The American College of Ob/Gyn makes the following suggestions during pregnancy::

• Add 100-300 cal/day to your diet (300 calories is equivalent to a small snack-for example, ½ peanut butter and jelly sandwich and 1 glass low fat milk)
• Daily amount of Grains – 6 ounces
• Vegetables – 2 ½ cups
• Fruit – 1 ½ – 2 cups
• Meat/Beans – 5 – 5 ½ ounces
• Normal weight gain for underweight person – 28-40 pounds
• Normal weight person – 28-35 pounds
• Overweight person – 15-25 pounds
• Obese person – 15 pounds
• With twins – 35-45 pounds
• Avoid unpasteurized cheese/milk, raw/undercooked meat or fish, deli meat -unless it has been re-heated until steaming.
• Avoid the following fish: shark, king mackerel or tile fish and if eating tuna, eat canned albacore light tuna. Limit fish to 2 meals per week.