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Twelve recent research studies on diet, psychological symptoms & wellbeing (2nd post): magnesium, zinc, folate, fish & selenium

I wrote a post a couple of days ago entitled "Twelve recent research studies on diet, psychological symptoms & wellbeing (1st post): overall dietary quality & depression".  I said that glancing back over recent research studies that I have noticed & downloaded to my personal database, I was struck by a whole series on the effects of diet on psychological state.  I've listed twelve that caught my eye in the last several months - the first post gave half a dozen on overall dietary quality & depression, whereas this post focuses more on specific dietary components.

Recent research: 3 studies on diet & (cardiovascular) health, 2 on fish oil, dementia & postpartum depression, and 1 on walnuts!

Here are half a dozen studies on diet (see below for all abstracts and links).  The first three are about the benefits of healthy lifestyle.  Trichopoulou & colleagues evaluated the contribution of nine widely accepted components of the Mediterranean diet (high intake of vegetables, fruits and nuts, legumes, fish, and cereals; low intake of meat and dairy; high ratio of monounsaturated to saturated lipids; and moderate intake of ethanol) in the inverse association of this diet with all cause mortality.  They concluded that "The dominant components of the Mediterranean diet score as a predictor of lower mortality are moderate consumption of ethanol, low consumption of meat and meat products, and high consumption of vegetables, fruits and nuts, olive oil, and legumes.

Recent research: seven studies on diet, supplements & smoking

Here are a couple of studies on smoking, a couple on B vitamins, a couple on vitamin D, and an intriguing study on iron.  The smoking papers underline the varieties of damage this habit produces.  So the Pasco et al study shows that, for women, being a smoker is associated with double the risk of developing subsequent major depression.  The Strandberg research challenges any notion of "Eat, drink and be merry for tomorrow we die".  This study of 1658 men reports that "During the 26-year follow-up of this socioeconomically homogeneous male cohort, HRQoL (quality of life) deteriorated with an increase in daily cigarettes smoked in a dose-dependent manner.

Draft SIGN non-pharmacological depression treatments guideline, 3rd post: herbs & supplements

This is the third in a series of blog posts on last Wednesday's SIGN draft guideline seminar on "Non-pharmacological management of mild to moderate depression."  The first session of the day was on "Lifestyle and Alternative/Complementary Therapies 1".  Yesterday's blog discussed the first presenter, Ian Ross's talk on the value of exercise in depression.  The second presentation was by Cliff Sharp, a psychiatrist from NHS borders.  He reviewed St John's Wort & Dietary Supplements.  He talked about the possible value of folate in treating depression when used to supplement conventional antidepressants.  He concluded that current evidence was insufficient to determine whether folate boosts response for those on antidepressants only if their initial folate levels are low, or whether it boosts response for anyone taking antidepressants.  See an

  • Common sense isn’t common

    Common sense isn’t common, at least with healthy behaviours. The vast majority of us know that we should eat sensibly, be a reasonable weight, exercise regularly, not abuse alcohol, and avoid smoking. Do you know what percentage of people actually follow all this obvious advice? A survey (Reeves and Rafferty 2005) of over 153,000 US adults in 2000 found that only 3% ticked all four boxes when asked if they didn’t smoke, were a healthy weight (body mass index, calculated as weight in kilograms divided by square of height in meters, 18.5 to 25.0), consumed 5 or more portions of fruit and vegetables daily, and exercised in leisure time for at least 30 minutes, 5 or more times per week (this includes brisk walking).

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