Browse the evidence

High-fat diets induce gut barrier defects and metabolic endotoxemia (elevated LPS), which triggers low-grade inflammation and compromises insulin sensitivity.

Reducing chronic high-fat intake can help maintain gut barrier integrity, preventing the leakage of inflammatory bacterial components (LPS) into the bloodstream, which may improve insulin sensitivity.

High polygenic risk for obesity interacts with specific nutrient intakes (particularly saturated fat and trans fat) to accentuate BMI increases, whereas omega-3 intake may attenuate this genetic susceptibility.

If you have a high genetic risk for obesity, the quality of fat you eat matters more than you might think. Prioritize omega-3 fatty acids and minimize trans fats and saturated fats, as these nutrients can significantly blunt the BMI-increasing effects of your genetic predisposition. Total fat quantity alone is less predictive than fat type.

The Paleo diet is associated with the longest average adherence duration (5.32 weeks) and the lowest dropout rate during the winter holiday season (14% in December) among New Year's resolution dieters, compared to other popular diets like South Beach.

If you are starting a diet in January, choose one that allows you to eat a wide variety of foods, including energy-dense options, to increase your chances of sticking with it through the holidays. The Paleo diet showed the best adherence in this study, likely because it does not require eliminating entire food groups like grains or dairy, making it easier to navigate social events and holiday meals without feeling deprived.

Ketogenic diet is effective for short-term weight loss in obese individuals by shifting energy metabolism to ketone bodies.

To lose weight using a ketogenic diet, restrict carbohydrates to under 50 grams per day while consuming high fat and adequate protein. This shifts your body to burn ketones for energy. Be aware that strict versions can be hard to taste and sustain long-term, so consider phased approaches like VLCKD with careful monitoring.

A clinical decision support system (CDSS) that integrates patient-centered pre-visit questionnaires with provider alerts significantly increases primary care practitioners' self-reported frequency of counseling on behavioral interventions, referring to weight-loss programs, and discussing anti-obesity medications.

For primary care providers, using a clinical decision support system that allows patients to complete a pre-visit questionnaire about their weight management interest can significantly increase the likelihood of you counseling on behavioral changes, referring patients to weight-loss programs, and discussing anti-obesity medications. This approach works by reducing the friction of initiating these conversations and integrating seamlessly into your electronic health record workflow.

Commonly consumed South Indian breakfast meals are high in available carbohydrates (ranging from 49.6% to 71.8% on a dry basis), which contributes significantly to daily energy intake and potential weight gain if consumed in excess.

If you eat South Indian breakfasts like dosa, idly, or vada, know that they are high in carbohydrates. To manage your weight, be mindful of portion sizes and balance these meals with lower-carb options later in the day, as excess carbohydrates contribute to weight gain.

High carbohydrate intake (61% of energy) is associated with lower total mortality and cardiovascular events compared to high fat intake (23.5% of energy).

Focus on the quality of your diet rather than just cutting fat. The PURE study suggests that a diet with higher carbohydrates and lower fat (as traditionally practiced in many parts of the world) may be associated with better health outcomes than high-fat diets. However, this does not mean you should consume excessive amounts of refined sugars or processed foods. Instead, prioritize whole food sources of carbohydrates and healthy fats.

Autoregulated single repetition sets at RPE 9-9.5 may minimize training time but are less likely to produce meaningful strength gains compared to the standard METD protocol.

If you are extremely time-crunched, you can try doing just one heavy single at RPE 9-9.5 per session. However, be aware that this method is less effective for building strength. To get better results with minimal extra time, add 2-3 'back-off' sets at 80% of your single's weight.

High-volume static stretching (≥15 minutes per muscle group, >3 times per week) induces muscle hypertrophy and strength increases comparable to resistance training, primarily by generating high-magnitude mechanical tension that activates mTOR/p70S6K signaling pathways.

If you cannot lift weights due to injury, age, or lack of equipment, perform static stretches for at least 15 minutes per muscle group, 3 or more times a week. Push to the point of discomfort (but not sharp pain). This can build muscle and strength similarly to weightlifting, though it takes longer per session. It is particularly useful for immobilized patients or as a supplement to your regular workouts.

High-volume static stretching improves glycemic control (post-prandial glucose and HbA1c) in individuals with Type 2 Diabetes, potentially by increasing GLUT-4 translocation via AMPK and CaMK pathways.

If you have Type 2 Diabetes, incorporating static stretching into your routine may help lower blood sugar levels, especially after meals. It works by helping your muscles take up glucose without needing as much insulin. It is not a replacement for medication but a helpful addition.

Inter-set palm or sole cooling (10-15°C for 1-3 minutes) may acutely enhance resistance training volume capacity and maximal strength, though evidence is mixed and methodologically limited.

If you want to try inter-set cooling, use 10-15°C cooling on your palms (for upper body) or soles (for lower body) for 1-3 minutes between sets. You can use cold water buckets or ice packs. Be aware that results are inconsistent; some people may see increased volume or strength, while others see no change. It is not a guaranteed performance enhancer, but it is low-risk and may help some individuals tolerate more volume.

Training with 4-6 or 1-3 repetitions in reserve (RIR) yields comparable strength gains, whereas training to momentary failure (0 RIR) or near-failure (0-3 RIR) results in slightly inferior strength outcomes in trained men.

