"The truth is rarely pure and never simple"   Oscar Wilde 

I like the American Journal of Clinical Nutrition (AJCN).  It comes out monthly and nearly always has an article or two that I find interesting and helpful.  The AJCN May edition produced a bumper crop.  Interesting articles included a report by Chen and colleagues (see below for all abstracts) on the effects of encouraging people to reduce their consumption of sugar-sweetened beverages (SSB).  In the 810 US adults they studied, 19% of total daily energy intake came from drinks.  They found "A reduction in liquid calorie intake had a stronger effect than did a reduction in solid calorie intake on weight loss. Of the individual beverages, only intake of sugar-sweetened beverages (SSBs) was significantly associated with weight change. A reduction in SSB intake of 1 serving/d was associated with a weight loss of 0.49 kg ... at 6 mo and of 0.65 kg ...

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.

A GP friend recently asked me about taking folic acid supplements.