Yes
Stearic acid is a common fatty acid found in significant amounts in meat, poultry, fish, eggs, butter, grains, and milk products. Some websites have misleading information regarding the safety of magnesium stearate. Some of these sites claim magnesium stearate, even in as small an amount as a few milligrams. as found in dietary supplement capsules, is dangerous. There is no evidence this is true, particularly the tiny amounts found in supplements. 1. Magnesium stearate is harmful and blocks the absorption of nutrients. Magnesium Stearate is the magnesium salt of stearic acid, a long-chain saturated fatty acid unique in that it is the only saturated fatty acid that does not increase blood cholesterol or LDL. Stearic acid is found naturally in meat, poultry, fish, grains, cocoa butter and milk products. Magnesium stearate is an important ingredient in the manufacturing of dietary supplements. It serves as a filler and flow agent that helps producers maintain ingredients in a proper form for handling, and it prevents material from adhering to manufacturing equipment. Magnesium stearate in supplements. Magnesium stearate is a white substance, solid at room temperature, used in the manufacture of pharmaceutical and supplement tablets and capsules.  While some supplements may contain up to 20 mg of stearic acid (as magnesium stearate), this is, in reality, a very low amount compared to the 5 grams (5,000 mg) that can be found in a single common chocolate bar. Magnesium stearate is an important ingredient in the manufacturing of dietary supplements. It serves as a filler and flow agent that helps producers maintain ingredients in a proper form for handling, and it prevents material from adhering to manufacturing equipment. Magnesium stearate, also called octadecanoic acid, magnesium salt, is a white substance, powder which becomes solid at room temperature. It has the chemical formula Mg(C 18H 35O 2) 2. It is a salt containing two equivalents of stearate (the anion of stearic acid) and one magnesium cation (Mg 2+). Magnesium stearate melts at about 88 °C, is not soluble in water, and is generally considered safe for human consumption at levels below 2500 mg/kg per day. 1 Magnesium stearate is not a source of magnesium and has no benefits, but may have a detrimental effect on your immune function as stearic acid has been linked to suppression of T cells. 2  The filler also stimulates your gut to form a biofilm, which can prevent proper absorption of nutrients in your digestive tract. 1 One potentially hazardous additive commonly used is magnesium stearate. 2  Magnesium stearate is essentially a chalk-like substance, which prevents the supplements from sticking together and allows the machinery to run smoother and faster, which equates to cost savings during the manufacturing process. As a leading expert on the subject of dietary supplement quality, I have written this brief review to set the record straight and point out the flagrant misrepresentation behind such assertions. Magnesium stearate is a magnesium salt containing stearic acid. Stearic acid is an 18 carbon long saturated fat, common in our food supply. It is readily metabolized to oleic acid (the monounsaturated fat found in olive oil).  Safety of magnesium stearate and stearic acid, risk or danger, side effects and toxicity? I am not aware of any human studies that show MS, in the small amounts found in capsules, has any side effects, poses risks, danger, safety issues or causes any bodily harm. Some of these sites claim magnesium stearate, even in as small an amount as a few milligrams. as found in dietary supplement capsules, is dangerous. There is no evidence this is true, particularly the tiny amounts found in supplements. There is no evidence that small amounts of stearic acid are harmful. If anyone knows of a human study that indicates magnesium stearate, in the small amounts found in capsules, when taken orally in supplement form, has shown to have harmful effects, email me. Some of these sites claim magnesium stearate, even in as small an amount as a few milligrams. as found in dietary supplement capsules, is dangerous. There is no evidence this is true, particularly the tiny amounts found in supplements. Magnesium sulfate (or magnesium sulphate) is an inorganic salt (chemical compound) containing magnesium, sulfur and oxygen, with the formula MgSO 4. 
http://www.raysahelian.com/magnesiumstearate.html http://www.swansonvitamins.com/blog/blogging-with-lee-2/magnesium-stearate-safety https://www.drrons.com/beware-of-additives-in-supplements.htm http://www.swansonvitamins.com/blog/blogging-with-lee-2/magnesium-stearate-safety https://en.wikipedia.org/wiki/Magnesium_stearate http://articles.mercola.com/sites/articles/archive/2012/06/23/whole-food-supplement-dangers.aspx http://www.wellnessresources.com/health/articles/the_facts_on_magnesium_stearate/ http://www.raysahelian.com/magnesiumstearate.html http://www.raysahelian.com/magnesiumstearate.html https://en.wikipedia.org/wiki/Magnesium_sulfate
does magnesium stearate contain sulfur