How High-Fat Diets Fuel the Spread of Cancer

Shift your macronutrient balance — more carbs, less fat — A high-fat diet, defined in the study as 60% of daily calories from fat, disrupts how your body burns glucose and instead forces it to rely on fat for energy. That imbalance drives cancer spread.

I now recommend keeping fat intake between 30% and 40% of your daily calories. That means priorit... See more

If you're carrying extra weight, especially around your midsection, focus on gentle daily movement like walking, increasing your carb intake from healthy sources and reducing inflammatory triggers. This isn't about crash diets. It's about restoring balance in your metabolism so your body functions optimally.

Fibronectin, a sticky protein that acts like molecular glue, was found in far higher amounts in the lungs and platelets of mice on a high-fat diet. It made it easier for cancer cells to latch on and stay in place. Platelets not only carried more fibronectin but also took it up and released it with greater efficiency, concentrating it right where ca... See more

A one-week switch to a healthier diet was enough to reverse many of these changes — When mice were taken off the high-fat diet for just seven days, platelet activity dropped, fibronectin levels normalized and cancer cells were half as likely to stick to lung tissue. This means your diet doesn't just impact long-term risk; it influences cancer behav... See more

Get serious about inflammation — The research showed that fat tissue in obese mice released high levels of a powerful inflammatory chemical that triggered fibronectin buildup in platelets. That means excess body fat actively fuels the environment for cancer to spread.

If you've been eating a high-fat diet, especially one high in vegetable oils, your body is already creating the conditions that help cancer spread. But this isn't just about fat. It's about the kind of fat, the ratio of carbs to fat and how those fats alter your blood and tissues.

Eliminate vegetable oils from your diet — The real problem isn't just fat. It's linoleic acid (LA), a polyunsaturated fat found in vegetable oil and nearly every processed and restaurant food. High LA intake disrupts mitochondrial function, weakens your immune system and triggers clotting factors that directly contribute to cancer spread. Your goal... See more