Study: Multivitamins Reduce Cancer Among Men

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Have you been taking your multivitamins? Me neither. But a new study suggests that multivitamins can reduce the long-term risk of cancer in men. Aaron Carroll runs it down for us:

Here’s the gist. They rounded up more than 14,000 doctors 50 years or older in 1997 and randomized them to get a daily multivitamin or placebo, and then they followed them through June of 2011. Otherwise, they did nothing to these participants, so there’s every reason to believe they were otherwise treated similarly. They wanted to see if the two groups developed cancer at different rates. They did.

Men who took a daily multivitamin had a statistically significant lower rate of cancer than those who took the placebo (17.0 versus 18.3 events per 1000 person-years)….This was an extremely large study, well done, with amazing follow-up. You can’t dismiss it easily.

The chart below shows the difference in cancer rates for men with and without a baseline history of cancer. Technically, there was no statistically significant difference between the cancer and non-cancer groups because the sample size of the cancer group was fairly small. But statistics be damned. It sure looks to me that you should really think hard about taking a multivitamin if you have a previous history of cancer. The adjusted hazard ratio in this group was 27% lower than the placebo group. In the non-cancer group it was only 6% lower.

Also: if you have no parental history of cancer, multivitamins had a big effect. The hazard ratio in this group was 14% lower than in the placebo group.

As Aaron says, “Multivitamins are cheap. You can buy them by the barrel at Costco. There are few harms or side effects.” In other words, there’s probably no reason not to take them, and there might be a big benefit. The full study is here.

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SIX TRUTHS

Reclaiming power from those who abuse it often starts with telling the truth. And in "This Is How Authoritarians Get Defeated," MoJo's Monika Bauerlein unpacks six truths to remember during the homestretch of an election where democracy, truth, and decency are on the line.

Truth #1: The chaos is the point.

Truth #2: Team Reality is bigger than it seems.

Truth #3: Facebook owns this.

Truth #4: When we go to work, we're in the fight.

Truth #5: It's about minority rule.

Truth #6: The only thing that can save us is…us.

Please take a moment to see how all these truths add up, because what happens in the weeks and months ahead will reverberate for at least a generation and we better be prepared.

And if you think journalism like Mother Jones'—that calls it like it is, that will never acquiesce to power, that looks where others don't—can help guide us through this historic, high-stakes moment, and you're able to right now, please help us reach our $350,000 goal by October 31 with a donation today. It's all hands on deck for democracy.

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