting blood glucose of 100-125 mg/dl had nearly three times the risk of coronary artery disease of people with a blood glucose below 79 mg/dl.
6. Waist-to-hip ratio: Visceral fat, the type of fat that collects around your internal organs, is a well-recognized risk factor for heart disease. The simplest way to evaluate your risk here is by simply measuring your waist-to-hip ratio. (For further instructions, please see the link to my previous article.)
7. Iron level: Excess iron can exert very potent oxidative stress, so if you have excess iron in your blood, you can damage your blood vessels and increase your risk of heart disease. Ideally, you should monitor your serum ferritin level and make sure it is below 80 ng/ml. The simplest ways to eliminate excess iron are blood donation and therapeutic phlebotomy.