I also had gestational diabetes when I was 6 months' pregnant. Since the degree was so high, I need to do blood sugar test 4 times a day right afterwards. The OB sent me to dietitians for advice on my diet. After I followed the dietitian' advices, I was able to control my blood sugar but I had lost 3 lbs in the first week I changed my diet. The trick is to control intake of carbonhydrates and starch. Instead of 3 big meals per day, I ate 3 smaller meals and have 3 snacks per day in between the meals. Unlike the common understanding, I need to have a light breakfast like 1 bowl of oatmeal, 1 egg (prefer hard-boiled), no milk or juice, no fruit because the blood sugar in the morning is hard to control. Lunch or dinner should be 2/3 bowl of rice, meat and a lot of vegetable. Snacks should be taken after 2-3 hours after each meal, it can be 1 cup of fruit (grapes, cantalope, melon, strawberries, apple, orange, pear, etc.) or 1/2 banana, 1 oz of cheese, 4 walnuts or 1/2 cup of cashew, almond, 8 oz of milk (low fat is better than whole milk). Do not take any food during midnight even though you are hungry and awake.
If you can control your blood sugar through diet, you don't have to worry. Otherwise, the next thing the doctor would ask you to do is injection of insulin which is really painful. I'm lucky that I controlled my blood sugar quite effectively through diet. Diabetes can really be harmful to both baby and mother. Baby can be overweight then C-section may be necessary (but I controlled my weight gain good so that I could give born to my daughter naturally and she's not too fat - 7 lb 5 oz). Also, it increases the chance of having diabetes for both the baby and the mom. If the blood sugar is not controlled well, the baby may have brain development problem and low blood sugar after birth. So, just be a little bit more careful and you and the baby should be fine.
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