Browse the evidence

High-frequency self-weighing (≥3 times per week) is a significant predictor of clinically significant weight loss (≥5% baseline weight) in commercial weight-loss interventions.

Weigh yourself at least three times a week. Do not weigh daily if it causes stress, but do not skip weeks. Consistency is the key predictor of success. Use the data to adjust your behavior, not to judge your worth.

Logging food intake on at least three days per week is a significant predictor of clinically significant weight loss (≥5% baseline weight).

Log your food on at least three days a week. You do not need to log every single day to see results. Consistency in logging, even if partial, is a strong predictor of weight loss success.

Altering the default order of food products in an online supermarket to display items in ascending order of saturated fat content significantly reduces the percentage of energy from saturated fat in the shopping basket.

If you are designing an online grocery platform, sort products within categories by their saturated fat content in ascending order (lowest SFA at the top). This environmental nudge significantly reduces the saturated fat content of the shopping basket compared to random ordering or offering explicit swaps. This works best when the sorting is not explicitly labeled to the user, relying on the 'default' effect.

Providing augmented feedback (visual or verbal) during resistance training significantly enhances acute performance metrics, specifically increasing barbell velocity by approximately 8.4% compared to no feedback.

Use visual or verbal feedback during your resistance training sets. Specifically, provide feedback after every repetition rather than just at the end of a set. Visual feedback (seeing the data) is more effective than verbal feedback (hearing the data). This will likely increase your barbell speed and overall workout quality.

Visual feedback is significantly more effective than verbal feedback for enhancing acute resistance training performance.

If you have access to visual feedback tools (like velocity-based training devices or apps), use them. They are more effective than just hearing numbers from a coach. Displaying the data visually helps you push harder and faster.

Digital Cognitive Behavioral Therapy (CBT) delivered via a mobile platform with daily psychologist feedback and assignments significantly improves weight loss and weight maintenance compared to self-directed digital tools in young adults with obesity.

If you are between 18 and 39 with a BMI between 25 and 40, using a digital CBT app with daily psychologist feedback and assignments for 8 weeks is a viable strategy for weight loss. This approach is more effective than using digital tools for self-care (like food diaries) alone. Ensure you have a smartphone and are motivated to use it.

Performing resistance exercise once per week (Weekend Warrior) or using single-set protocols significantly increases muscle strength in untrained individuals compared to no exercise, despite volumes being lower than standard guidelines.

If you are not currently exercising, start with just one session per week or do single sets of exercises. You do not need to follow complex multi-set routines to get stronger. Consistency with a minimal dose is better than no exercise at all.

Both high-intensity (recording all dietary intake) and low-intensity (recording specific dietary components) self-monitoring strategies are effective in supporting statistically significant weight loss in behavioral interventions for adults with overweight or obesity.

You can lose weight by tracking your diet, and you don't have to track every single calorie to see results. You can choose to track all your food (high intensity) or just specific items like sugary drinks or snacks (low intensity). Both approaches have been shown to produce significant weight loss compared to no intervention. The key is consistency and using the method that you can sustain, whether that is a paper log, an app, or a phone call.

A multi-channel, information technology-enabled health promotion intervention significantly reduces daily intake of fat, sugar, and salt while increasing fruit and vegetable consumption in urban adults.

Adopt a multi-channel approach to dietary improvement. Use technology (SMS, apps) for reminders and education, but pair it with tangible tools like measuring spoons and visual guides (e.g., a table mat) to make tracking fat, sugar, and salt intake easier. This combination was shown to significantly improve diet quality over six months in diverse urban populations.

Tirzepatide significantly reduces ad libitum energy intake and body weight in adults with overweight or obesity, primarily by decreasing fasting appetite, food cravings, and disinhibition rather than increasing cognitive restraint.

Tirzepatide, a once-weekly injectable medication, significantly reduces food intake and body weight in adults with overweight or obesity. It works by lowering appetite, reducing food cravings, and decreasing the tendency to overeat, rather than by increasing willpower or cognitive restraint. While gastrointestinal side effects like nausea are common, they are often mild and tend to occur more frequently after the first injection. This suggests that tirzepatide can be an effective tool for managing energy intake and promoting weight loss, particularly for those who struggle with appetite and cravings.

Objective dietary assessment methods, such as biomarkers of food intake (BFIs) and image-based assessment, are superior to subjective methods (like 24-hour recalls) for monitoring dietary intake and improving adherence in obesity management.

To get the most out of your diet plan, use objective tools to track what you eat. Instead of relying on memory, which can be inaccurate, use apps that take photos of your meals or, if available, biomarker tests (like urine or blood tests) to verify your intake. This reduces guesswork and helps you stay on track with your personalized nutrition plan.

Intensive lifestyle modification (diet and exercise) reduces cardiovascular risk in Type 2 Diabetes patients, but long-term maintenance of weight loss is difficult, and significant risk reduction is only seen in those who maintain >10% weight loss.

Losing weight through diet and exercise is one of the best things you can do for your heart if you have Type 2 Diabetes. However, it is hard to keep the weight off. If you can lose and keep off more than 10% of your body weight, your risk of heart problems drops significantly. Even if you can't maintain that much weight loss, any improvement in your diet and activity level is beneficial. Don't be discouraged if you regain some weight; focus on making sustainable changes.

Supervised resistance training produces a small but statistically significant improvement in performance and functional outcomes compared to unsupervised training, with a moderate effect specifically for strength gains.

