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Fluoride in Black Tea & Other News of Note

Posted Aug 02 2010 7:09am

Black Tea Contains More Fluoride Than Ever Thought (Foodconsumer)

Black tea may contain a higher concentration of fluoride than previously thought, according to a new study cited in a press release by Medical College of Georgia.

Dr. Gary Whiteford of the School of Dentistry, co-author of the study, suggests that heavy tea drinkers could get in trouble even though drinking a couple of tea a day may not pose a risk.

Early studies found black tea contains 1 to 5 milligrams of fluoride per liter, but the new study showed fluoride in black tea can be up to 9 milligrams per liter, almost doubling the early estimate… More

Quitting Smoking May Minimize Harmful Bacteria and Replenish Healthy Bacteria (ScienceDaily)

Patients with chronic gum disease who quit smoking in addition to undergoing nonsurgical therapy not only demonstrated a lower abundance of harmful oral pathogens, but also an increase in health-associated bacteria. The researchers from The Ohio State University, Columbus Ohio, and Newcastle University, United Kingdom report their findings in the July 2010 issue of the Journal of Clinical MicrobiologyMore

ADHD Linked to Western Diet of Takeout, Fried Food and Candy (AOL News)

Yet another reason to rethink a diet heavy in fried, packaged and processed foods: It could be the culprit to blame for the childhood development of attention deficit hyperactivity disorder (ADHD).

A study out of the Telethon Institute for Child Health Research in Perth, Australia, evaluated the diets of 1,800 teens, 115 of whom had been diagnosed with ADHD before the age of 14.

Dietary habits were divided into two categories. A “Western diet” consisted of takeout, packaged products – in other words, plenty of saturated fat, sodium and sugar – and few fresh fruits or vegetables.

A “healthy diet,” by contrast, offered unsaturated dietary fats, fiber and whole grains.

Western diets were strongly associated with ADHD diagnosis, while researchers found no connection between healthy diets and the illness…. More

Plant Compound Resveratrol Shown to Suppresses Inflammation, Free Radicals in Humans (ScienceDaily)

Resveratrol, a popular plant extract shown to prolong life in yeast and lower animals due to its anti-inflammatory and antioxidant properties, appears also to suppress inflammation in humans, based on results from the first prospective human trial of the extract conducted by University at Buffalo endocrinologists.

Results of the study appear as a rapid electronic publication on the Journal of Clinical Endocrinology & Metabolism website and will be published in an upcoming print issue of the journal… More

Concentration, Timing and Interactions Are Key When It Comes to Dietary Compounds (ScienceDaily)

Agricultural Research Service (ARS) chemist Thomas Wang, who specializes in cancer prevention research, has reported evidence that for some dietary compounds, length of exposure over time may be key to whether or not ingestion leads to a beneficial, or detrimental, effect.

Scientists do not know exactly why one person develops cancer and another does not. But they do know that certain nutrients might increase or decrease cancer risk. There are “layers” of factors involved in the development of cancer, and Wang is studying the layers involving peoples’ diet complexity and gene expression… More

To Make One Happy, Make One Busy (PhysOrg)

In Greek mythology, the gods punished Sisyphus by condemning him to roll a rock up a steep hill for eternity. But he was probably better off than if they’d condemned him to sit and stare into space until the end of time, conclude the authors of a new study on keeping busy. They found that people who have something to do, even something pointless, are happier than people who sit idly.

“The general phenomenon I’m interested in is why people are so busy doing what they are doing in modern society,” says Christopher K. Hsee, of the University of Chicago. He co-wrote the study with Adelle X. Yang, also of the University of Chicago, and Liangyan Wang, of Shanghai Jiaotong University. “People are running around, working hard, way beyond the basic level.” Sure, there are reasons, like making a living, earning money, accruing fame, helping others, and so on. But, Hsee says, “I think there’s something deeper: We have excessive energy and we want to avoid idleness”… More


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