A nurse is reinforcing dietary teaching with a client who is at 12 weeks of gestation. Which of the following statements should the nurse make?

Nutrition during pregnancy is essential for fetal growth, neural tube development, and maternal physiological adaptation. In the first trimester, appropriate intake of key micronutrients supports organogenesis and reduces the risk of congenital anomalies. Folic acid is particularly important during early gestation because it helps prevent neural tube defects such as spina bifida. Dietary recommendations are based on established prenatal nutritional guidelines that ensure both maternal and fetal health. Rationale: A. Increasing dietary intake by 500 calories per day is not recommended at 12 weeks of gestation. Caloric requirements typically do not significantly increase until the second and third trimesters, when fetal growth accelerates. Early pregnancy focuses more on nutrient quality rather than increased caloric intake. B. Limiting caffeine intake to 700 milligrams per day is incorrect because this amount is too high for pregnancy safety guidelines. Excess caffeine intake has been associated with risks such as miscarriage and low birth weight. One should limit caffeine to about 200 mg per day during pregnancy. C. Consuming 600 micrograms of folic acid daily is the correct recommendation during pregnancy. Folic acid is essential for DNA synthesis and proper neural tube formation, especially during the first trimester. Adequate intake significantly reduces the risk of neural tube defects and supports healthy fetal development. D. Eating 40 milligrams of protein-rich foods per day is incorrect because this amount is far below the recommended protein intake for pregnancy. Pregnant individuals require increased protein intake, typically about 60–75 grams per day, to support fetal tissue growth and maternal blood volume expansion. This value does not meet physiological needs.