‘Weight Loss Has Never Been About Calories’: How This Low-Insulin Diet Helped Lillie, 58, Drop 70 Lbs!
Stop the insulin spike and melt belly fat! Meet the doctor proving hormones beat calories—and see the real results
Weight loss science has evolved a lot in recent years. It’s no longer about calories in, calories out. Now, promising new research focuses on the power of lowering insulin levels to shed unwanted weight. Keep reading to learn how everyone, not just those with diabetes, can benefit from following a low-insulin diet plan. Don’t miss insider advice from the woman pioneering this research, along with sample meals and an inspiring success story.
Chronically high insulin is a modern problem
“Almost everyone has high insulin levels these days,” says women’s health researcher Ali Chappell, PhD, MS, RD. A big reason is due to our current processed food supply, loaded with hidden sugars. As a result, the typical modern “workaholic pancreas” tends to release insulin in our body like the out-of-control chocolate conveyor belt from I Love Lucy.
Luckily, Chappell has devoted her life to finding an easy, natural way to lower insulin levels in the long term, reversing weight gain in the process. The good news: It’s 100 percent possible to reverse high insulin levels that fuel belly fat storage after age 40. And her work is getting rave reviews from top doctors.
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Why keeping insulin low is key after 40
“Insulin is your fat-storage hormone,” Chappell says. It’s also a master hormone affecting almost every other hormone in your body. “People with elevated insulin have naturally lower levels of GLP-1 appetite-suppressing hormones. It should be a goal for nearly everyone to lower insulin.”
When estrogen starts to drop in your 40s, insulin rises, says Chappell. “Higher insulin levels mean a larger percentage of the calories you eat will be stored as fat.” Even if you don’t change anything in your diet, newfound pounds can pile up.
For these women, the old diet advice no longer works. “Doctors say, ‘just eat less and exercise more,’ but your hormones are saying, ‘eat more and take a nap,’ so it’s difficult to be successful,” she explains.
How to lower insulin levels to lose weight
Cappell’s groundbreaking approach is different: “Focus first on lowering insulin so we can make weight loss possible.” She has conducted three clinical studies, proving that to stop the cascade of insulin, you simply have to limit foods that cause an insulin spike. (That’s different from a blood-sugar spike. Chappell says you can have normal blood sugar levels but still have “astronomical insulin levels.”)
Cappell calls her way of eating a “low insulin lifestyle.” To learn more, check out her book by that name or the Lilli Health app.
What the research shows about a low-insulin diet
To test out her plan, Chappell turned to women with polycystic ovarian syndrome (PCOS), a “population known to have a genetic predisposition for very high insulin levels.” She says, “If it worked for them, it would work for anyone.” The plan was simple: Participants cut out the three most common insulin-spiking foods (starches, specific dairy and all added/artificial sugar) and ate their fill of everything else.
The results were astounding. Without counting calories, the women lost an average of 8.5 percent of their weight (close to 20 pounds) and shrank their waist by 7.6 percent (more than three inches) in just eight weeks. None of the participants had diabetes, and yet their insulin problems improved by 49 percent! Bonus: Women following a low insulin lifestyle in one study lowered their triglycerides by 35 percent in eight weeks.
A low-insulin diet works better than Ozempic
Those test results outperform Ozempic, which helps people lose 15 pounds in 12 weeks. “Addressing insulin [problems] early is critical to preventing obesity,” says Yale Ob-Gyn Steven J. Fleischman, MD. This change “holds the potential to profoundly alter the course of women’s health for generations to come.”
Bottom line: “Weight loss has never been about calories. It’s about hormones,” Chappell says. “When you lower your insulin, you get your appetite hormones to work for you, so you feel control around food.”
How to follow a low-insulin diet
Request an insulin test
To get a baseline, ask your doctor for a HOMA-IR blood test, which measures how insulin-resistant your body is. (A score over 1.9 signals a chronic problem with too much insulin.)
Eat these foods
Enjoy unlimited amounts of lean meat, fish, nonstarchy veggies, fruit, nuts/seeds, tofu/edamame and healthy oils. You can even have 6 oz. of dry red wine, 1 oz. of dark chocolate and one serving of full-fat fermented dairy (like aged cheese or unsweetened Greek yogurt) daily.
Avoid these foods
Skip insulin spiking foods such as starches (potatoes, pasta, wheat, rice, corn), other dairy and added, processed or fake sugars.
Also dodge whey dairy
“Whey is pretty much the most insulin-spiking food you can eat,” Chappel says. “It spikes insulin more than a slice of white bread.” She says this ultra-processed protein powder is hidden in countless so-called healthy foods.
Ask yourself: ‘Does this spike my insulin?’
“I was a binge eater. I never stopped worrying about food and calories,” reveals Chappell. The only question she asks herself now: “Does this food spike my insulin?” If not, she eats it with abandon, like her viral banana brownie recipe on Instagram. If the answer is yes, she limits or avoids it.
Sample low-insulin diet meals
Chappell recommends eating three meals a day, plus a snack and an insulin-friendly dessert. Avoid insulin-spiking foods (starches, most dairy, added sugar). Load up on meat, fish, veggies, fruit, nuts and seeds. “Over time, you’re naturally going to eat less because you’re not as hungry when insulin levels drop.”
• Breakfast: Scramble 2 eggs and enjoy with half an avocado and some fresh fruit.
• Lunch: Sauté up to 1 lb. of veggies; serve with protein. Add nuts and grated Parmesan cheese.
• Dinner: Grill steak with roasted zucchini. Enjoy 1 glass of dry red wine or a serving of dark chocolate.
Low insulin diet success: Lillie lost 70 pounds!
Lillie Ingram, 58, lived with high insulin for years. Then the lifelong crash dieter met Chappell. “I was told, ‘You can eat a pound of veggies and as much fruit as you want and you never have to worry if you want a late-night snack.’ I thought, ‘That sounds too easy. No way it’s going to work,’” Lillie recalls. But it did. “After a week, I started losing the cravings for bread and sugar and things that would wake me up at night,” she says.
Next: “I started seeing the weight fall off. Wow, how could this even be true?” She shed 12 to 16 pounds a month early on. She’s effortlessly stuck to this lifestyle for three years and has lost 70 pounds and dropped four clothing sizes.
“I was in disbelief that it could be this simple and I didn’t have to do keto or shots.” Now, when she visits her grandchild in Switzerland—and enjoys cheese and bread—her metabolism is fit and flexible. “I always lose those 5 pounds. I love it!”
Today, Lillie reports, “I feel healthier than ever. My insulin, cholesterol and blood pressure went down. I want to tell everyone about this!”
This story originally appeared in the January 19, 2026, issue of Woman’s World
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