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With bottled pills, you can have complete loss of C-vitamin within a week if the pills are exposed to moisture, according to an expert in food science. Not even a tight lid can prevent that from happening.
Your pill bottle may be tightly capped but every time you remove the lid to get out your vitamins moisture enters into the bottle, especially if you store your vitamins in high-humidity areas like the kitchen or bathroom. The moisture causes solids to dissolve and become liquid in a chemical process known as deliquescence.
  “You can get complete loss of the ingredients. It depends on the conditions. It depends on the formulation. Within a very short time –in a week – you can get complete loss of vitamin C in some products that have deliquesced,” Lisa Mauer, an associate professor in food science at Purdue University is quoted as saying in an article at www.sciencedaily.com on March 2.
  According to Mauer, not even a tightly fitted bottle cap can prevent this from happening because each time you remove the lid to get out your vitamins, moisture enters the bottle.
  The only way to prevent the problem is by using blister packs that effectively seal each tablet in a moisture-resistant atmosphere. The Danish company Pharma Nord has always had a policy of manufacturing food supplements in blister packs that comply with EU and FDA requirements regarding “water vapor permeability”, as this guarantees that the tablets are not affected by moisture (or dust).
  Another advantage with blister packs is that you only get in contact with the pills that are taken out for immediate consumption. With bottled pills, you typically pour out some pills in your hand and put the remaining pills back into the bottle, exposing unused pills to germs each time.

Source: www.sciencedaily.com, March 2. 2010

Increased intakes of the omega-3 fatty acid DHA (docosahexaenonic acid) may improve mental function in middle age people, suggests a new study from the US.

Increased blood levels of DHA were associated with improved nonverbal reasoning and working memory in people between 35 and 54, but intakes of other omega-3 fatty acids ALA (alpha-linolenic acid) and EPA (eicosapentaenoic acid) were not, according to findings published in the Journal of Nutrition.

“These findings suggest that DHA is related to brain health throughout the lifespan and may have implications for clinical trials of neuropsychiatric disorders,” wrote the researchers, led by Matthew Muldoon from the University of Pittsburgh.

The potential brain boosting benefits of omega-3 have been reported by numerous studies, most recently at the Alzheimer's Association 2009 International Conference on Alzheimer's Disease (ICAD 2009) in Vienna. Scientists reported in the Austrian capital that daily supplements with the omega-3 fatty acid docosahexaenoic acid (DHA) may improve both memory function and heart health in healthy older adults. The study presented at the Alzheimer's conference was funded by Martek Biosciences.

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Supplements of multivitamins and minerals may help reduce body weight and improve blood fat levels, according to results of a clinical trial in obese Chinese women.

Results of a 26-week randomized, double-blind, placebo-controlled intervention study with 87 women found that multivitamins and minerals were associated with significantly lower body weight, body mass index, and fat mass.

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Daily supplements of magnesium may improve lung function in asthmatics, and improve their quality of life, says a new study from America. The participants were randomly assigned to receive either the a daily dose of 340 milligrams of magnesium or placebo for 6.5 months.

Measures of lung capacity increased by about 6% during six months of magnesium supplementation, and improvements were also observed in the bronchial response to methacholine, a chemical that produces constriction of the lungs, according to findings published in the Journal of Asthma.

Read the article at nutraingredients.com

Middle aged and elderly people with high blood levels of vitamin D may be at a 33 per cent lower risk of developing heart disease, says a new review from the UK.

Researchers from the University of Warwick performed the first ever systematic review and meta-analysis looking at the association between blood levels of vitamin D and cardiometabolic disorders, such as cardiovascular disease (CVD), type-2 diabetes and metabolic syndrome.

Twenty-eight studies giving data on 99,745 participants across a variety of ethnic groups including men and women were included in the meta-analysis and systematic review, published in the journal Maturitas.

“If the relationship proves to be causal, interventions targeting vitamin D deficiency in adult populations could potentially slow the current epidemics of cardiometabolic disorders,” wrote the researchers, led by Johanna Parker and Dr Oscar Franco.

Parker and her co-workers reviewed the scientific literature and identified 28 observational studies, with the majority published between 2004 and 2009. No data from clinical trials was included.

According to the analysis, the highest blood levels of the vitamin were associated with a 33 per cent reduced risk of CVD, a 55 per cent reduction in the risk of type 2 diabetes, and a 51 per cent reduction in the risk of metabolic syndrome, compared with the lowest blood levels of vitamin D.

“We found that high levels of vitamin D among middle age and elderly populations are associated with a substantial decrease in cardiovascular disease, type 2 diabetes and metabolic syndrome,” said Dr Franco.

“Targeting vitamin D deficiency in adult populations could potentially slow the current epidemics of cardiometabolic disorders,” he added.

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