Depending on what stage of the diet you are on, you can. In the elimination phase, I would consume with caution. Canned black beans are better than dried black beans. The fructans leech into the bean liquid, which will wash away when the canned black beans are rinsed. Rinse them and then rinse them again. Monash University has marked black beans as safe at 40 grams or ⅙ cup. Use them as a garnish versus an entire side. As always, listen to your gut and modify as necessary.