There are other ways to become a "human being", and among them is to eat as a human being, and not as a gluttonous animal.
Rebbe Zev of Zhitomir zt'l once looked out his window and said, "I see a cheese blintz running down the street." The chassidim looked out the window, wondering what their Rebbe was referring to, but all they saw was a yungerman running down the street with his tallis and tefillin tucked under his arm. The Rebbe explained, "That man's mother-in-law made cheese blintzes this morning and told him to daven quickly, so he could eat them while they’re hot. The Baal Shem Tov zt'l teaches that a person is where his thoughts are. Therefore, since this yungerman was so excited about the cheese blintzes, that's how he appeared to me."
Reb Hillel Kolemaia zt'l was visiting Rebbe Avraham Yaakov of Sadigura zt'l. When Reb Hillel was getting ready to leave, the Sadigura Rebbe said, "Reb Hillel, you are renowned for your mussar lessons. Please give me some mussar." Reb Hillel Kolemeia asked, "Why doesn’t the Rebbe give mussar to his chassidim?" The Rebbe replied, "I teach my chassidim to eat properly. If they do that, their deeds will automatically be good."
It states in this week's parashah (15:31) מטמאתם ישראל בני את והזרתם, "You shall separate Bnei Yisrael from their tumah." The Sfas Emes (Tazria 5643 and Metzorah 5646) says that the root of the word והזרתם is זר, which means crown. This teaches us that when you separate from the impurity of this world, that becomes your crown. Furthermore, the Sfas Emes teaches that if you fall into aveiros, r'l, and then you separate yourself from them, והזרתם, the aveiros and tumah themselves and become your crown. This is based on the principle that when one does teshuvah, his aveiros become virtues. Thus, והזרתם, he receives a crown, מטמאתם, through the aveiros and tumah.
