For the past 60 years, conventional medicine has warned us that saturated animal fats cause heart disease and should be restricted in a heart-healthy diet. But informed health experts now know that we actually need 50–70% good fats for optimal cardiovascular health. A 2013 editorial in The British Medical Journal titled “From the Heart, Saturated Fat is Not the Major Issue” confirms that saturated fat consumption does not cause heart disease — and that avoiding it actually promotes poor health in many ways.
Here’s where the real problem lies: when we reduce saturated fat to lower our LDL cholesterol, we are reducing the large, buoyant Type A LDL particles — not the small, dense Type B particles that are actually implicated in cardiovascular disease. Type B LDL only responds to a reduction in carbohydrates and sugar. Meanwhile, the true villains in heart disease are trans fats — found in margarine, vegetable shortening, and partially hydrogenated vegetable oils — which raise harmful Type B LDL, lower good HDL cholesterol, and are linked to Type 2 diabetes, high blood pressure, insulin resistance, and visceral fat accumulation.
The real culprit driving chronic inflammation and heart disease is sugar — specifically fructose. Research now links fructose to approximately 78 different diseases and health problems, including:
- Immediate spikes in uric acid levels that disrupt blood pressure, insulin production, and kidney function
- Chronic low-level inflammation in blood vessels, increasing the risk of heart attacks, strokes, and certain cancers
At least 50% of Americans consume as much as half a pound of sugar per day, largely due to processed fructose (HFCS) hidden in cookies, cereals, baked goods, and “low-fat” products — which food companies load with fructose, salt, and addictive flavorings to compensate for removed fat. Experts now recommend limiting sugar to just 5% of daily calories, or approximately 25 grams (5 teaspoons) per day. The bottom line: it’s not the fat. It’s the sugar.