Fats & Omega-3脂肪与 Omega-3

Place · Level 3

三大类 · 两种必需 · 细胞膜的建材 · ω-3/ω-6 平衡决定炎症基调

Three families

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三大类脂肪

Fatty acids sort into families by the number of C=C double bonds in the carbon chain:

Saturated (SFA) — 0 double bonds, straight chains stack easily → solid at room temperature (coconut oil, animal fat, dairy fat); chemically stable and oxidation-resistant, but sustained high intake raises .Monounsaturated (MUFA) — 1 double bond, one kink → olive oil, avocado, nuts. Mediterranean-diet staple, near-uncontested 'good fat'.Polyunsaturated (PUFA) — 2+ double bonds, flexible → highest fluidity (fish oil, flax, sunflower), but more double bonds = more oxidation-prone — which is why flaxseed oil can't be used for high-heat cooking.
Trans fats (hydrogenated vegetable oils) are the only class to 'avoid at all costs' — straight-chain pseudo-saturated, disrupting membrane function, strongly linked to cardiovascular disease, with no healthy dose.

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本站提供科普与一般性建议，不替代医师诊断或处方；有症状或正在服药请咨询合格医师。 Educational content, not medical advice — consult a clinician for diagnosis or treatment.

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Fats & Omega-3脂肪与 Omega-3

Place · Level 3

三大类 · 两种必需 · 细胞膜的建材 · ω-3/ω-6 平衡决定炎症基调

Three families

Stop 1/6

三大类脂肪

Fatty acids sort into families by the number of C=C double bonds in the carbon chain:

Saturated (SFA) — 0 double bonds, straight chains stack easily → solid at room temperature (coconut oil, animal fat, dairy fat); chemically stable and oxidation-resistant, but sustained high intake raises .Monounsaturated (MUFA) — 1 double bond, one kink → olive oil, avocado, nuts. Mediterranean-diet staple, near-uncontested 'good fat'.Polyunsaturated (PUFA) — 2+ double bonds, flexible → highest fluidity (fish oil, flax, sunflower), but more double bonds = more oxidation-prone — which is why flaxseed oil can't be used for high-heat cooking.
Trans fats (hydrogenated vegetable oils) are the only class to 'avoid at all costs' — straight-chain pseudo-saturated, disrupting membrane function, strongly linked to cardiovascular disease, with no healthy dose.

Read story

本站提供科普与一般性建议，不替代医师诊断或处方；有症状或正在服药请咨询合格医师。 Educational content, not medical advice — consult a clinician for diagnosis or treatment.