In such cases, food becomes a substitute for love. This means that even if no one else ever loved you, God has always loved you, loves you now, and always will love you. His love for you is so great and so perfect that it can bridge the gap between the love you needed as a child and the love you received. Ask Him to bridge that gap. As God begins to satisfy your hunger for love, you will stop looking to food to satisfy that hunger.
People often overeat because, deep down, they hate themselves.
Subconsciously, they may even harbor a secret death wish and overeat to achieve that goal. People who hate themselves do not realize how precious they are in God's eyes no matter who they are or what they have done. God loved you so much that He gave His most precious gift, His only Son, Jesus Christ, so that you could have eternal life after you die and abundant life here and now. In giving you Jesus, God gave you the highest token of His love. This should convince you of your great worth in His eyes.