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Soybean Oil

Listed as a source of omega-3 ALA (0.31 g per 1 tsp) and vitamin E (1.1 mg per 1 tbsp, 6% DV)

Why It Matters for Longevity

Listed as a source of omega-3 ALA (0.31 g per 1 tsp) and vitamin E (1.1 mg per 1 tbsp, 6% DV) Plant oil with ALA omega-3 and vitamin E. Soybean oil has an omega-6 to omega-3 ratio of ~7:1; excessive use relative to olive oil may promote inflammation; canola or walnut oil provide better omega-3 balance (PubMed) Soybean oil vitamin E (primarily gamma-tocopherol) has antioxidant properties; however, high linoleic acid content may increase lipid peroxidation at cooking temperatures (PubMed)

How to Use It

Pairs well with vegetables, tofu, salad greens. Use as a oil in your daily meals according to the Longevity Diet guidelines.

What to Pair It With

Ingredient Why Tradition
vegetables See synergies traditional
tofu See synergies traditional
salad greens See synergies traditional

Synergies

  • Olive Oil (antagonism): Olive oil is the preferred cooking fat in Longevity Diet; soybean oil's high omega-6 content makes it a less favorable alternative - Omega-3-Fatty-Acids (complement): ALA in soybean oil contributes modestly to omega-3 status; best used sparingly alongside marine omega-3 sources - Walnut-Oil (complement): Both are plant-based omega-3 containing oils; walnut oil has a more favorable omega-6:omega-3 ratio

Flavor Profile

Taste: neutral, very mild. Aroma: neutral, faintly beany. Texture: liquid, light. Category: cooking oil.

The Science

  • PubMed: Soybean oil has an omega-6 to omega-3 ratio of ~7:1; excessive use relative to olive oil may promote inflammation; canola or walnut oil provide better omega-3 balance - PubMed: Soybean oil vitamin E (primarily gamma-tocopherol) has antioxidant properties; however, high linoleic acid content may increase lipid peroxidation at cooking temperatures - Book claim (medium confidence): Listed as a source of omega-3 ALA (0.31 g per 1 tsp) and vitamin E (1.1 mg per 1 tbsp, 6% DV)

Key Nutrients

Nutrient Per 100g Notes
ALA (omega-3) 6.8 g Plant form; ~5–15% conversion to EPA/DHA; lower efficacy than marine omega-3s
Linoleic acid (omega-6) 51 g Very high omega-6; unfavorable ratio when used as primary cooking oil
Vitamin E 8.2 mg Primarily gamma-tocopherol; antioxidant; degrades with high-heat cooking