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Lifestyle
PubMed · December 31, 2026
This study looked at what happened when overweight college-age women took different amounts of caffeine before doing 40 minutes of moderate-paced treadmill walking — specifically walking at the speed where their bodies burned the most fat. The researchers found that a moderate caffeine dose (roughly 3–5 mg per kilogram of body weight — so about 200–340 mg for a 150-pound person, roughly the amount in 2–3 cups of coffee) taken before that walk increased the amount of fat the body burned during exercise compared to no caffeine, without raising heart rate or blood pressure the way the higher doses did. The evidence is early and was tested in a small group of young women, so it's worth discussing with your doctor before making any changes, especially since caffeine affects everyone differently.
Ask your doctor: Ask the doctor whether drinking caffeine before I exercise might help the patient's body burn more fat during workouts.
What's New
PubMed · December 31, 2026
Researchers found that men with obesity who combined a plant-based supplement called fisetin with a 12-week exercise program — mixing strength training and cardio — showed notable improvements in inflammation and blood sugar control compared to those who only exercised or only took the supplement. Specifically, levels of a natural inflammation-calming molecule in the body called Maresin-1 went up, while markers of inflammation and insulin resistance (a sign the body is struggling to manage blood sugar properly) went down most in the group that did both. This is early research and hasn't yet changed treatment guidelines.
What's New
PubMed · December 31, 2026
Researchers found that taking a pasteurized probiotic supplement (called Akkermansia muciniphila) for 3 months showed some promising results for people with prediabetes — a condition where blood sugar is higher than normal but not yet at diabetes levels. In particular, people who naturally had low levels of this beneficial gut bacteria to begin with seemed to benefit the most, showing improvements in how well their body responds to insulin (the hormone that manages blood sugar), as well as reductions in body weight and trunk fat. This is early research and hasn't yet changed treatment guidelines.
Medications
PubMed · December 1, 2026
This study compared two weight-loss medications — tirzepatide (brand name Mounjaro or Zepbound) and semaglutide (brand name Wegovy or Ozempic) — in people with obesity or excess weight. Researchers found that tirzepatide not only helped people lose more weight and reduced the risk of serious health problems like serious heart problems like heart attacks or strokes, but it was also estimated to cost less overall when factoring in healthcare and broader life costs. This appears to be a new finding about how these two medications compare, rather than a safety update or guideline change.
Ask your doctor: Ask the doctor whether tirzepatide might work better for the patient's weight loss than semaglutide, since studies show it helped people lose more weight.
What's New
PubMed (Open Access Guidelines) · December 1, 2026
Researchers found that whole-body vibration training — a type of exercise where people stand or move on a platform that vibrates — helped lower resting blood pressure in adults. The effect was especially noticeable in people who already had higher blood pressure or who were overweight, with their top blood pressure number dropping by more than 11 points on average in those groups. This is early research and hasn't yet changed treatment guidelines.
What's New
PubMed · December 1, 2026
A study found that people with type 2 diabetes and high blood pressure who lost weight through a dietary program — about 25 pounds on average over 12 months — were able to cut back on their high blood pressure medications, yet their blood pressure stayed just as well controlled as before. In fact, their heart rate and certain measures of blood pressure fluctuation during the night also improved. This is early research and hasn't yet changed treatment guidelines.
What's New
PubMed · December 1, 2026
Researchers found that people with psoriasis who are obese may not respond as well to certain biologic medications — powerful treatments that target the immune system to clear skin — compared to people who are not obese. The difference was most noticeable with two specific types of biologics (those targeting proteins called IL-17 and IL-12/23), while other types did not show the same pattern, though the evidence is still limited. This is early research and hasn't yet changed treatment guidelines.
What's New
PubMed · August 11, 2026
A study found that in people with sleep apnea who already had heart disease, carrying extra weight around the middle — measured by comparing waist size to height — was linked to a higher chance of serious heart problems like heart attacks or strokes, while standard body weight categories (BMI) were not as useful at predicting that risk. People with the most belly fat had about a 52% higher chance of experiencing one of these serious heart events compared to those with the least. This is early research and hasn't yet changed treatment guidelines.
Lifestyle
PubMed · August 1, 2026
Researchers found that eating a low-carbohydrate diet built around plant foods — think vegetables, nuts, legumes, and whole grains, while cutting back heavily on bread, sugar, and starchy foods — helped people with obesity or related health conditions lose roughly 5 to 7 kilograms (about 11 to 15 pounds). The same approach also lowered harmful LDL cholesterol and improved blood sugar level (A1C), which measures how well the body has been managing blood sugar over the past few months. These results came from seven studies involving nearly 1,000 adults and lasted anywhere from about one month to one year.
What's New
PubMed · July 21, 2026
A study found that older adults (ages 60–85) with atrial fibrillation — an irregular heartbeat that can cause symptoms like fatigue, shortness of breath, and palpitations — who followed a low-calorie diet and received behavioral support lost significantly more weight than those who received standard care, and researchers were looking at whether this helped reduce AF symptoms. This matters because some doctors have worried that weight loss in older people might lead to frailty (becoming physically weaker and more vulnerable), so understanding whether it's safe and helpful for this age group could be important for how AF is managed. This is early research and hasn't yet changed treatment guidelines.
