A client who is 12 weeks pregnant and experiencing nausea and vomiting is receiving teaching from a nurse. Which of the following statements should the nurse include in the teaching?

The correct answer is B: 'You should avoid consuming liquids with your meals.' This advice is essential because avoiding drinking liquids with meals can help prevent overdistension of the stomach, which can worsen nausea. Option A is incorrect because eating foods high in protein before bedtime may not directly address the issue of nausea and vomiting. Option C is incorrect as eating three large meals a day may exacerbate nausea due to overeating or having an empty stomach for an extended period. Option D is incorrect as consuming caffeine can actually worsen nausea in pregnant clients.