For strength gains, you do not need to train to failure. Stopping sets with 1-3 reps left in the tank (RIR) produces similar or better strength results than going to failure. Training to failure may actually hinder strength progress due to excessive fatigue and reduced recovery capacity. Focus on maintaining bar speed and consistency rather than absolute exhaustion.

Training sets to submaximal proximities of failure (4-6 RPE or 7-9 RPE) yields strength gains comparable to training with higher proximities, while training to momentary failure (10 RPE) may result in slightly inferior strength outcomes.

You do not need to train to failure to get strong. Training sets to 4-6 or 7-9 RPE (leaving 4-9 reps in reserve) produces strength gains similar to each other. Training to absolute failure (10 RPE) may actually hinder strength progress due to excessive fatigue. Focus on maintaining barbell velocity and managing recovery rather than grinding out every last rep.

Weight-neutral nutrition and exercise counseling can improve insulin sensitivity in patients with stage 1 obesity, as measured by the Quantitative Insulin Sensitivity Check Index (QUICKI).

If you have stage 1 obesity and metabolic issues, try focusing on improving diet quality (more fiber, less sodium, healthy fats) and increasing physical activity without stressing about the number on the scale. This approach can improve your insulin sensitivity for some people, even if you don't lose weight.

Metformin augmentation for non-responders to initial behavioral interventions provides a potential rescue effect but is associated with gastrointestinal side effects that challenge adherence.

If behavioral changes alone don't improve your insulin sensitivity, adding metformin might help, but be prepared for potential stomach issues. Starting with a low dose and using extended-release versions can help manage side effects.

Higher pre-diet daily gut microbiota plasticity predicts greater 12-month sustained weight loss specifically in individuals following a low-fat diet, but not a low-carb diet.

If you are following a low-fat diet, your gut microbiome's ability to change day-to-day (plasticity) before you start may predict your success. Men with higher pre-diet plasticity lost more weight and adhered better. Women did not show this correlation. For low-carb diets, pre-diet plasticity was not a predictor of success, though plasticity *during* the first 10 weeks was higher in successful users. Do not rely on static microbiome tests to predict success; focus on adherence.

Gut microbiota plasticity during the first 10 weeks of a dietary intervention correlates with weight loss success in a diet-dependent manner, with significant findings for low-carb dieters but not low-fat dieters.

If you are on a low-carb diet, the amount your gut microbiome changes in the first 10 weeks may predict your long-term success. Those who lost the most weight showed greater shifts in their microbiota during this period. This predictor does not apply to low-fat dieters, for whom pre-diet plasticity is the key factor.

Psychological distress (stress, anxiety, depression) and environmental barriers (food insecurity, poor neighborhood quality) significantly increase the risk of weight regain after intentional weight loss by driving disinhibited eating and reducing behavioral adherence.

If you are struggling to maintain weight loss, look beyond just calories. Assess your stress levels, mental health, and your physical environment (food access, neighborhood safety). High stress and poor food environments are proven drivers of weight regain. Addressing these external and psychological factors is essential for long-term success, not just willpower.

Impulsiveness (measured by BIS-11 and MCQ) and temporal discounting (preference for immediate rewards) are significant predictors of weight regain, as they correlate with higher caloric intake and poor adherence to dietary restrictions.

If you find it hard to stick to your diet, it might not just be a lack of discipline. Your brain's tendency to prefer immediate rewards (like tasty food) over long-term goals (like health) plays a role. Recognizing this 'impulsiveness' can help you implement strategies to manage it, such as removing triggers or planning ahead.

Metabolic adaptation (energy expenditure below expected levels) and appetite adaptation (increased energy intake) are coregulated and inseparable factors in weight regain.

Don't try to fix weight maintenance by only focusing on diet or only on exercise. Your body's hunger signals and energy burn are linked. Effective long-term strategies need to address both sides of the energy balance equation simultaneously.

Maintaining weight loss induced by anti-obesity drugs may require lifelong use unless effective adjunct strategies for weight maintenance are available.

If you use medication for weight loss, understand that it may need to be long-term. This is similar to managing other chronic conditions. The goal of research like POWERS is to find adjunct strategies that might reduce this dependency.

Self-selection of behavioral weight loss programs (DPP vs. HWL) in adults with obesity results in balanced enrollment (approx. 50/50 split) without significant bias from BMI, age, or baseline health conditions, though race, income, education, and prior weight loss history do influence program preference.

If you are designing or choosing a weight loss program, offering a choice between different behavioral models (e.g., strict logging vs. biological focus) does not inherently break the study or skew results. However, be aware that race, income, education, and past weight loss history may influence which program a participant prefers. Matching the program to these factors may improve initial engagement.

GLP-1 receptor agonists (Liraglutide, Semaglutide) and dual agonists (Tirzepatide) are viable and promising options for weight loss in people living with HIV, with minimal drug-drug interaction risks compared to Orlistat.

GLP-1 agonists like Liraglutide and Semaglutide are effective and generally safe for people with HIV, with fewer drug interactions than older drugs like Orlistat. They require injections (or new oral forms in development). Discuss these options with your provider if lifestyle changes alone are insufficient.

Mazindol, an anorexiant approved in Japan for short-term weight loss, significantly reduces body weight and total cholesterol compared to placebo in Japanese adults with obesity, but is associated with higher adverse event rates.

For Japanese adults with obesity, mazindol is an approved short-term treatment that significantly reduces body weight and total cholesterol compared to placebo. It acts by suppressing appetite. Patients should be aware of higher adverse event rates and the need for short-term use.