Browse the evidence

Gastrointestinally-mediated glucose disposal (GIGD), a measure of integrated glucose handling including glucagon suppression, is significantly reduced in Type 2 Diabetes and correlates with obesity.

Managing Type 2 Diabetes involves more than just stimulating insulin; it requires suppressing glucagon. Weight loss helps restore this balance, improving how your body disposes of glucose after a meal.

Leucine-rich high protein supplementation (50.6 g protein and 6 g leucine daily) does not significantly improve body composition or muscle function in older adults with sarcopenia over a 12-week period, despite upregulating specific gene expression related to ATP production and DNA repair.

For older adults with sarcopenia, taking leucine-rich protein supplements alone for 12 weeks will not significantly increase muscle mass or improve physical function. While it may positively influence gene expression related to energy production, it is not a standalone solution for reversing sarcopenia. To see functional benefits, supplementation should likely be combined with resistance exercise.

Telephone health coaching (THC) does not significantly reduce long-term (8-year) composite cardiovascular morbidity or mortality in intention-to-treat analysis for patients with Type 2 Diabetes, Coronary Artery Disease, or Congestive Heart Failure.

If you have diabetes or heart disease, phone coaching alone is unlikely to prevent heart attacks or death unless you actively engage with the process. The study showed no benefit for the general group receiving the coaching. However, those who actually participated in the sessions (per-protocol) did see benefits, suggesting that your active involvement is the key driver, not the phone calls themselves.

In elderly patients with type 2 diabetes, maintaining the Triglyceride-Glucose index combined with a Body Shape Index (TyG-ABSI) within an optimal range (specifically avoiding both extremely low and extremely high values) is associated with the lowest all-cause mortality risk.

If you have Type 2 Diabetes, standard weight metrics like BMI might not fully capture your mortality risk. Research suggests that a combination of insulin resistance markers (Triglyceride-Glucose index) and body shape (ABSI) provides a more accurate prediction of health outcomes. Crucially, this risk follows a 'U-shape': both extremely high and extremely low values of this combined index are associated with higher mortality. Therefore, the goal is not simply to minimize these numbers, but to maintain them within an optimal, balanced range, while closely monitoring kidney function (eGFR) as it mediates this risk.

Obesity causes chronic kidney disease directly through adaptive glomerular changes (glomerulopathy associated with obesity) and indirectly by increasing the risk of hypertension and type 2 diabetes.

Maintaining a healthy weight is critical for kidney health. Obesity directly stresses the kidneys through increased blood flow and filtration pressure, leading to scarring (glomerulosclerosis). Weight loss, along with managing blood pressure and blood sugar, is the most effective way to prevent kidney damage.

Hypothalamic gliosis, measured via MRI T2 signal ratios, is positively associated with higher BMI, hypertension, metabolic syndrome, and lower HDL-C, independent of adiposity.

This research suggests that brain inflammation (gliosis) is linked to heart disease risks like high blood pressure and bad cholesterol, even if you aren't overweight. While you can't easily see this on an MRI, it implies that managing metabolic health through diet and exercise might protect your brain's regulatory centers, potentially lowering your cardiovascular risk.

Approximately 11.5% of patients undergoing secondary metabolic bariatric surgery (MBS) transfer to a different hospital than their primary procedure, a rate that is underestimated in single-institution registries.

If you are considering secondary bariatric surgery, be aware that about 11% of patients switch hospitals for this procedure. This is often driven by dissatisfaction with weight regain or complications from the first surgery. You are not alone in seeking a second opinion or a different provider if you feel your current care is not meeting your expectations.

Obesity causes kidney damage through direct mechanisms including glomerular hyperfiltration, increased intraglomerular pressure, and the endocrine activity of adipose tissue, independent of diabetes and hypertension.

Your kidneys are working harder because of your weight. The extra fat tissue releases hormones that increase pressure inside the kidney's filtering units. This constant high pressure damages the filters over time, leading to kidney disease. Managing your weight reduces this internal pressure and protects kidney function.

SGLT2 inhibitors improve cardiac energy efficiency in failing diabetic hearts by shifting fuel utilization from fatty acids to ketone bodies, which act as a 'super-fuel' that generates ATP more efficiently.

SGLT2 inhibitors change how your heart gets energy. Instead of struggling to burn fat, your heart efficiently burns ketones produced by the drug, which provides more energy with less stress, helping a failing heart function better.

Higher neighborhood-level socioeconomic disadvantage is associated with weaker statistical interactions (correlations) among the stages of adiposity, dysglycemia, and hypertension, suggesting that in disadvantaged populations, these cardiometabolic drivers develop more independently of one another.

If you live in a high-disadvantage neighborhood, standard assumptions about how weight affects blood sugar and blood pressure may not apply to you. The link between carrying extra weight and developing high blood sugar or high blood pressure is weaker in these settings. This suggests that factors like chronic stress, limited access to healthy food, and environmental stressors play a larger, independent role in your cardiometabolic health. Screening and prevention strategies should account for these social determinants rather than focusing solely on weight management.

Elevated Remnant Cholesterol Inflammatory Index (RCII) is independently associated with a significantly higher risk of incident cardiovascular disease (CVD), including heart disease and stroke.

If you are over 45, ask your doctor about your Remnant Cholesterol Inflammatory Index (RCII). It combines your cholesterol levels with inflammation markers to better predict heart disease risk than weight or BMI alone. High RCII indicates a need for targeted lifestyle interventions focusing on both lipid management and inflammation reduction.

RCII partially mediates the association between ABSI and incident CVD, with the mediation proportion increasing across higher ABSI quartiles.

Understanding that inflammation and lipid metabolism (RCII) play a role in how abdominal fat (ABSI) affects heart health can guide more targeted treatments. For those with high ABSI, addressing inflammation may provide additional cardiovascular protection beyond just weight management.

