Any Low Carb Followers: Question

Does anyone know of any good supplements to take? I lost weight very quickly in the beginning and I now take hoodia, drink 8-10 glasses of water, bike each morning, and follow low carb strictly...I feel like I am stuck

Any good supplements that might help? Any ideas? I am definitely staying on Atkins, because I love it and I am losing verrry slowly (i lost inches), but I need to amp it up! Also thinking of personal training or exercise classes? HEEELLLPPP!