Browse the evidence

Supplementing with 25g whey protein and 4000 IU vitamin D3, consumed either before bedtime or in the morning after sleep, significantly increases total lean tissue mass and leg lean tissue mass in young males undergoing resistance training compared to a placebo.

If you are a young man starting resistance training and you know you are low in Vitamin D, take 25g of whey protein mixed with 4000 IU of Vitamin D3 every day. It does not matter if you take it in the morning or right before bed; just take it daily alongside your training. This combination will help you build more muscle mass than training alone.

GLP-1 receptor agonists (GLP-1RAS) significantly reduce body weight and improve glucose tolerance in prediabetic patients, offering a potent alternative to metformin, particularly for those with obesity.

GLP-1 receptor agonists (like semaglutide or liraglutide) are injectable medications that significantly reduce weight and improve blood sugar in prediabetes. They are particularly effective for overweight individuals. Side effects like nausea are common initially. They are more potent than metformin for weight loss but require injection.

Vitamin D supplementation (≥ 1000 IU/day) reduces the risk of developing diabetes in individuals with prediabetes by improving insulin sensitivity and beta-cell function.

If you have prediabetes, check your Vitamin D levels. Supplementation with ≥ 1000 IU/day can significantly reduce your risk of developing diabetes by improving insulin sensitivity. Monitor calcium levels to avoid hypercalcemia.

Obesity is a modifiable risk factor for pancreatic cancer (PC), with a 5-unit BMI increase associated with an 8-12% rise in PC risk.

Maintaining a healthy weight, especially around the abdomen, is important for reducing your risk of pancreatic cancer. Obesity is linked to an 8-12% increase in risk for every 5-unit increase in BMI.

Achieving a weight loss of 10% or greater is required to induce type 2 diabetes remission and prevent microvascular disease, chronic kidney disease progression, cardiovascular events, and overall mortality.

To potentially reverse type 2 diabetes and protect your kidneys and heart, aim to lose more than 10% of your body weight. This is a significant amount of weight and is difficult to achieve and maintain through diet and exercise alone due to your body's natural drive to regain weight. You likely need high-efficacy medical interventions (like GLP-1/GIP agonists or bariatric surgery) or intensive lifestyle programs to reach this threshold. Focus on reducing visceral fat and improving adipose tissue function, not just hitting a specific BMI number.

Intensive, multicomponent lifestyle intervention (diet, exercise, behavioral counseling) remains foundational and synergistic with anti-obesity medications (GLP-1 RAs), improving outcomes and mitigating side effects, whereas relying on medication alone without lifestyle support may lead to suboptimal results and higher discontinuation.

Do not skip lifestyle changes just because you are taking weight-loss medication. Combine your medication with a structured plan involving diet, exercise, and behavioral counseling. This approach maximizes your weight loss, helps you keep the weight off, and can reduce medication side effects like nausea. Aim for 200-300 minutes of moderate exercise per week and attend intensive counseling sessions (at least 12 in the first year).

Tirzepatide, a dual GIP/GLP-1 receptor agonist administered as a once-weekly injection, produces significantly greater weight loss and glycemic control in adults with obesity and type 2 diabetes compared to placebo, semaglutide, and long-acting insulin analogs.

If you have obesity and Type 2 Diabetes, standard diet and exercise may not be enough to control your blood sugar or achieve significant weight loss. Tirzepatide is a once-weekly injection that targets both GLP-1 and GIP hormones to improve insulin response, reduce appetite, and slow digestion. Clinical data shows it leads to greater weight loss than placebo, semaglutide, and insulin analogs. However, it carries risks of gastrointestinal side effects (nausea, vomiting) and is contraindicated for those with a history of medullary thyroid cancer. Consult a doctor to see if this high-efficacy intervention is appropriate for your specific health profile.

Whey protein supplementation (25 g/day for 13 days) significantly reduces exercise-induced muscle damage, as measured by serum creatine kinase (CK) levels, in older adults following prolonged walking, whereas pea protein supplementation at the same dose does not.

If you are over 60 and engage in long-distance walking, whey protein (25g/day) may help reduce muscle damage markers more effectively than pea protein. Ensure you consume it consistently for at least 13 days, starting before your activity.

Lifestyle interventions for type 2 diabetes prevention in women with a history of gestational diabetes are significantly more effective when initiated within one year postpartum.

If you have a history of gestational diabetes, start your lifestyle changes (diet and exercise) within the first year after giving birth. Waiting longer significantly reduces the effectiveness of these changes in preventing type 2 diabetes. Early action during this critical window offers the best protection.

Electronic or mobile delivery of lifestyle interventions (websites, phone, text) results in greater body weight reduction in women with a history of gestational diabetes compared to face-to-face only delivery.

If you have a history of gestational diabetes and want to lose weight, consider using electronic or mobile lifestyle interventions (websites, phone, text messages). These methods have been shown to result in greater weight loss compared to face-to-face only interventions.

Weight reduction of 5-10% improves metabolic risk factors, while reduction of ≥10-15% consistently improves sleep apnea, reduces new-onset type 2 diabetes, and reduces overall mortality.

Aim for a 5-10% weight loss to improve metabolic markers, and 10-15% or more to significantly impact sleep apnea and mortality. Focus on sustainable energy balance rather than specific diet dogmas, as weight loss itself is the primary driver of remission for conditions like T2DM.

Physical activity of ≥5000 steps per day is a reasonable initial goal for obesity management, with ≥10,000 steps associated with greater weight reduction.

Start with 5000 steps per day. This is achievable and offers health benefits. If you can increase to 10,000 steps, you may see greater weight loss. Use walking as a tool for maintenance and metabolic health, not just calorie burning.

