What Dose of Oral Vitamin D Do You Need to Prevent Cancer?
March 10, 2011
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Researchers have found that daily intakes of vitamin D by adults in the range of 4000-8000 IU are needed to maintain blood levels of vitamin D metabolites in the range needed to reduce by about half the risk of breast cancer, colon cancer, multiple sclerosis, and type 1 diabetes.
While an Institute of Medicine committee has stated that 4000 IU/day is a safe dosage, their recommended minimum daily intake is only 600 IU/day.
According to the study in the journal Anticancer Research:
"The supplemental dose ensuring that 97.5 percent of this population achieved a serum 25(OH)D of at least 40 ng/ml was 9,600 IU/d ... Universal intake of up to 40,000 IU vitamin D per day is unlikely to result in vitamin D toxicity."
Meanwhile, during the winter, pre-teen girls especially may need more vitamin D to have healthy bones, according to a separate new study. The research found that teen girls need a vitamin D intake of about 750 IU per day to have levels in their blood that allow for healthy bone growth.
This amount is higher than the U.S. Institute of Medicine's recommendation of 600 IU per day.
"... [W]earing sun block and not spending time outside can cut down on the vitamin D we get from the sun."
What Are GMOs?
From April 19th through April 25th we launch GMO Awareness Week. We set aside an entire week dedicated to providing you with information on GMOs and labeling initiatives.
GMOs are a product of genetic engineering, meaning their genetic makeup has been altered to induce a variety of “unique” traits to crops, such as making them drought-resistant or giving them “more nutrients.” GMO proponents claim that genetic engineering is “safe and beneficial,” and that it advances the agricultural industry. They also say that GMOs help ensure the global food supply and sustainability. But is there any truth to these claims? I believe not. For years, I've stated the belief that GMOs pose one of the greatest threats to life on the planet. Genetic engineering is NOT the safe and beneficial technology that it is touted to be.
Help Support GMO Labeling
The Grocery Manufacturers Association (GMA)—Monsanto’s Evil Twin—is pulling out all the stops to keep you in the dark about what’s in your food. For nearly two decades, Monsanto and corporate agribusiness have exercised near-dictatorial control over American agriculture. For example, Monsanto has made many claims that glyphosate in Roundup is harmless to animals and humans. However, recently the World Health Organization (WHO) had their research team test glyphosate and have labeled it a probable carcinogen.
Public opinion around the biotech industry's contamination of our food supply and destruction of our environment has reached the tipping point. We're fighting back. That's why I was the first to push for GMO labeling. I donated a significant sum to the first ballot initiative in California in 2012, which inspired others to donate to the campaign as well. We technically "lost the vote, but we are winning the war, as these labeling initiatives have raised a considerable amount of public awareness.
The insanity has gone far enough, which is why I encourage you to boycott every single product owned by members of the GMA, including natural and organic brands. More than 80 percent of our support comes from individual consumers like you, who understand that real change comes from the grassroots.
Thankfully, we have organizations like the Organic Consumers Association (OCA) to fight back against these junk food manufacturers, pesticide producers, and corporate giants.
Internet Resources Where You Can Learn More
Together, Let's Help OCA Get The Funding They Deserve
Let’s Help OCA get the funding it deserves. I have found very few organizations who are as effective and efficient as OCA. It’s a public interest organization dedicated to promoting health justice and sustainability. A central focus of the OCA is building a healthy, equitable, and sustainable system of food production and consumption. That's why I'm proud to announce I will be matching donations up to $250,000 this week.
Please make a donation to help OCA fight for GMO labeling.