Here is a list of some common toxic ingredients added to pills:
- Magnesium Stearate/Stearic Acid
- Sodium Benzoate/Potassium Sorbate
- Corn Starch
- Titanium Dioxide
- Hydrogenated Oils
Here are some links on dangerous additives in general:
I always wondered why pills that were so different gave me the same symptoms, like worse acne and insomnia. I realized it must be the pills themselves, not the "active ingredient" in the pills. And it turns out most additives in pills are poisonous. Think about it: what makes a pill stick together and keep its shape? Whatever it is, it's definitely not natural or good for you. One of the pills that gave me insomnia was doxycycline. For years, I thought it was just because it kills good bacteria that we need. But then I looked up the ingredients: http://www.rxlist.com/doryx-drug.htm
Inert ingredients in the capsule formulation are: lactose; microcrystalline cellulose; povidone; starch wheat; magnesium stearate; cellulosic polymer coating. The capsule shell and/or band contains FD and C blue No.1; FD and C yellow No. 6; D and C yellow No.10; gelatin, silicon dioxide; sodium lauryl sulfate; titanium dioxide.
I think the prescription industry doesn't really care what they put in pills, as long as the pills contain the active ingredient. The dietary supplement industry does the same thing, but to a lesser extent.
What about gelatin?
I really couldn't find anything that said gelatin capsules are dangerous. I found these sources that say they are not dangerous:
It does come from animals though, if you care about that kind of thing.
What about supplements in liquid or powder form?
Well, let's take a look at the "other" ingredients in cod liver oil:
Other ingredients: Natural lemon flavor, proprietary antioxidant blend (consisting of rosemary extract, ascorbyl palmitate and natural tocopherols).
As for powder, I searched a vitamin site for vitamic c in powder form, and one of the results didn't even have a list of ingredients because it was 100% pure vitamin c. A second one didn't have a list of ingredients either, and it said: "Contains absolutely no preservatives, flavors, honey, sugars or any additives."
Those both look pretty good. They are at least way better than capsule or tablet form. So if you want to supplement, use liquid or powder form supplements, preferably ones with no additives. Liquid and powder supplements don't need fillers or coatings, but they can still have preservatives or sweeteners or other additives, so watch out for those.
Remember - It is always best to consume foods and supplements that contain NO added ingredients. When that is not possible, consume things with the least amount of additives as you can.