The antonyms for "ate sparingly" are "ate excessively," "binged," "devoured," "overindulged," "gorge," "binge eat," and "gobbled up." These words refer to consuming too much food or indulging in gluttony. Eating excessively can lead to various health problems such as obesity, heart diseases, and digestive issues. On the other hand, eating sparingly means consuming a reasonable amount of food, which can keep the body healthy and disease-free. It is important to practice moderation and self-control when it comes to food intake. Eating a well-balanced diet and exercising regularly can help maintain a healthy weight and promote overall well-being.