The strut is a common damper type used on many of today's independent suspension, front wheel drive vehicles as well as some rear wheel drive vehicles. A strut is a major structural part of a suspension. It takes the place of the upper control arm and upper ball joint used in conventional suspensions. Because of its design, a strut is lighter and takes up less space than the shock absorbers in conventional suspension systems. Struts perform two main jobs.
1 Fatty fish such as salmon, tuna, and mackerel are among the best sources. 2  Beef liver, cheese, and egg yolks provide small amounts. 3  Mushrooms provide some vitamin D. In some mushrooms that are newly available in stores, the vitamin D content is being boosted by exposing these mushrooms to ultraviolet light.
There are many reasons to add foods with vitamin D to your diet. 1  The health benefits of the vitamin include: 2  Supports calcium absorption in the gut. 3  Supports strong, healthy teeth and hair. 4  Regulates cellular growth and healthy cell activity. 5  Soothes and reduces systemic irritation and swelling. 6  Promotes skeletal health.