Prolonged oral processing (chewing) increases in vitro protein and lipid digestion efficiency by mechanically breaking down the food matrix, but this does not necessarily translate to altered in vivo glycaemic responses in healthy individuals.

For healthy individuals, chewing your food more thoroughly will help your stomach enzymes break down proteins and fats more efficiently in the lab setting, but it won't significantly change your blood sugar levels or metabolic health. If you have pre-diabetes, thorough chewing may help regulate blood sugar, but for the general healthy population, the food's physical structure (e.g., whole nuts vs. ground) matters more for nutrient absorption than chewing time alone.

The physical structure of plant-based foods (food matrix) acts as a barrier to nutrient digestion, meaning intact cell walls in nuts and grains reduce lipid and starch bioaccessibility compared to disintegrated foods.

When eating whole nuts or grains, your body may not absorb all the calories listed on the package because the tough cell walls protect some of the fats and starches from digestion. This means whole plant foods might be less calorie-dense than their labels suggest, but you should not rely on this to overconsume them.

High LDL-C and low HDL-C are more prevalent in women, while hypertriglyceridemia is more prevalent in men in the Iranian adult population.

Lipid profiles differ by gender. Women in this population showed higher rates of low HDL and high cholesterol, while men showed higher rates of high triglycerides. Regular lipid screening is important for both genders, with attention to these specific patterns.

A 12-week combined resistance and high-intensity interval training program significantly increases skeletal muscle gene expression of kynurenine aminotransferase (KAT) isoforms and transcriptional coactivators (PGC-1α, PPARα, PPARδ) in healthy older men, but does not significantly alter circulating plasma kynurenine metabolites.

For older men, a 12-week program combining resistance and high-intensity interval training effectively upregulates the genetic machinery in muscles associated with mood regulation pathways (kynurenine pathway). However, this molecular shift does not immediately result in measurable changes in blood metabolite levels. Consistency is key, as the benefit lies in the local muscle adaptation rather than immediate systemic metabolic shifts.

Estimating individual dietary intake from household-level consumption data using standard allocation methods (Adult Male Equivalent or Per Capita) systematically overestimates actual individual consumption for nearly all food groups and nutrients.

If you are using household budget data to guess what one person eats, assume the numbers are too high. The error is not random; it consistently overestimates intake, especially for fruits, vegetables, and vitamins. Do not use these estimates for individual clinical advice; they are only useful for broad population-level trends if corrected for this known bias.

Substituting plant-based meats for animal meats for 8 weeks does not significantly improve biomarkers of inflammation in generally healthy adults.

Swapping animal meat for plant-based meat alternatives for 8 weeks is unlikely to reduce your inflammation markers if your overall diet remains unchanged. These products are often ultra-processed, which may negate potential benefits. Focus on whole, unprocessed plant foods rather than just substituting meat analogues.

Contrast-enhanced ultrasound (CEUS) using gamma variate modeling of bolus microbubble injection provides a valid, noninvasive, and reproducible method for quantifying skeletal muscle microvascular perfusion in vivo.

If you are researching vascular health in older adults or those with metabolic disease, use Contrast-Enhanced Ultrasound (CEUS) with gamma variate modeling. This method allows you to see exactly how well blood flows into skeletal muscle at rest and during exercise, offering a much clearer picture of health than standard artery stiffness tests alone.

Kinovea video analysis software does not provide interchangeable or accurate measurements of barbell velocity, duration, or range of motion compared to the validated Open Barbell System (OBS) for free-weight resistance training exercises.

Do not use Kinovea to prescribe weights or determine when to stop a set based on velocity. It systematically overestimates speed and range of motion in free-weight lifts because it tracks the total path of the bar (including horizontal movement) rather than just vertical displacement. Use a validated linear position transducer (like the Open Barbell System) or percentage-based training if you cannot afford velocity equipment.

Type 2 diabetes is associated with an increased risk of developing various cancers, including breast, liver, pancreas, rectum, and urinary tract cancers.

If you have type 2 diabetes, be aware of the increased risk for certain cancers. Regular screenings for breast, liver, pancreas, rectal, and urinary tract cancers may be advisable in consultation with your doctor.

Intensive lifestyle intervention (ILI) targeting weight loss in adults with type 2 diabetes does not improve cognitive function and may leave a legacy of relative cognitive deficits in subgroups with baseline obesity or cardiovascular disease history, an effect not mediated by changes in leptin or VEGF levels.

For individuals with Type 2 Diabetes, especially those with obesity or heart disease history, intensive lifestyle interventions aimed at significant weight loss may not improve cognitive function and might be associated with relative cognitive declines compared to less intensive support. This decline was not explained by changes in leptin or VEGF. Patients should focus on overall metabolic health and cardiovascular risk reduction, but should not expect cognitive enhancement from weight loss alone, and should monitor for any subjective cognitive changes.

Moderate to severe weight change (loss or gain) of ≥5% within a 2-year interval is associated with a significantly increased risk of suicide mortality, exhibiting a reverse J-shaped curve.

If you experience rapid, unintentional weight loss or gain (≥5% in 2 years), it is a significant physiological stress signal. While weight loss is often pursued for health, rapid changes—especially if unexplained by diet/exercise—warrant medical and psychological evaluation to rule out underlying conditions or mental health risks, rather than simply viewing the change as a success or failure.

The Obesity Lifecycle Model demonstrates favorable concordance with observed clinical and quality-of-life outcomes, validating its use for evaluating obesity-related complications and informing healthcare decision making.

Healthcare decision-makers can use the Obesity Lifecycle Model to assess the cost-effectiveness of obesity therapies with confidence, as it has been validated to accurately predict clinical complications and quality-of-life impacts.