Bryan Johnson· Author
Toxic aldehydes Occurrence in fries: secondary lipid oxidation products that form when oxidized fatty acids break apart, singled out for their toxicity. These include: acrolein, 4-hydroxy-2-nonena HNEl, and malondialdehyde.
We can't find evidence that holds up here. Proponents are reasoning from mechanism or analogy rather than direct human data, and the most credible skeptics raise objections we can't dismiss.
Toxic aldehydes Occurrence in fries: secondary lipid oxidation products that form when oxidized fatty acids break apart, singled out for their toxicity. These include: acrolein, 4-hydroxy-2-nonena HNEl, and malondialdehyde.
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Secondly, these are fried in a number of refined seed oils. This is a problem because these refined seed oils are unsaturated fatty acids which oxidize very quickly which form aldahhides and these are cancerous toxins. These damage proteins, cell membranes and DNA which can lead to heart disease, liver disease, Parkinson's and Alzheimer's.