@Rebel - Full blood workup including full Thyroid panel (full panel no just what the normal vet workup that is not a full thyroid panel)... as they say make sure that he is in good health. Also what are you feeding him? How much total are you feeding a day? Also with reducing food, add veggies to his food to fill his belly... green beans are good to use... I use Cauliflower and Broccoli... Note also that low normal is typically too low for Basenjis.
@mryltis
Read this comment from @morgansc within this post dated May 30, 2019, 7:49 AM. It answers your question. Ideally it is best to wait until age 24 months but no early than 18 months.
https://basenjiforums.com/post/177284
