Almond Consumption on HDL Cholesterol and CVD Risk Factors in Adults with High Cholesterol: A Randomized,...

Area of Science:

• Nutrition Science
• Cardiovascular Health
• Dietary Interventions

Background:

• Dietary modifications are crucial for managing hypercholesterolemia and reducing cardiovascular disease (CVD) risk.
• The impact of almonds on high-density lipoprotein cholesterol (HDL-C) requires further clarification.
• Understanding optimal almond intake for cardiovascular benefits is essential.

Purpose of the Study:

• To determine the almond dosage for optimal increases in HDL-C in hypercholesterolemic individuals.
• To evaluate the effects of different almond doses on CVD risk factors.
• To assess changes in Framingham Risk Score (FRS), blood pressure (BP), and other biomarkers.

Main Methods:

• Randomized controlled trial with 75 participants (25 per group).
• Intervention groups: low-dose almond (LDA; 1.5 oz/day), high-dose almond (HDA; 2.5 oz/day), and nut-free diet (NFD; control).
• Duration: 16 weeks, with assessments at baseline and weeks 4, 8, 12, and 16.

Main Results:

• No significant differences in HDL-C were observed between groups.
• Significant reductions in FRS were noted in HDA and LDA groups at 16 weeks.
• HDA group showed significant decreases in systolic blood pressure compared to NFD from week 8.

Conclusions:

• Almond consumption may support dietary strategies for improving CVD risk factors in adults with hypercholesterolemia.
• Almonds did not significantly alter HDL-C levels in this population.
• Almonds may contribute to reduced FRS and improved BP in hypercholesterolemic individuals.