Monday, November 14, 2005

All those McDonalds Milkshakes and still poor bone health

You'd think with all those cheeseburgers, milkshakes, ice creams, lattes, and the dairy that's sneaked into every kind of food imaginable that the medical establishment would have worked out that something didn't add up as dairy as a useful source of calcium for humans.

America and the UK are suffering record levels of oesteoporosis and the message is illogically is to eat even more dairy. The Doctors who get very little (2 days) training in nutrition can be excused but even some quite experienced nutritionists get suckered in to the dairy lobby's hype "Dairy is an excellent source of Calcium"

For a cow maybe?

With the amount of Dairy secreted in our food forcing the EU to legislate for better labelling laws on allergens it just doesn't add up, if dairy were the answer the problem would be solved.

But guess what? - the generation who had free milk at school are experiencing record levels of suffering - despite this the Billion Dollar Dairy industry still maintain it's not enough that is the problem

USDA statistics show only 12% of girls and 32% of boys ages 12 to 19 get the DRI (Dietary Reference Intake) of calcium. Nearly 90% of adult bone mass is established by the end of this age range, and those who are not getting enough calcium are at increased risk for osteoporosis later in life, according to Dr. Duane Alexander, director, National Institute of Child Health and Human Development, Rockville, MD. He warns that osteoporosis is a geriatric disease with roots that can be traced back to adolescence.

Some of the consequences don't wait for old age, however. Grace Wyshak, Ph.D., researcher, Harvard School of Public Health, Boston, has conducted studies to examine the relationship between drinking carbonated soft drinks, physical activity and bone fractures. The most recent, published in the June 2000 issue of the Archives of Pediatric and Adolescent Medicine, showed that active girls who drink cola drinks are five times more likely to have bone fractures than girls who don't drink soda. With each population studied, from teenagers and adolescents to postmenopausal women, the researcher consistently found strong relationships between consumption of carbonated beverages and bone fractures in physically active populations.

After age 8, soft-drink intake climbs dramatically. By age 18, a teenager consumes about 19 oz. of soft drinks per day and less than one serving of milk. The problem is more acute for adolescent girls than boys the same age.

Furthermore, pediatricians are seeing the reemergence of rickets, a bone disease that results from low levels of vitamin D, a nutrient commonly fortified in all types of fluid milk. Vitamin D also aids in calcium absorption, and study results published in the Archives of Pediatrics & Adolescent Medicine in Oct. 2004 showed that nearly a quarter of 300 healthy teenagers were deficient in vitamin D.

The real answer? More green leafy veg, vitamin K, magnesium (soya, cashew, almonds, brocolli, bananas, green leafy veg) and some quality sunshine for vitamin D. Less of anti nutrients such as caffienated carbonated drinks will help to stop bone robbers too.

Tuesday, November 08, 2005

BSE, CJD, Mad Cow Disease may be in milk as well as meat!

news @ nature.com - Prions suspected in milk - Sheep mammaries shown to contain agents of fatal brain disease.

Scientists have finally found evidence for what some nutritionists have suspected for years, that BSE could be passed on in milk. This follows circumstantial evidence of a higher than average rate of CJD amongst Dairy Farm workers.

It also may explain new cases of BSE amongst cattle who have been allegedly protected and kept free from contaminated food.

The inflamed mammary glands of sheep have been found to contain protein particles that cause scrapie, a sickness similar to mad cow disease. This suggests that the suspect proteins, called prions, may also be present in the milk of infected animals.

"It is unlikely that the prions are not in the milk," says Aguzzi, a pathologist at the University of Zurich Hospital, Switzerland. "And the prospect is not a pleasant one."

Neil Cashman, a prion researcher at the University of British Columbia in Vancouver, is worried too. People have looked for prions in the milk of cows with BSE and haven't found any, he says. "But they haven't looked in cows with mammary-gland infection and BSE."

On 13 January 1995 SEAC held a special meeting to consider the significance of the death of a third dairy farm worker case from CJD. They concluded that the occurrence of CJD in three dairy farm workers with BSE in their dairy herds within the first five years of the CJDSU's surveillance study was a matter of concern, given the low probability of this happening by chance.

More - BSE Overview - BMJ - BSE Background News - Guardian