What's New
PubMed · July 21, 2026
Researchers found that two years after weight-loss surgery (also called bariatric surgery), the mix of bacteria and proteins in patients' digestive systems had changed in notable ways — including shifts in immune-related proteins and the substances gut bacteria produce. This matters because it suggests that weight-loss surgery doesn't just shrink the stomach; it may also reshape the inner environment of the gut in lasting ways, which could play a role in long-term health outcomes for people with obesity. This is early research and hasn't yet changed treatment guidelines.
Lifestyle
ScienceDaily · July 18, 2026
A study found that people with obesity who limited all their eating to an eight-hour window each day — for example, eating only between noon and 8 p.m. — kept more weight off even a full year after the 12-week program ended, compared to people who ate on their usual schedule. The benefit showed up whether people chose an earlier or later eight-hour window, though an earlier eating window seemed especially good at helping people hold on to fat loss specifically. Researchers found this approach helped people with obesity maintain their results over time, not just while they were actively following the program.
What's New
PubMed · July 17, 2026
Researchers found that obese men who combined caffeine with short, intense bursts of exercise (called sprint interval training) for eight weeks saw greater improvements than those who exercised without caffeine — including more body fat loss, better fitness, more strength, and healthier blood sugar and cholesterol levels. HDL (often called 'good' cholesterol) went up, while LDL ('bad' cholesterol), triglycerides (fats in the blood), and blood sugar all went down more in the caffeine group. This is early research and hasn't yet changed treatment guidelines.
What's New
PubMed · July 16, 2026
Researchers found that smartphone and app-based tools that send people personalized nudges or tips at just the right moment — like when they're most likely to make a poor food choice — may help people eat healthier in their everyday lives. For someone managing obesity, this kind of real-time, tailored support could make it easier to build better habits without relying on memory or willpower alone. This is early research and hasn't yet changed treatment guidelines.
What's New
PubMed · July 16, 2026
Researchers found that digital mental health tools — like therapy apps, online counseling, and guided self-help programs — can meaningfully help people with obesity by improving their mood, eating habits, and relationship with food, even when weight loss itself was modest or mixed. What stood out is that these digital tools seemed to work best when they were built around proven therapy approaches, such as techniques that help people change unhelpful thought patterns. This matters because obesity is deeply connected to mental and emotional well-being, and these tools could make support more accessible to people who can't easily attend in-person care. This is early research and hasn't yet changed treatment guidelines.
What's New
PubMed · July 15, 2026
Researchers found that older adults with obesity who consistently ate more foods containing spermidine — a natural compound found in things like wheat germ, mushrooms, and aged cheese — showed improvements in liver health and blood sugar level (A1C) over one year, along with reductions in body weight and waist size. Spermidine is thought to help the body's cells clean and repair themselves, which may explain why higher intake was linked to better health markers in this group. This is early research and hasn't yet changed treatment guidelines.
Lifestyle
PubMed · July 15, 2026
A study found that adults with type 2 diabetes who followed a personalized exercise program — combining aerobic activity (like brisk walking or cycling) and strength training, tailored to each person's fitness level — for 16 weeks lost an average of about 2.6 pounds of body fat and gained more muscle compared to those who kept their usual routine. The exercise group also saw improvements in blood sugar control and showed better memory, faster thinking, and sharper mental focus by the end of the program. Researchers used brain scans to confirm that the brains of people in the exercise group were working more efficiently after the 16 weeks.
What's New
JAMA · July 14, 2026
Researchers found that eating a lot of ultraprocessed foods — things like packaged snacks, fast food, and ready-made meals that are heavily manufactured and contain many added ingredients — may be linked to a higher risk of serious heart problems like heart attacks or strokes, as well as a greater chance of death overall. For people with type 2 diabetes, who are already at higher risk for heart-related complications, this connection could be especially important to be aware of. This is early research and hasn't yet changed treatment guidelines.
Guidelines
JAMA · July 14, 2026
According to the American Heart Association, staying physically active is still an important part of caring for people with obesity — even for those taking a diabetes medication like Ozempic or Victoza. The Association wants people and their doctors to know that these medications and physical activity work best together, not as replacements for each other. Staying active supports heart health, strength, and overall well-being in ways that medication alone may not fully address.
What's New
PubMed · July 13, 2026
Researchers found that a combination medication called IDegLira — which pairs a long-acting insulin with a diabetes medication like Ozempic or Victoza — helped overweight or obese people with type 2 diabetes reach healthy blood sugar levels faster and with less insulin than those using a standard long-acting insulin alone, all within a short 7-day hospital treatment. People in the IDegLira group also spent more time with their blood sugar in a healthy range and had fewer dangerous highs, which could matter because keeping blood sugar steady reduces the risk of serious complications over time. This is early research and hasn't yet changed treatment guidelines.
