Filler ingredients in supplement - Silica & Tricalcium Phosphate

Answered on August 19, 2014
Created March 17, 2013 at 1:17 AM

I'm taking a supplement and the only 2 questionable ingredients are Silica and Tricalcium Phosphate. I've had difficulty finding anything in regards to these 2 things effect on health, except that Silica MIGHT give you lung cancer if you inhale it (I'm not planning on snorting my vitamins.) But isn't Silica just Silicon, which is one of the many minerals found in our body, indicating that some silicon in the diet is good? Not sure what to think about Tricalcium Phosphate, it's used as an anticaking agent.

Edit: Are these 2 filler ingredients harmful and if so, how and at what levels?

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2 Answers

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on March 17, 2013
at 01:40 AM

Assuming your supplements are addressing a nutrient insufficiency, inert ingredients like those or magnesium stearate etc. are infinitely less harmful than continuing to have, for example, a persistent negative magnesium balance.


on March 17, 2013
at 09:34 PM

I agree with Travis about not sweating the small stuff, but for supplements you plan to take for long periods of time I think it's worth finding the purest form. Depending on what the supplement is, I might have brand recommendations here.

Silica / silicon dioxide is generally only added to make manufacturing easier, so it's usually pretty easy to find an alternate brand. While most people don't consider it toxic, Ray Peat believes it's harmful because (as I understand it) the small particle size used in supplement processing may enter the bloodstream where it doesn't belong.

I haven't heard any objections to tricalcium phosphate.

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