Which type of fat is high in monounsaturated fat?

Question

BlackTom AI · Accepted Answer

Monounsaturated fats (MUFAs) are fats with one double bond in their fatty acid chains; the most common MUFA in foods is oleic acid, and oils high in oleic acid are classified as high in monounsaturated fat.

1. Relevant knowledge points and concepts
- Types of dietary fats: saturated, monounsaturated (MUFAs), and polyunsaturated (PUFAs).
- Food sources differ: olive oil is known for high MUFA (oleic acid); coconut oil and butter are high in saturated fat; corn oil is relatively high in polyunsaturated fat.

2. Step-by-step reasoning
- Compare each option’s typical fatty acid profile.
- Determine which option has the largest proportion of MUFAs.

3. Intermediate values and comparison
- Olive oil: predominantly MUFA — oleic acid typically makes up roughly 60–80% of its fatty acids (commonly cited near ~70%).
- Corn oil: higher in PUFAs (linoleic acid); MUFA content is substantially lower (typically ~20–30%).
- Coconut oil: overwhelmingly saturated (very low MUFA, often single-digit percent).
- Butter: contains a substantial saturated fat portion (often ~50–65% saturated) with moderate MUFA but far less MUFA than olive oil.
Comparing these approximate proportions shows olive oil has the highest MUFA percentage.

4. Why the correct answer is correct
Olive oil’s fatty acid profile is dominated by oleic acid (a MUFA), so it is classified as high in monounsaturated fat. This composition is the defining reason olive oil is the MUFA-rich choice among the given options.

5. Why the other options are incorrect
- Coconut oil: high in saturated fats, not MUFAs.
- Corn oil: higher in polyunsaturated fats (linoleic acid) than MUFAs.
- Butter: mainly saturated fat with only modest MUFA content, lower than olive oil.

6. Conclusion
Based on fatty acid profiles, the correct answer is olive oil, which matches the provided answer.

Which type of fat is high in monounsaturated fat?单项选择题

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