Browse the evidence

Combining semaglutide with lifestyle interventions (diet and exercise) reduces the risk of hypoglycemia and improves triglyceride levels compared to semaglutide alone, despite potentially lower absolute weight loss goal achievement in the short term.

If you are taking semaglutide, do not skip lifestyle changes. Combining the medication with diet and exercise significantly reduces your risk of hypoglycemia and improves your triglyceride levels. While you might see quick weight loss without lifestyle changes, the long-term health benefits and safety profile are superior when you combine the drug with healthy habits.

Bariatric surgery induces a significant decrease in Total Daily Energy Expenditure (TDEE) and metabolic adaptation at 8 weeks post-intervention, but this metabolic suppression is reversed by 52 weeks, coinciding with a sustained increase in free-living physical activity.

If you have had bariatric surgery, expect your energy expenditure to drop significantly in the first two months as your body adjusts to its new size. This 'metabolic adaptation' is normal but not necessarily permanent. The key to long-term success appears to be increasing your daily physical activity, which may help counteract this drop in energy expenditure and allow your metabolism to normalize over the course of a year.

Weight loss efficacy from primary care interventions attenuates over time, with an average regain of 0.53 kg per 6 months, even when the intervention continues.

Don't expect your weight loss to stay perfectly static. Even with ongoing treatment, you may regain about 0.5 kg every 6 months. This is normal. To maintain your loss, you likely need to stay on your treatment plan (including medication if used) long-term, rather than treating it as a short-term fix.

Anti-obesity medication (AOM) administered in primary care settings produces approximately double the weight loss (-2.94 kg) compared to non-pharmacologic interventions, but efficacy attenuates over time at a rate of 0.44 kg per six months.

If you are seeking weight loss in primary care, expect that adding medication to lifestyle changes will roughly double your weight loss compared to lifestyle changes alone. However, be prepared for this to be a long-term commitment; stopping the medication often leads to regaining the weight because your body fights to maintain the lower weight. Consistency and long-term use are key to maintaining results.

A personalized postprandial-targeting (PPT) diet, which uses machine learning to predict individual glycemic responses based on clinical and microbiome data, significantly improves glycemic control and metabolic health in newly diagnosed type 2 diabetes (T2DM) patients compared to a standard Mediterranean-style (MED) diet.

For newly diagnosed T2DM patients, a standard Mediterranean diet may not be sufficient. A personalized diet that predicts your specific blood sugar response to foods (using your microbiome and health data) is significantly more effective at lowering blood sugar and achieving remission than standard dietary advice. This approach requires technology (CGM and an app) but offers a path to diabetes remission (61% of participants in the long-term study) that standard diets do not guarantee.

Adherence to a personalized postprandial-targeting (PPT) diet is associated with greater improvements in glycemic parameters (time in range, fasting glucose, insulin) compared to lower adherence, even when caloric intake is similar.

Strictly following the personalized meal plan provided by the algorithm yields better blood sugar control than loosely following it, even if you don't lose weight. The key is consistency with the specific foods recommended for your body.

Adjunct treatment with once-weekly semaglutide (max 0.5 mg) induces significant weight loss in non-diabetic patients experiencing weight regain or insufficient weight loss after bariatric surgery.

If you have had bariatric surgery and are regaining weight or haven't lost enough, talk to your doctor about adding once-weekly semaglutide. This study shows it can help you lose significant weight (over 10% in 6 months) even at a lower dose (0.5 mg) than what is typically used for non-surgical obesity. It is a safe adjunct to lifestyle changes and may help you avoid more invasive revision surgery.

Internal attentional focus (focusing on the muscle) increases muscle activation and hypertrophy in some muscles (e.g., biceps) but may decrease strength and efficiency compared to external focus (focusing on the movement).

Use internal focus (thinking about the muscle) when you want to maximize hypertrophy in specific muscles, especially if you are experienced. However, be aware that it may reduce your strength and efficiency. For strength and power goals, external focus (thinking about the movement) is often superior.

Providing feedback chronically across a training cycle leads to greater improvements in sprint performance and potentially jump performance compared to training without feedback.

If you are following a multi-week resistance training program, consider using feedback (visual or verbal) consistently. This may help you improve your sprint speed and jump height more than training without feedback.

Pancreatic lipase inhibitors, specifically Orlistat, reduce obesity by preventing the hydrolysis of dietary triglycerides into absorbable free fatty acids and monoglycerides, thereby reducing caloric intake from fat.

Orlistat works by physically blocking your body from absorbing about 25% of the fat you eat. This leads to weight loss, but it comes with a high likelihood of gastrointestinal side effects like oily stools and gas. To minimize these side effects, you must strictly limit the amount of fat in your diet, particularly with each dose. It is a tool for weight management, not a free pass to eat high-fat foods.

A ketogenic diet causes an upward trend in serum uric acid levels, potentially increasing the risk of gout, requiring increased water intake and possibly sodium bicarbonate to mitigate.

Be aware that starting a ketogenic diet may raise your uric acid levels, which can trigger gout. To mitigate this, drink at least 2 liters of water daily. If you have a history of gout, consult your doctor before starting.