Weight loss of at least 5-10% significantly lowers systolic and diastolic blood pressure in obese individuals, and this effect is independent of the specific weight loss strategy used.

Achieving a 5-10% weight loss can significantly lower blood pressure (5-20 mmHg systolic). This benefit is achieved regardless of the method used (diet, exercise, or medication). Targeting at least 10% weight loss is recommended for most patients to see meaningful improvements in obesity-related complications.

Subcutaneous tirzepatide is the most cost-effective anti-obesity medication for adults without diabetes over a 68-week period, demonstrating superior incremental cost-effectiveness compared to oral semaglutide, subcutaneous semaglutide, and subcutaneous liraglutide.

For adults without diabetes seeking weight loss, subcutaneous tirzepatide offers the best value for money among current GLP-1 based therapies over a 68-week period. It is more cost-effective than oral semaglutide, subcutaneous semaglutide, and subcutaneous liraglutide. While oral semaglutide is a good alternative for those who dislike injections, tirzepatide provides superior cost-effectiveness. Patients should discuss these options with their healthcare provider, considering factors like injection preference, insurance coverage, and potential side effects.

A daily caloric deficit of at least 600 kcal, achieved through dietary intervention, is the foundational mechanism for sustainable weight loss and can induce type 2 diabetes remission.

To lose weight, you must consume fewer calories than you burn. Aim for a daily deficit of 600 kcal. You can achieve this through various diets (Mediterranean, low-carb, etc.), but the key is choosing one you can sustain. If you have type 2 diabetes, a more aggressive low-energy diet under medical supervision may help achieve remission.

Optimizing medications by switching from weight-gain-causing drugs (antipsychotics, sulfonylureas, insulin) to weight-neutral or weight-loss agents (aripiprazole, SGLT2i, GLP-1 RA) facilitates weight management.

If you are gaining weight on psychiatric or diabetes medications, ask your doctor about switching. Some drugs cause significant weight gain, while others are weight-neutral or help you lose weight (like SGLT2 inhibitors or GLP-1 agonists). This optimization can support your weight loss efforts without compromising your primary health condition.

Significant weight loss achieved through very low calorie diets (VLCD) or bariatric surgery can preserve and enhance beta-cell function in type 2 diabetes, particularly in patients with short disease duration.

If you have Type 2 Diabetes, especially if diagnosed recently, significant weight loss is the most effective way to restore your pancreas's ability to make insulin. This can be achieved through bariatric surgery or a strict 600-calorie daily diet for a short period (1-8 weeks). This is not just about weight loss; it is about 'resting' the beta-cells to restore their function.

Resistance-based exercise and protein supplementation are the most consistently effective strategies to treat sarcopenic obesity, with combination therapies showing more positive results.

To treat sarcopenic obesity, combine resistance exercise with adequate protein intake. This combination is more effective than either alone. Consult a professional to design a safe and effective program.

Ingesting a 30g blend of 25g whey and 5g collagen protein increases both myofibrillar and muscle connective protein synthesis rates in the rested leg of young, recreationally active men.

If you want to support both muscle growth and connective tissue health (tendons/ligaments) after resistance training, try a protein blend containing 25g of whey and 5g of collagen. This specific ratio appears to optimize the amino acid profile (leucine for muscle, glycine for connective tissue) better than whey or collagen alone in young, active men.

GLP-1 receptor agonists (GLP-1 RAs) are effective for preoperative weight loss in orthopaedic surgery patients with obesity and type-2 diabetes, reducing surgical risk without increasing postoperative complications.

If you are having orthopaedic surgery and take GLP-1s (like Ozempic or Wegovy), tell your surgeon and anesthesiologist. You likely need to stop taking them a week before (for weekly doses) or on the day of (for daily doses) to prevent stomach issues during anesthesia. This helps ensure your surgery goes smoothly and reduces infection risk.

Higher dietary protein intake (1.2-1.6 g/kg/d) during energy restriction preserves lean mass and promotes fat loss more effectively than lower protein intakes.

When cutting calories to lose fat, aim for 1.2 to 1.6 grams of protein per kilogram of body weight daily. This helps you keep your muscle while losing fat, making your weight loss healthier and more sustainable.

Combined resistance training (upper and lower body) produces significantly greater improvements in muscle-related hormonal markers (follistatin, follistatin/myostatin ratio, adiponectin) and inflammatory reduction (myostatin, CRP) compared to isolated upper or lower body training in overweight and obese men, primarily driven by higher total training volume.

If you are overweight or obese and want to maximize hormonal health and reduce inflammation through resistance training, prioritize a combined upper and lower body routine over isolating specific body parts. Perform this routine 3 times per week, progressively increasing the weight (from 50% to 80% of your one-rep max) over 12 weeks. This approach yields significantly better improvements in muscle-building hormones and inflammation reduction than training only your upper or lower body.

Combining a caloric deficit (500–750 kcal/day) with moderate-to-vigorous aerobic exercise (150–420 min/week) is significantly more effective for weight loss than either diet or exercise alone.

To lose significant weight, you must change your diet. Exercise alone rarely leads to major weight loss. Combine a daily caloric deficit of 500-750 calories with 150 minutes of moderate exercise per week for the best results. Aim for 225-420 minutes of exercise weekly if you want to keep the weight off.

Tirzepatide, a dual GIP/GLP-1 receptor agonist, provides superior glycemic control and weight loss compared to GLP-1 receptor agonists alone, while offering cardioprotective benefits through lipid lowering and anti-inflammatory mechanisms.

Tirzepatide is a once-weekly injection that activates two gut hormones (GIP and GLP-1) to lower blood sugar, reduce appetite, and protect the heart. It is more effective than older GLP-1 drugs for weight loss and blood sugar control. Start with a low dose to minimize stomach upset, and work with your doctor to find the right dose for you.