Not all health or dietary supplements are created equal. And the same can be said of health or dietary supplement casings. Pay attention to what you’re putting into your body, and in turn what will be leeched into the environment.
Fish oil for example, in capsule form, often comes in gelatin capsules, which are commonly made from animal based ingredients (vegetarians take note). Web.md says of the possible negative side effects of gelatin:
Some people are worried that unsafe manufacturing practices might lead to contamination of gelatin products with diseased animal tissues including those that might transmit mad cow disease
NaturalGrocers.org bans products and supplements with artificial dyes with the following explanation:
There are currently seven artificial (synthetic) coal-tar based dyes on the market. There is evidence that four of the seven being used cause cancer in laboratory animals. The FDA has banned 17 food dyes since 1918 because of their potentially toxic effects. Furthermore, six of the seven being used in the US have been banned in other countries.
Companies like Onnit.com, makers of the nootropic Alpha Brain, are really leading the way in transparency of ingredients, and consideration to what they’re making their supplement capsules from. The announced their ‘Naked’ campaign earlier this year:
As part of our ongoing commitment to offer you the absolute highest quality in health, nutrition, and fitness, while minimizing environmental impact, Onnit is proud to announce that we are in the process of transitioning all of our capsules to be free of coloring and dyes.
Alpha Brain, Onnit’s flagship product is the first to make the transition to ‘naked’, environmentally friendly capsules. It also includes only earth grown ingredients. You can check out an independent review at http://brainperformancereviews.com