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Issue #54 (April 2019)

Letter from the Editor

Articles in this issue

  • Mini: What’s magnesium good for?
    In this Mini, we give a quick summary of a recent umbrella review's findings concerning which of magnesium's many purported effects are most well supported by the evidence.
  • Investigating arginine for erectile dysfunction
    The amino acid L-arginine is used to make nitric oxide, a potent vasodilator which could possibly help mitigate erectile dysfunction. But does it?
  • Does physical activity prevent depression or does depression prevent physical activity?
    The evidence is pretty clear that depression and low physical activity are correlated. This Mendelian randomization study explored whether this link is causal, and in which direction the causal arrow points.
  • A D-fence against cancer?
    This recent meta-analysis examined whether vitamin D supplementation influenced the risk of getting, and the risk of dying from, cancer. It incorporates the latest research into the matter, including VITAL.
  • Does cinnamon spice up weight loss?
    There are some mechanistic reasons to think that cinnamon may help shed some pounds. This recent meta-analysis found an effect, but the significance of its impact is open to question.
  • Mini: Folic acid intake and neural tube defects
    Neural tube defects are potentially serious problems for developing embryos. Its risk is lowered, but not eliminated, by mothers-to-be getting enough folic acid. This Mini explores a recent meta-analysis examining how folate levels are impacted by folic acid intake.
  • The (mild) health risks of energy drinks Open Access
    Energy drinks can make a small, potentially negative impact in certain metabolic measures in young, relatively healthy people. But do these changes really matter?
  • Peppermint oil soothes symptoms of irritable bowel syndrome
    Enteric coated peppermint oil may help relieve some of the symptoms of IBS according to this recent meta-analysis, at least in the short term.
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