Final answer:
Coconut oil has the most saturated fat compared to palm kernel oil, peanut oil, and olive oil. It contains a high amount of low-melting point saturated fatty acids, making it solid at room temperature and associated with higher LDL cholesterol levels.
Step-by-step explanation:
The food with the most saturated fat among the options given is coconut oil. Coconut oil is known to be highly saturated and contains a significant amount of low-melting point saturated fatty acids such as C8, C10, and C12. This composition makes it solid at room temperature, unlike most other vegetable oils which contain a higher proportion of unsaturated fatty acids and are liquid at room temperature. In contrast, peanut oil and olive oil are higher in unsaturated fats and thus are typically liquid at room temperature and considered healthier for consumption. Palm kernel oil also has a high amount of saturated fats but not as high as coconut oil.
It's important to note that the consumption of high amounts of saturated fats is associated with an increased risk of heart disease due to the elevation of LDL ("bad") cholesterol levels in the blood. Therefore, healthier diets usually include lower amounts of these fats and higher amounts of unsaturated fats found in vegetable oils, fish, nuts, and avocados.