Ask your doctor: Ask the doctor whether IDegLira (a combination of insulin degludec and liraglutide) might work better than insulin glargine for helping the patient control blood sugar levels if the patient is overweight or obese.
What's New
PubMed · July 13, 2026
Researchers found that combining a weight-loss medication called orlistat with dietary counseling — and in some cases a fiber supplement called psyllium — led to fewer stomach and bowel side effects than many participants had experienced before, and those in the fiber group also lost more weight. This matters because stomach discomfort is one of the main reasons people stop taking orlistat, so finding ways to make it easier to tolerate could help more people stick with their treatment. This is early research and hasn't yet changed treatment guidelines.
Lifestyle
ScienceDaily · July 10, 2026
A press release describes findings suggesting that eating a Mediterranean-style diet — one that is low in protein, particularly from animal sources like meat and dairy — may help reduce body fat and lower the chances of obesity and Type 2 diabetes. The diet also kept levels of a building block found in animal protein, called methionine, just low enough to appear beneficial. Researchers saw these effects in mice and also found a pattern in human data linking less animal protein to better outcomes.
Medications
ScienceDaily · July 9, 2026
A press release highlights a rise in accidental dosing mistakes involving Ozempic and Wegovy — medications used to help manage weight and blood sugar — leading to a surge in calls to poison control centers. These incidents appear to be unintentional errors, such as taking the wrong dose or dosing too often, rather than deliberate misuse. Experts suggest that clearer education about how to use these weekly medications correctly could help prevent many of these situations.
Ask your doctor: Ask the doctor whether the patient needs clear written instructions about how often to inject Wegovy and how to increase the dose slowly to avoid accidental overdose mistakes.
Lifestyle
ScienceDaily · July 8, 2026
A press release highlights that intermittent fasting — where people limit eating to certain hours of the day or certain days of the week, rather than tracking every calorie — helped people with obesity lose a similar amount of weight as traditional calorie-counting diets. The key finding is that people who fasted felt less like they were constantly fighting their hunger or watching every bite, which may make it easier to stick with long-term. Researchers suggest this mental ease could be a real advantage for people who find traditional dieting hard to maintain.
What's New
PubMed · July 8, 2026
Researchers found that several weight-loss medications helped people with obesity lose a meaningful amount of weight over one year compared to lifestyle changes alone — with tirzepatide and a newer combination drug called cagrilintide-semaglutide leading the pack, helping people lose roughly 15% of their body weight on average. Some newer medications still being studied may work just as well or even better, though the evidence on those is still limited. This is early research and hasn't yet changed treatment guidelines.
What's New
PubMed · July 8, 2026
Researchers found that weight loss programs — including changes to diet and lifestyle, medications, and surgery — generally improved liver health in children and teens with obesity, with most of the benefit coming from combined approaches that tackle food, activity, and behavior together. Exercise alone, however, didn't seem to move the needle on fat buildup in the liver. Bariatric surgery (an operation that reduces the size of the stomach) was the only approach that improved the physical structure of the liver itself, and the more weight a young person lost, the greater the liver improvements tended to be. This is early research and hasn't yet changed treatment guidelines.
What's New
PubMed · July 8, 2026
Researchers found that people living with both obesity and a mental illness like schizophrenia may lose meaningful weight when taking a diabetes medication like Ozempic or Victoza — with one version (semaglutide, sold as Ozempic) showing especially strong results in reducing body weight across nine studies involving nearly 600 people. Some versions of these medications were also linked to improvements in waist size and blood sugar level (A1C), which is a measure of how well blood sugar has been managed over the past few months. This is early research and hasn't yet changed treatment guidelines.
Medications
ScienceDaily · July 7, 2026
A new once-daily pill called orforglipron was tested against oral semaglutide — the pill version of the medication behind Ozempic — and helped people with type 2 diabetes lose more weight and improve their blood sugar control. Unlike Ozempic, which is an injection, orforglipron is a pill that doesn't need to be refrigerated or taken at a specific time around meals, making it potentially easier to use. It's also less expensive to produce, which could mean more people around the world might one day be able to access it.
What's New
PubMed · July 7, 2026
Researchers found that people who lost belly fat through diet and exercise kept some of those gains even years later — even after regaining the weight they had lost. Specifically, the fat stored deep in the abdomen (called visceral fat, which wraps around internal organs and is linked to heart and metabolic problems) stayed partially reduced for up to 10 years, which may help protect long-term heart health. This is early research and hasn't yet changed treatment guidelines.
What's New
ScienceDaily · July 3, 2026
Scientists have discovered a protein called 'Mitch' that seems to play a big role in how the body stores and burns fat. When researchers turned off this protein in human cells, the cells burned more fat, used more energy, and had a harder time forming new fat cells — which are the cells that store extra fat in the body. This could eventually lead to new treatments for obesity, but this is early research and hasn't yet changed treatment guidelines.
For informational purposes only. Not medical advice. Always consult a physician before making any health decisions.