"snake oil" was not listed. Surprising as it is said to offer real relief for joint pain: <a href="http://healthmad.com/alternative/health-benefits-of-snake-oil/" rel="nofollow">http://healthmad.com/alternative/health-benefits-of-snake-oi...</a><p>The origin of the term "snake oil salesman" was to disparage people who sold fake snake oil or pushed it for diseases it would not treat (<a href="http://en.wikipedia.org/wiki/Snake_oil" rel="nofollow">http://en.wikipedia.org/wiki/Snake_oil</a>).
Hmm, first thing I notice looking at their data is that they put red yeast rice on top for blood pressure and cholesterol based on two studies, one of which did not assess red yeast rice, and neither of which assessed blood pressure.<p>The study that did not assess red yeast rice did assess lovastatin, which is assumed to be the active ingredient in red yeast rice, but if you're going to assume that they are equivalents, red yeast rice is definitely not "worth it" because you can buy a month's supply of the active ingredient for $4 at most any pharmacy, less than you would spend on the rice, and get a more precisely controlled dose.<p>Still a neat site design.
It's a cool visualization, but their cutoff line is labeled "worth it." To really justify that, they need more information. Thankfully the bubbles are broken down by specific health claim (so that some supplements have several bubbles for their effect on different conditions), but to determine "worth it," they need to include:<p>1. Some sort of way to account for type and frequency of side effects. For example if everyone who takes the supplement gets an intolerably bad taste in their mouth, that's a mild but prevalent side effect. If one person in 100,000 who takes the supplement dies, that's a comparatively rare but very serious side effect. This factors heavily into the "worth it" determination, because risk is a consideration.<p>2. Cost. If a supplement has a mild beneficial effect but costs $1,000 a month, I'm not sure most people would say it's "worth it."<p>3. Strength of effect. A statistically significant improvement is not necessarily clinically significant. For example, with a large sample a 1% decrease in LDL cholesterol may be statistically significant, but it is not clinically significant.<p>Those factors would help a person determine the pros and cons effectively. What is "worth it" varies considerably from person to person.
Good god, I wish there was a visualization like this for <i>everything</i>. Especially if you could input your own parameters and get your own personalized "worth it" line.
A major problem with this graph is that it mixes data from substance-deficient groups with data from normal groups, despite claiming that it shows benefits when taken by "an adult with a healthy diet."<p>For instance, the data on creatine found an increase in cognitive ability in vegetarians. Since creatine is found primarily in muscle tissue, it makes sense that the vegetarians (who were most likely to be deficient in this substance) would see improvement. However, when they tested the supplement in normal adults, there was no improvement. Yet creatine is above the "worth it" line.<p>Contrast that with vitamin C. It's below the "worth it" line, and it probably is for any normal person. However, if you were to test it on sailors who had eaten nothing besides canned meat for the last 6 months, it would probably be at the top.<p>Sure, we can assume that most of us are not vitamin C deficient, but we can also assume that most of us are also not vegetarians and therefore not creatine deficient.<p>(Maybe they considered vegetarianism a "healthy diet"? But it should be obvious that it's not, since it's almost impossible to get many of the top nutrients on this chart from your diet. For instance, if you want to get omega-3 fatty acids from a vegetarian diet the only way is consume supplements extracted from <i>algae</i>.)
Hmm, two on there I use:<p>1. Vitamin E for nerves. Not nervousness, but things like a little random twitching, especially right below an eye. Clears it up in a few days.<p>2. Melatonin for sleep regulation. Never more than 3 days straight, but it's a really nice reset switch for sleep if I've been hacking late nights recently.<p>Of course, ymmv..<p>(edited for formatting)