Final answer:
The best source of protein among the options presented for a lactating client is eggs, as they contain all essential amino acids and have a high nutritional value. Other good sources include lentils and yogurt, but white bread has lower protein content relative to these sources.
Step-by-step explanation:
The student's question about which food is the best source of protein for a lactating client is focused on the nurse's recommendation. Among the options provided (eggs, lentils, yogurt, and white bread), the best source of protein in general would be eggs. Eggs contain all essential amino acids and have a high nutritional value. They are a complete source of protein, with values ranging from 98-100%. Although lentils are also a significant source of protein and suitable for vegans, eggs typically have a higher concentration of complete protein. Yogurt, depending on its type, can be a good source of protein as well but might vary greatly in protein content, while white bread has protein but is not as rich a source compared to eggs or lentils.
To improve nutrient intake and health benefits, a variety of protein foods should be included in the diet. Foods such as legumes, nuts, dairy products, and eggs are excellent sources. The specific needs of the lactating client should also be considered, along with their dietary preferences and any potential restrictions.