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Reviewing Seed Oils: Scientific Evidence Vs Popular Beliefs

Content Editor: Dr. Sampriti

June 18, 2025 at 3:42:49 PM

International health news, Nutrition, Cardiovascular Health

Content Editor: Dr. Sampriti
  • Nutrition scientists have refuted claims that refined seed oils like canola, corn, soybean, sunflower, safflower, grapeseed, cottonseed and rice bran harm health. These oils contain essential polyunsaturated fats including linoleic acid (omega-6) and alpha-linolenic acid (omega-3), which in moderation benefit cardiovascular and metabolic health.

  • A 2019 meta-analysis of 68,000 participants across 30 studies found higher blood linoleic acid levels correlated with reduced risk of cardiovascular disease, stroke and type 2 diabetes, showing a 35% lower diabetes risk.

  • Trials have shown linoleic acid lowers LDL cholesterol, increases HDL cholesterol and may reduce blood pressure.

  • Concerns about omega-6 causing inflammation or hexane residues are unfounded, as inflammatory metabolite conversion in humans is minimal. Experts recommend whole foods and plant oils over saturated fat alternatives for heart health.

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