Nut intake is tied to reduced CVD death in DM

  • Liu G & al.
  • Circ Res
  • 19 Feb 2019

  • curated by Emily Willingham, PhD
  • Clinical Essentials
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Takeaway

  • Eating more nuts might help people with diabetes mellitus (DM) reduce their cardiovascular disease (CVD) and mortality risk.
  • Peanut butter is included.

Why this matters

  • These authors call the findings “novel evidence” supporting adding nuts to the diet, although a previous study has linked nut intake to reduced CVD risk in the general population.

Key results

  • Eating 5+ servings (serving=28 g)/week vs
    • CVD incidence: 0.83 (0.71-0.98; Ptrend=.01).
    • Coronary heart disease incidence: 0.80 (0.67-0.96; Ptrend=.005).
    • CVD mortality: 0.66 (0.52-0.84; Ptrend<.001>
    • All-cause mortality: 0.69 (0.61-0.77; Ptrend<.001>
  • Tree nut intake was linked to reduced risks across the board, but peanut consumption only to reduced all-cause mortality.
  • No effects on stroke incidence, cancer mortality.
  • Nut consumption before DM diagnosis was also linked to risk reductions.

Study design

  • Prospective analysis; 16,217 people with DM, Nurses’ Health Study/Health Professionals Follow-Up Study.
  • Nut intake via questionnaire.
  • Funding: NIH. 

Limitations

  • Observational, so no causation established.
  • Nut intake via self-report.

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