Issue #70 (August 2020)

• Deep Dive: Does trimming the saturated fat from your diet actually lower heart disease risk?
  According to the latest Cochrane review exploring the matter: yes, especially when they're replaced with PUFAs.
• NERD Mini: Chewing the (saturated) fat
  Here are some takehomes from a recent debate exploring whether public health guidelines should push people to lower saturated fat intake as much as possible.
• Green tea for weight loss: does it really work?
  Betteridge's law of headlines doesn't hold here!
• Tortoise and the hare: Comparing the effects of weight loss speed
  This meta-analysis found that gradual weight loss led to better body composition outcomes, at least in the short term.
• Deep Dive: What happens when you eat as much as possible?
  Joey Chestnut may not have too much to worry about, but Nathan's should confirm these results by sponsoring a follow-up involving hot dogs, not pizza.
• Safety Spotlight: Higher-dose vitamin D supplementation may weaken muscles in postmenopausal women
  A 2018 study found that vitamin D supplementation weakened women's muscles. A recent follow-up explored why this may have happened.
• Deep Dive: Subtle smarts from polyphenols for middle-aged adults
  A recent meta-analysis suggests that polyphenols may impact some aspects of cognition in the short term. But that conclusion paints a picture with a really broad brush.
• NERD Mini: How much do nutrition professionals use the glycemic index?
  A recent survey explored how much U.S. nutrition professionals use the glycemic index to educate their clients and patients. We summarize some of the key findings here.
• NERD Nulls: May-June 2020
  The absence of evidence is sometimes evidence of absence!

Researchers

Wyatt Brown; Dylan T. Dahlquist, MSc, CSCS; Antonis Damianou, MSc; Brad Dieter, PhD; Rachel Hathcock, BSN, RN, CCRA; Nick Milazzo, MS(c); Katherine Pett, MS, RDN; Zad Rafi, BA; Brandon Roberts PhD, MS, CSCS; Lucas Roldos Saibene, BSc, MSc(c); Jill Ryer-Powder, PhD; Lucas Tafur, PhD

Editors

Gregory Lopez, MA, PharmD

Reviewers

Stephan Guyenet, PhD & Adel Moussa, PhD

Copy Editor

Dmitri Barvinok

Infographics

Antonius Khengdro & Calla Lee