dietary phytoestrogen blog posts

08 August, 2017

The good, the bad and the ugly effects, of dietary phytoestrogen in laboratory animal diets

By Luz Merle

Soybean meal, a common ingredient in laboratory animal diets, contains variable levels of phytoestrogens. These plant-derived compounds mimic the structure and function of estrogens in mammals and can have an impact on research results.

The main phytoestrogens (and their primary sources) include:

  • isoflavones (mainly genistein and daidzin, which are found in soybean protein),
  • coumestans (mainly coumestrol, which is found in alfalfa), and
  • ligans (found in flax and sunflower).

Read more about the physiological effects and research variations that can occur, if diets contain isoflavones.

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