Resistance exercise 'snacking' (brief bouts of exercise performed daily or multiple times daily) improves muscle strength and reduces muscular discomfort/sleepiness in untrained individuals.

Break your exercise into short 2-10 minute bouts throughout the day. This 'snacking' approach can reduce muscle soreness and fatigue while still building strength, making it easier to stay active.

Practicing the strength test (one maximal repetition per set) and minimal dose eccentric resistance exercise are emerging concepts that show promise for increasing muscle strength but require further ecological validation.

While promising, these strategies (maximal single reps or eccentric-only) are still being validated for real-world use. Stick to standard minimal doses (Weekend Warrior or Single-Set) until more evidence is available.

Flavonoids inhibit pancreatic lipase, alpha-amylase, and alpha-glucosidase, thereby reducing the hydrolysis and absorption of dietary fats and carbohydrates.

To potentially reduce fat and carbohydrate absorption, include flavonoid-rich foods (like berries, tea, citrus) in your diet. However, the paper relies on concentrated extracts and in vitro models, so normal dietary intake may not provide the same enzyme-inhibiting effects as studied supplements.

Flavonoids reduce oxidative stress and inflammation, which are key drivers of obesity and its comorbidities.

Incorporating flavonoid-rich foods can help reduce oxidative stress and inflammation, which are linked to obesity. This supports overall metabolic health but is not a substitute for a healthy diet and exercise.

Dietary carbohydrate intake between 45% and 65% of total calories is not associated with an increased risk of type 2 diabetes, with the lowest risk observed at 50% intake.

You do not need to eliminate carbohydrates to prevent type 2 diabetes. Aim for 45-65% of your daily calories from carbs, with 50% being the sweet spot for lowest risk. Focus on the quality of carbs (e.g., avoiding excessive refined grains like white rice in Asian populations) rather than just quantity.

Dietary carbohydrate intake exceeding 70% of total calories is associated with a significantly higher risk of type 2 diabetes, particularly in Asian populations.

If your diet consists of more than 70% of calories from carbohydrates, you may be at higher risk for type 2 diabetes, especially if you are of Asian descent. Consider reducing carbohydrate intake to the 50-65% range to lower this risk.

Acute carbohydrate ingestion significantly increases total resistance training session volume, but this ergogenic benefit is conditional on session duration exceeding 45 minutes and/or a pre-exercise fast duration of 8 hours or more.

If your resistance training session lasts longer than 45 minutes, or if you train fasted for 8+ hours (e.g., early morning), consume carbohydrates before or during the workout to increase the total volume you can complete. For short sessions (<45 min) or well-fed states, carbohydrate ingestion provides no significant performance benefit. The specific dose is less important than the total number of maximal effort sets performed.

Carbohydrate ingestion elevates post-exercise blood lactate and glucose levels, but this metabolic response may come at the cost of extended recovery time due to the increased training volume performed.

Expect higher blood lactate and glucose after carb-fueled workouts. This is normal and reflects the higher volume you completed. Be aware that this increased volume may lead to longer recovery times, so adjust your training frequency or intensity accordingly.

High intake of ultra-processed foods (UPFs) is associated with increased risk for obesity and cardiometabolic diseases (CMD), though causal mechanisms remain to be fully established.

While observational studies link high UPF intake to obesity and CMD risk, the exact mechanisms are complex. Focus on reducing intake of foods high in added sugars, sodium, and low in fiber, as these are common in UPFs. Be aware that 'processed' does not always mean 'unhealthy', but UPFs often contribute to excess energy intake.

Higher habitual dietary nitrate intake (≥84 mg/day), primarily from vegetables, is associated with stronger grip strength, faster physical function, and lower odds of falls in older adults.

Include nitrate-rich vegetables like spinach, arugula, or lettuce in your daily diet. A single cup (75g) of these provides enough nitrate (~135-362 mg) to support muscle strength and physical function, potentially reducing fall risk. This is a simple dietary addition that complements protein and calcium intake.

Consuming ≥3 serves of vegetables daily, particularly cruciferous and allium varieties, is associated with a significantly lower risk of injurious falls, fractures, and hip fracture-related hospitalizations in older women.

Eat at least 3 servings of vegetables daily, aiming for variety including cruciferous (broccoli, cabbage) and allium (onion, garlic) types. This habit is associated with a 41% lower risk of injurious falls and 27% lower risk of fractures in older women. Focus on diversity to ensure you get a range of nutrients like nitrate and Vitamin K.

Vegetarian and vegan diets are associated with a lower risk of ischemic heart disease and cancer, as well as lower mortality from cardiovascular diseases, compared to omnivorous diets.

Incorporating more plant-based foods and reducing meat intake may lower your risk of heart disease and cancer. This is a long-term lifestyle shift rather than a quick fix.

Post-exercise cooling (e.g., cold water immersion) applied in the early recovery phase (< 1 hour) improves fatigue resistance following endurance exercise in hot conditions and may enhance maximal strength recovery after resistance exercise.

If you train in the heat or do heavy lifting, a 10-30 minute cold water immersion (5-20°C) immediately after your session can help you recover strength and fatigue resistance faster. However, avoid this if you just did sprint intervals, as it may hurt your power output for the next session.