While cinnamon is generally considered safe for consumption in moderate amounts, high doses of cinnamon, particularly the cassia variety, can potentially cause liver damage, blood thinning, and low blood sugar in certain individuals. Pregnant women and those with specific medical conditions should exercise caution and consult with healthcare professionals before incorporating cinnamon into their diets or wellness routines. The recommended daily intake of cinnamon is typically between 1/2 to 1 teaspoon, with a maximum of 3 teaspoons per day.