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Gave Up Sugar But Still Can't Lose Weight? 9 Hidden Reasons Why

insulin resistance Oct 27, 2026

"I gave up almost all sugar and still can't lose anything. I eat natural foods. Nothing! What is wrong? I lost 63 pounds on Weight Watchers eating fat-free, but my inflammation got worse. So I gave up sugar, and I've gained 20 pounds."

This is one of the questions I answered on Tea Talk, my live morning show. Maybe you feel the same way. You're doing everything "right," and the scale won't move. Or it's going up!

That is so frustrating. But there is always a reason. Let me walk you through how I would look at this if she came to see me as a patient.

First, the questions I would ask

Every good plan starts with a good history. I would want to know your age, and for women, whether you are before, during or after menopause. Hormone changes can make weight much harder to lose. I would ask how fast the 20 pounds came on, and how active you are now.

Then I would ask you to tell me everything you ate and drank in the last 24 hours. Every meal. Every snack. Every drink. How many teaspoons of sugar went into your coffee.

Why so much detail? Because the answer often hides in the little things. Here is what I look for.

1️⃣ Starch is still sugar

You may have cut out sweets, but what about starch? Picture sugar as two pearls stuck together. Starch is made up of long strings of pearls, and every pearl is glucose. When your body breaks starch down, you get 100% glucose.

Natural and organic doesn't change that. A plate heavy on bread, rice, potatoes or even starchy vegetables like beets and carrots still raises your blood sugar and your insulin. And insulin is the fat storage hormone.

The order you eat your food matters too. Eat your vegetables and protein first, and your starch last.

2️⃣ You may be eating too little

This one surprises people. If you only eat tiny meals, your body doesn't know when its next meal is coming. So it holds on to everything it has.

I used to run an Eat More, Weigh Less challenge. One nurse didn't believe me at first. She started eating more real food, with natural fat and lots of vegetables, and she lost 5 pounds in two weeks!

3️⃣ Liquid sugar is hiding in your cup

"No added sugar" juice is still a very concentrated sugar. It takes four or five apples to make one tall glass of apple juice. You would never eat five apples in one sitting, but you can drink them in a minute.

4️⃣ The little extras add up

I once had a patient who ate healthy all day. His wife cooked everything from scratch. But he couldn't lose the last bit of weight. The reason? He treated himself to ice cream every night, right before bed, while sitting on the couch watching TV.

One small habit, every single day, can undo a lot of good work.

5️⃣ A food sensitivity may be keeping you inflamed

Some people react to certain foods or additives, like carrageenan or maltodextrin, even in "healthy" packaged foods. It's not a classic allergy. But it can cause silent inflammation in your gut.

Think of how your skin turns red and puffy when it touches something that bothers it. Now picture that happening inside your gut, where you can't see it. You might notice bloating, belly pain, diarrhea, constipation or rashes.

That ongoing inflammation is a stress on your body. Stress raises cortisol, a hormone that tells your liver to release sugar. If you don't burn that sugar, your body stores it as fat, often around your belly.

6️⃣ Your sleep isn't restful

Poor sleep is another big stress on your body. Sleep apnea is a common cause. Your breathing pauses again and again through the night, and your oxygen drops. That makes weight loss much harder. Some medicines and habits can hurt your sleep too.

7️⃣ You lost muscle when you lost weight

Fast weight loss often takes muscle with it. Your muscles are one of the biggest users of energy in your body, even when you rest. Less muscle means you burn less. So you can eat the same amount as before and still gain weight.

8️⃣ Your liver may be fatty

A fatty liver is an insulin resistant liver, and that makes weight loss very hard. The good news? A fatty liver can improve with the right changes.

9️⃣ Your medicines may be working against you

Many medicines can cause weight gain or make it harder to lose. These include some antidepressants and other mental health medicines, insulin and some diabetes pills like glipizide. Repeated short courses of steroids for inflammation can add weight too.

Never stop a medicine on your own. But do ask your doctor whether one of yours could be part of the problem.

The tests I would order

Questions tell me a lot. Tests help me tie it all together. I would check:

  • Fasting insulin. I like to see it under 5. Over 10 tells me insulin resistance is a real problem, and close to 20 means it's significant.
  • Fasting glucose. With fasting insulin, it lets me calculate HOMA-IR, a measure of how insulin resistant you are.
  • Thyroid tests. Your thyroid is a big regulator of your weight and metabolism.
  • C-reactive protein. This shows how much inflammation is in your body.
  • Food sensitivity testing. A blood test that can point to foods worth removing while your gut heals.

In medical school, my professors taught us to look for the one root cause that ties all the problems together. I still work that way today.

Bottomline?

If you've cut sugar and the scale still won't budge, you are not failing. Something else is in the way. Find it, fix it, and your body can start letting go of the weight.

Some people would just start a GLP-1 shot. But not everyone wants a quick fix or another medicine. Many people want to get to the root cause, and that's exactly what I do.

Want help with this? Request a consultation. I see patients by video in Mississippi, Alabama, Tennessee, Louisiana, Idaho, Oregon and Antigua & Barbuda.

Your health is your wealth!

Dr. Amina