Flaxseed Almonds Brazil Nuts Walnuts & Co-Enzyme Q10 (360g). Linwoods Flaxseed. There are few foods from which you would gain such a high percentage of your RI of Magnesium and Selenium. Magnesium helps support normal healthy bones, muscle and nervous system function whilst selenium helps maintain immune system function.. This blend also contains Co-Enzyme Q10, an enzyme that occurs naturally in the body but declines with age, making dietary sources important in helping maintain adequate levels.