This is from that link
Add 1/2 teaspoon of brown sugar (the one used for cooking) to 1 oz of cooled boiled water. Offer this to your baby 3 times a day, directly before formula feeds, until his poop is soft and then stop.
*Although brown sugar is recommended because it contains molasses, white sugar would do.
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Don't add the sugar to the regular bottle - baby may then only want bottles with sugar in them... give a separate bottle with 1 oz of water with 1/2 tsp sugar... as above.