There is no general agreement among the experts on the exact causes of the growing obesity crisis in America and around the world. Easy access to inexpensive calorie-dense but nutritionally poor food and sedentary lifestyles are often named as leading factors. Our culture that promotes ever-increasing consumption my also play a role. But could it be that our eating habits can make us not only physically ill but also harm our psychological and emotional well-being?

In her book, titled “Emotional Overeating” (2012), Dr. Marcia Sirota, a Toronto-based psychiatrist who specializes in the treatment of addiction, says that constant eating, especially when it leads to weight problems, is actually a form of psychotic behavior.

“It seems as though we’ve become a society of addicts,” she says. “In particular, we’ve become a nation of compulsive overeaters, hyper-focused on everything having to do with food and eating.”

Even our efforts to control our weight through dieting can fit this pattern, says Dr. Sirota. “We’re compulsive in our eating behaviors, whether this means binge eating, restricting, purging, or a combination of all these. […] Both compulsive eating and compulsive food restricting (dieting) cause a behavioral vicious circle in which overeating leads to remorse, self-recrimination, heightened obsessions and further overeating.” The result is enormous emotional suffering, “suffering from a constant preoccupation with food and weight.”

Dr. Sirota believes that it is actually not desire for food that lies at the root of this kind of addiction but rather an inner emptiness, hurt or loss that needs to be filled. In other words, emotional eating is not about stilling hunger but numbing a pervasive state of unhappiness.

“When it comes to our relationship with food, there is much more going on than we would often assume,” says Dr. Lisa Firestone (http://www.psychologytoday.com/blog/compassion-matters/201205/whats-behind-emotional-overeating), a clinical psychologist in Santa Barbara, California. Like any addictive substance, food is often used to cover over or subdue emotional pain.”

But that’s not necessarily the case with all people who eat for emotional reasons. We should not assume that food, especially so-called “comfort food,” is only there to help us get out of a funk, when we are depressed, bored or lonely, says Dr. Brian Wansink (http://adage.com/article/american-demographics/taste-comfort-food-thought-americans-eat-feel/43135), author of “Mindless Eating – Why We Eat More Than We Think” (Bantam, 2006). Food can just as well evoke feelings of safety, love or belonging and reconnect us with happy memories of loved ones and past events. Also, most people eat more than they should when they are celebrating, when they eat out or gather at the table on holidays. Fewer than half reach for the munchies when they have the blues or the blahs, he says.

Still, he concedes, there are significant differences between physical hunger and emotional hunger. Physical hunger builds gradually and recedes when the stomach is filled. By contrast, emotional hunger arises suddenly, unrelated to the time you last ate, and it persists even after sufficient food intake, thereby often leading to overindulgence. Also, there is no negative psychological fall-out after eating in response to physical hunger. But there can be feelings of shame and guilt after bouts of emotional overeating.

Using food to satisfy our emotional needs every so often does not necessarily have to be considered problematic. “We all eat for emotional reasons sometimes,” says Jane Jakubczak (http://www.webmd.com/diet/features/emotional-eating-feeding-your-feelings), a Registered Dietitian at the University of Maryland. “When eating becomes the only or main strategy a person uses to manage emotions, then the problems arise – especially if the foods a person is choosing to eat to satisfy emotions aren’t exactly healthy.”

By dealing constructively with our emotions, we can achieve a healthy relationship with food as well, says Deborah Kotz (http://health.usnews.com/health-news/diet-fitness/brain-and-behavior/articles/2010/07/01/5-ways-to-end-emotional-overeating), a health writer from Silver Spring, Maryland. She advises people with tendencies toward emotional overeating to pay close attention to their reactions to stress, sadness or boredom. What actions can you take to avoid eating when temptation arises? Establish some rules before a craving attack takes place and follow through with your plan. Engage in activities that distract you. Avoid dieting, since it can lead to other forms of negative food addiction. The more you learn about the nature of your tendencies, the better you will be prepared to exercise restraint and stay in control when you need to.

Timi Gustafson R.D. is a clinical dietitian and author of the book “The Healthy Diner – How to Eat Right and Still Have Fun”®, which is available on her blog, “Food and Health with Timi Gustafson R.D.” (http://www.timigustafson.com), and at amazon.com. You can follow Timi on Twitter (http://twitter.com/TimiGustafsonRD) and on Facebook (http://www.facebook.com/TimiGustafsonRD).