If you are training alone, expect slightly slower strength gains compared to having a coach. Supervision helps you lift heavier loads with better technique and closer to failure, which drives adaptation. If you cannot afford a coach, use video self-analysis or training logs to mimic the feedback loop of supervision.

Slow Typology (ST) individuals must perform a significantly higher training volume to achieve the same hypertrophic and strength adaptations as Fast Typology (FT) individuals when training to failure.

If you find yourself needing to do more sets or reps than others to see muscle growth, this is normal for your muscle type. Do not compare your volume to others. Focus on completing your sets to failure, and you will achieve similar strength and muscle gains.

Increasing training frequency from 2x/week to 3x/week increases muscle hypertrophy but not maximal dynamic strength, regardless of muscle typology.

If your goal is to build muscle, training 3 times a week is likely more effective than 2 times a week, even if you only add one extra session. This benefit applies to everyone, regardless of their muscle fiber type. However, this extra frequency may not translate to greater strength gains, so prioritize hypertrophy if that is your goal.

Regular aerobic and resistance exercise training significantly improves cardiorespiratory fitness (VO2peak) in adults with type 2 diabetes, with greater relative improvements observed in those with lower baseline fitness.

If you have type 2 diabetes and feel too tired or uncomfortable to exercise, start with 'conditioning' rather than intense workouts. Focus on gentle stretching, warm-ups, and cool-downs. Supervised aerobic exercise (60 mins, 3x/week at 70-85% max heart rate) has been shown to significantly improve your fitness (VO2peak) even more than in non-diabetic peers. Use wearable trackers or continuous glucose monitors for real-time feedback to boost motivation and self-efficacy.

The use of Continuous Glucose Monitors (CGMs) as a real-time feedback tool increases self-efficacy, exercise attendance, and total exercise time in adults with type 2 diabetes, even in those not on intensive insulin therapy.

If you have type 2 diabetes, using a Continuous Glucose Monitor (CGM) during exercise can help you see how your body responds in real-time. This feedback can boost your confidence (self-efficacy) and motivate you to exercise more, even if you aren't on insulin. Look for programs that cover CGMs for behavior change, as they can lead to increased exercise time and better metabolic control.

Wearable activity trackers (e.g., Fitbit) significantly increase daily step count and walking minutes in adults with type 2 diabetes compared to non-tracker interventions.

Wearing a simple activity tracker like a Fitbit can help you walk more. Studies show it adds an average of 627 steps per day. Set simple step goals and use the real-time feedback to stay motivated. Social accountability, such as sharing progress with a coach or group, can further enhance adherence.

Internet-based personalised nutrition interventions yield greater dietary improvements in older adults, women, and individuals with lower baseline diet quality compared to general dietary advice.

If you are older, female, or currently eating a low-quality diet, you are statistically more likely to see significant dietary improvements from a personalised online nutrition program than younger men with already healthy diets. Look for programs that offer deep personalization (genetic/phenotypic data) if you fall into these high-benefit categories.

Psychological factors, specifically the desire to improve health and self-efficacy, are stronger predictors of benefit from personalised nutrition than genetic risk alleles.

Your mindset matters more than your DNA when starting a personalised nutrition plan. If you are motivated to improve your health and believe you can stick to healthy choices, you are more likely to succeed. Don't let genetic test results discourage you; focus on building self-efficacy.

A personalized, team-based lifestyle intervention (dietitian, kinesiologist, physician) improves dietary quality and reduces energy intake in patients with metabolic syndrome, with the most significant improvements occurring within the first 3 months and being maintained at 12 months.

If you have metabolic syndrome, don't try to force yourself into a rigid, one-size-fits-all diet. Instead, work with a team (doctor, dietitian, exercise expert) to make small, personalized changes to your food habits. Focus on increasing fruits, vegetables, and nuts, and reducing processed foods and sugars. You will likely see the biggest improvements in your diet quality within the first 3 months, and these changes can be maintained long-term without needing to be perfect.

A 1-year mHealth intervention using motivational interviewing calls and SMS text messages produces sustained, statistically significant reductions in body weight and BMI four years after the intervention concludes, with greater effects observed in participants receiving at least 50% of the scheduled calls.

If you have prehypertension and live in a resource-limited setting, a structured mobile health program involving monthly coaching calls and weekly text reminders can help you lose weight and keep it off for years. You don't need to be perfect; receiving half or more of the scheduled calls was enough to see significant, lasting benefits in body weight and BMI. Focus on the core behaviors: reducing sodium, fat, and sugar, while increasing fruits, vegetables, and physical activity.

Intensive lifestyle modifications, specifically combining calorie-reduced/low-sodium diets (e.g., DASH) with regular exercise, are the foundational first-line management strategy for obesity-related hypertension, aiming for 5-10% body weight loss.

Start with a DASH-style diet (low sodium, high fruits/veg) and regular exercise. Aim to lose 5-10% of your body weight over 6 months. This is the most effective non-drug way to lower blood pressure. Be prepared that maintaining this requires ongoing support because the 'yo-yo effect' is real.

Initiating moderate-to-vigorous exercise after a new diagnosis of type 2 diabetes significantly reduces the risk of myocardial infarction, stroke, and all-cause mortality compared to remaining sedentary.

If you were just diagnosed with type 2 diabetes, start moving now. You do not need to be an athlete. Aim for at least 150 minutes of moderate activity (like brisk walking) per week. This single change can lower your risk of heart attack, stroke, and death by about 15-16% compared to staying sedentary.