Strategies to avoid the grim reaper of Cancer - Part I: Colon Cancer

Here; see especially Figure 2. See also this post.

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Neo, I’m slow in getting to this conversation. But, in case you didn’t get an answer here is what ChatGPT says:

Menadione (Vitamin K3) is a synthetic compound that is not commonly found in natural food sources. However, it is sometimes used in animal feed and supplements due to its vitamin K activity. Unlike natural forms of vitamin K, such as:

  • Vitamin K1 (Phylloquinone) – Found in leafy green vegetables (spinach, kale, broccoli).
  • Vitamin K2 (Menaquinone) – Found in fermented foods, animal products, and certain cheeses.

Menadione is not typically used in human dietary supplements due to concerns about potential toxicity at high doses. Instead, natural vitamin K sources are preferred for human nutrition.

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Thx @RapamycinCurious - very helpful