We have built-in defenses, natural killer cells that roam the body, killing off budding tumors. But, as I’ve discussed, there’s a fat receptor called CD36 that appears to be essential for cancer cells to spread, and these cancer cells respond to dietary fat intake, but not all fat.
CD36 is upregulated by palmitic acid, as much as a 50-fold increase within 12 hours of consumption, as shown below and at 1:13 in my video How to Help Control Cancer Metastasis with Diet.
Palmitic acid is a saturated fat made from palm oil that can be found in junk food, but it is most concentrated in meat and dairy. This may explain why, when looking at breast cancer mortality and dietary fat, “there was no difference in risk of breast-cancer-specific death…for women in the highest versus the lowest category of total fat intake,” but there’s about a 50 percent greater likelihood of dying of breast cancer with higher intake of saturated fat. Researchers conclude: “These meta-analyses have shown that saturated fat intake negatively impacts breast cancer survival.”
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