Striving4Zen

Vitamin D is a fat-soluble vitamin that helps the digestive system absorb and regulate calcium and phosphorous. Naturally present in fatty fish (such as sardines and mackerel), egg yolk, lanolin, and liver, it's also produced by your skin as a result of direct exposure to UVB rays in sunlight. Vitamin D comes in two forms: D2 (ergocalciferol), often derived from yeast, and D3 (cholecalciferol), the type the skin makes as a result of sunlight exposure.

Benefits

Strengthens bones and prevents osteoporosis. Recently, research has suggested it may prevent high blood pressure, as well as colon, prostate, and breast cancers. It also is highly effective in boosting immunity.

News

A 2008 study published in the Archives of Internal Medicine found that low levels of vitamin D could lead to a substantially increased risk of death. Researchers analyzed vitamin D levels in 13,331 healthy men and women over the course of seven years. Low levels of vitamin D were linked to an increased risk of mortality from all causes by 26%.

How to take it

The current recommended dietary allowance of vitamin D is 200-600 IU. However, the National Osteoporosis Foundation recommends that adults age 50 and older consume 800-1,000 IU per day for bone health. The Institute of Medicine is expected to release new, significantly higher daily requirements for vitamin D next year. Ask your health care practitioner if you should take supplements, especially if you spend little time in the sunshine, live in a cloudy climate, have dark skin, are lactose intolerant, over age 50, overweight, or a strict vegetarian.

Side effects

Experts disagree on an upper limit of vitamin D, but the Institute of Medicine suggests that anyone over age 14 can safely consume up to 2,000 IU per day.

Source

Labels: calcium, eggs, healthy diet, immunity, sardines, skin, study, sunshine, Vitamin D, Vitamins

Check out MSN's list of nine immunity-boosting foods to help prevent colds and other illnesses this winter. None of it's exactly shocking news, but it's always good to have a reminder, especially when you're sitting on the couch watching Lost and eating shortbread like...

Here's the rundown:

1) Water, eight to 10 glasses a day
2) Probiotic-containing yogurt
3) Vitamin A-filled sweet potatoes
4) Tea
5) Chicken soup
6) Zinc-heavy beef
7) Mushrooms
8) Fish and shellfish
9) Garlic
10) Oats and barley

Source

Labels: colds, eating healthy, healthy diet, healthy food, Holistic Health, immunity

This herb has long been used in traditional Chinese medicine as an immunity-booster.

It contains complex sugar molecules called polysaccharides, which some studies show stimulate virus-fighting cells in the immune system. Re-searchers at the University of Texas and M.D. Anderson Cancer Center have turned up convincing evidence that astragalus boosts immune responses in lab animals, and in human cells in lab dishes.

“The findings on immune enhancement are very strong,” Blumenthal says. “And though we don’t have good evidence for its effects on colds and flu, there’s good reason to think it could help.”

Worth a try for: Boosting immunity.
How to do it: Astragalus is available in a variety of herbal cold formulations and in stand-alone supplement capsules. Concentrations vary, so follow package directions for use.

Source

Labels: astragalus, herbs, Holistic Health, immunity, Traditional Chinese Medicine