In basic nutrition, which of the following are considered healthy sources of dietary fats for the human body when eaten in moderation?

Introduction / Context:
Dietary fats are an essential part of human nutrition. They provide energy, support cell membranes, and help in the absorption of fat soluble vitamins such as A, D, E, and K. However, many people associate fats only with health risks and forget that some foods contain healthier forms of fat that are beneficial when eaten in moderation. This question checks whether you can recognize common foods that are good sources of fats and that fit into a balanced diet when consumed sensibly.

Given Data / Assumptions:

• The question asks about “good sources of fat” rather than harmful or excessive fat intake.
• The listed foods are fish and eggs, nuts, and cheese.
• We assume normal dietary guidelines that emphasize moderation and variety.
• The aim is to identify whether one or all of these foods can be considered beneficial sources of fats.

Concept / Approach:
Fats come in different types, including saturated fats, unsaturated fats, and trans fats. Health guidelines usually encourage more intake of unsaturated fats, especially monounsaturated and polyunsaturated fats, while limiting trans fats and excessive saturated fats. Fish, particularly fatty fish, are rich in omega 3 fatty acids, which are heart friendly. Nuts provide unsaturated fats along with fiber, vitamins, and minerals. Cheese contains fats and proteins plus calcium, and when eaten in moderate portions, it can be part of a healthy diet. Since all three food groups supply useful fats and nutrients, they can be considered good fat sources in appropriate quantities.

Step-by-Step Solution:
1. Consider fish and eggs. Many fish, such as salmon and mackerel, contain omega 3 fatty acids that support heart and brain health. Eggs provide fats, high quality protein, and important micronutrients.2. Consider nuts. Foods like almonds, walnuts, and cashews are rich in unsaturated fats, as well as fiber and antioxidants, which can help maintain healthy cholesterol levels.3. Consider cheese. Cheese is a source of fat, protein, and calcium. Although it can be high in saturated fat and salt, moderate portions can fit into a balanced diet.4. All three options provide fats that the body can use, along with other nutrients, when eaten responsibly.5. Therefore, the correct answer is that all of the listed foods are good sources of fats for the body in moderation.

Verification / Alternative check:
Dietary guidelines from many health organizations emphasize choosing a mix of protein rich foods, including fish, eggs, dairy products, and plant sources like nuts and seeds. They highlight the benefits of omega 3 fats from fish and unsaturated fats from nuts in particular. While they often warn about excessive intake of full fat cheese, they still include limited portions of cheese as part of a varied diet. This shows that each of the foods listed can contribute healthy fats when overall calorie intake and portion sizes are controlled. Thus, an answer that includes all three food types is consistent with balanced dietary advice.

Why Other Options Are Wrong:
Option A, “Fish and eggs,” is only partially correct because it ignores nuts and cheese, which are also recognized sources of fats. Option B, “Nuts,” is also incomplete because fish, eggs, and cheese provide important fats and nutrients. Option C, “Cheese,” alone is not sufficient, and focusing solely on cheese might overlook the valuable omega 3 fats in fish and the healthy unsaturated fats in nuts. Therefore, choosing any single food group misses the broader range of healthy fat sources presented in the options.

Common Pitfalls:
A common mistake is to label all fatty foods as unhealthy. In reality, the type of fat and the portion size make a big difference. Another pitfall is ignoring the nutrient density of foods like nuts and fish, which provide healthy fats along with proteins, vitamins, and minerals. Students may also hesitate to include cheese due to its saturated fat content, but this question emphasizes good sources of fat when eaten in moderation, not excessive consumption. Remember that balanced diets typically include a variety of fat sources rather than eliminating them entirely.

Final Answer:
All the listed foods can act as beneficial fat sources when eaten in sensible amounts, so the correct answer is All of the above.