Adolescence is a time of growth, change, and self-discovery, which can make teens especially vulnerable to developing unhealthy eating habits. Eating disorders affect people of all genders and backgrounds, and early recognition is key to helping a teen get the support they need. While not every teen who struggles with food or body image has an eating disorder, being aware of common signs can make a big difference.

One of the first things to notice is changes in eating patterns. This might include skipping meals frequently, extreme dieting, or avoiding certain foods or food groups altogether. Some teens may develop rigid rules around food, like only eating “safe” foods or counting every calorie. Others might engage in binge eating—eating large amounts of food in a short period—or purging behaviors, like vomiting or misusing laxatives.

Physical changes can also be warning signs. Rapid weight loss or fluctuations, complaints of stomachaches, fatigue, dizziness, or hair and skin changes can all be associated with disordered eating. Adolescents may also engage in excessive exercise to “compensate” for calories or burn off energy, which can put additional strain on the body.

Emotional and behavioral shifts are equally important to observe. Teens struggling with an eating disorder may become more withdrawn, anxious, or irritable, especially around mealtimes. They might express intense dissatisfaction with their body or extreme fear of gaining weight. You may notice obsessive behaviors, like constantly checking mirrors, comparing themselves to others, or seeking reassurance about appearance. Some teens may also experience mood swings, perfectionism, or heightened self-criticism.

Social changes are another potential indicator. A teen might avoid social events involving food or become secretive about eating. Friendships may shift, particularly if peers reinforce unhealthy behaviors or body image pressures. Withdrawal from activities they once enjoyed can also be a red flag.

It’s important to note that not all signs appear all at once, and some may be subtle. Paying attention to patterns over time rather than isolated behaviors can help you identify if there’s cause for concern.

If you notice these warning signs, approach the situation with care and compassion. Avoid shaming or lecturing, which can increase shame and secrecy. Instead, express concern from a place of care: “I’ve noticed you seem stressed about food lately, and I want to support you.” Encouraging a conversation with a trusted healthcare provider, school counselor, or therapist is an important next step. Early intervention can make a significant difference in recovery.

Finally, remember that eating disorders are serious mental health conditions—not choices or phases. They often coexist with anxiety, depression, or other struggles, which is why professional support is crucial.

By recognizing early warning signs and responding with understanding, parents, caregivers, and friends can help adolescents get the help they need before the disorder progresses. Being observant, supportive, and compassionate can save lives—and create a foundation for healthier relationships with food and body image.