Offer emotional support, encourage healthy habits, and suggest seeing a doctor or dietitian. If you have any further questions or need more clarity, please consult with a psychiatrist. If you`re in Texas, we welcome you to reach out to www.MidCitiesPsychiatry.com, we`re here to help you.

Have her do some routine blood test to find out she has hypothyroidism. May be she has slow metabolism. After basic blood work have her see a Doctor who has expertise in weight loss. We do have weight loss programs in our office.

Do not shame them, but explore any stress, or anxiety, and help treat the underlying cause. Also promote calorie control and healthy diet practices.

Take look at this link,https://www.heart.org/en/healthy-living/healthy-eating/losing-weight/extreme-obesity-and-what-you-can-do , https://healthfully.com/how-to-help-obese-people-5248032.html