Saturated fats have single bonds between Carbon but unsaturated have either double or triple bond between Carbon
Unsaturated fats, which are liquid at room temperature, are regarded as healthy fats because they can lower blood cholesterol levels, reduce inflammation, maintain healthy cardiac rhythms, among other positive effects.
Because of sigma bonds saturated have higher melting point and that is why at room temperature they exist in the solid state. For example ghee . Unsaturated fatty acids have lower melting point that is why they exist as liquid . For example oil.
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