While coffee grounds may be healthy in moderation, it is best to avoid consuming large quantities of them on a daily basis. Coffee grounds also carry other toxins like carcinogens and tannins, which can cause problems for those with compromised health. The World Health Organization recommends that people with diabetes or hypertension avoid coffee grounds as they may contain high levels of caffeine. We do not recommend eating coffee grounds in any form if you have diabetes or high blood pressure.