You did not fail the diet. The hunger came back louder.

The diet ended. Hunger did not go back to how it was. It got louder. You called that failure.

You did not fail the diet. After a hard cut, yo yo dieting hunger can stay high. In a 2011 study of 50 people, hunger was still higher a year after the diet.

They had been on a very-low-energy diet for 10 weeks. Mean loss was 13.5 kg, about 30 pounds. Ghrelin, a hormone that pushes you to eat, went up. Leptin, a hormone that helps you feel fed, went down. One year later those signals had still not returned to the old levels. People still rated themselves hungrier than before they started.

That is the rebound. The body treats lost weight as a problem to solve. You feel it as a louder pull toward food.

NIDDK researchers later measured how hard that pull is. In a year-long trial, people who lost weight without trying to diet ate about 50 extra calories a day for each pound they had lost. Appetite rose. Loss flattened around six months.

You were told to try harder. Skip the snack. Drink water. That advice treats a loud appetite as a test.

What yo yo dieting hunger is doing

Restriction is the cut. The rebound is what follows. The scale can drop for weeks. Then food comes back. Hunger does not settle at the old volume. It can sit higher. That loop is what people name yo-yo.

The 2011 study also found other fullness signals still down a year later. Peptide YY was lower. So was cholecystokinin. Those are gut hormones that help you stop eating. When they stay low, a meal that used to be enough can feel unfinished.

NIDDK says losing weight very quickly can raise the chance of gallstones. So can a very-low-calorie diet. Weight cycling, losing and then regaining, can raise that chance too. The bigger the swing, the higher the risk. NIDDK tells people to stay away from crash diets that promise a fast drop. For people with overweight or obesity, experts often start with 5 to 10 percent of starting weight over about 6 months.

People who try a shot after that cycle often land in big online programs. Public 1-star and 2-star samples of those programs pile up around bills that did not match the ad. Chats that never produce a person. Boxes that never arrive. A smaller share say the medicine did not change anything they could feel. Angry people post. Satisfied people mostly do not. Those samples are angry pages, not all customers.

Hunger can stay high a year after the food comes back.

A GLP-1 may change the signal

A GLP-1 medicine acts on appetite signals. NIDDK says some weight medicines may help you feel less hungry or full sooner. They do not replace eating habits or activity. After 1 year, adults on a prescription weight medicine plus a lifestyle program lose 3 to 12 percent more of starting weight. That is versus people in a lifestyle program who do not take the medicine. Results vary by person. NIDDK also says you probably will regain some weight after you stop.

If you do not lose at least 5 percent of your starting weight after 12 weeks on the full dose, your clinician will probably advise you to stop. Some people feel little change. A clinician decides if a GLP-1 fits you. Compounded copies are not FDA-approved brand pens.

Do not punish the rebound with another crash week. Eat the next normal meal. Then tell a licensed provider what the last diet did to hunger, how long the cut lasted, and whether a shot changed anything you could feel.

At Living+ each month includes a personal coach. Unlimited provider visits. Two coaching sessions a month. No separate visit fee. Some people still feel nothing. Talk to your provider before you start the next cut.

Sources

• Sumithran et al.: Long-term persistence of hormonal adaptations to weight loss
• NIDDK: Weight Loss Leads to Strong Increase in Appetite
• Polidori et al.: How strongly does appetite counter weight loss
• NIDDK: Prescription Medications to Treat Overweight and Obesity
• NIDDK: Dieting and Gallstones