I only use half&half. (There are loads of discussions on this board over the use of half&half, BTW) "H" uses Equal and half&half and both of us have stayed in ketosis and lost weight. Neither of us drink more than four cups a day, and that is rare...the second two cups are on evenings when we know we are going to have a late night and children in the house. As in everything else, everyone has a different experience with it and you just have to see how it affects you personally.