Browse the evidence

Frequent self-weighing (daily or weekly) is associated with greater weight loss, better weight maintenance, and prevention of initial weight gain in adults compared to infrequent or no self-weighing.

Weigh yourself daily or at least weekly. Use the data to adjust your diet or activity if you see a trend upward. This simple behavioral tool is associated with better long-term weight control compared to not weighing at all.

Weight loss app users value structure, ease of use, personalized features, and accessibility (including dual phone-computer access) as critical factors for sustained engagement.

Designers should prioritize user interface design, ease of use, and personalization to keep users engaged. Avoid making calorie counting the sole focus, as it can be limiting and discouraging.

Goal setting and feedback on calorie intake/energy balance are the most widely used behavior change techniques in popular weight loss apps.

Apps should include goal setting and feedback on calorie intake/energy balance, as these are the most widely used and valued behavior change techniques.

A personalized low-glycemic index (Low-GI) diet informed by nutrigenetic testing yields superior long-term weight loss and cardiometabolic improvements compared to a standard ketogenic diet, primarily through enhanced dietary adherence rather than immediate metabolic advantage.

If you are struggling to keep weight off after losing it, consider that 'one-size-fits-all' diets like Keto may not be sustainable for you long-term. A personalized approach that adjusts your carbohydrate and fat intake based on your genetic profile (specifically genes related to metabolism and sensitivity) can help you maintain weight loss and improve cholesterol and blood sugar levels. This works best when the diet is tailored to your biology, making it easier to stick to over the long haul.

The Mediterranean Dietary Score (MDS) is a valid tool for operationalizing adherence to the Mediterranean diet in epidemiological studies, though it is sample-dependent.

Use the MDS or similar scores to track adherence to a Mediterranean-style diet. Be aware that 'high adherence' is relative to your specific population sample. For absolute guidance, focus on the specific food group recommendations (high plants, healthy fats, low meat).

Weight loss interventions (both surgical and behavioral) lead to reduced neural activation in brain areas related to emotion, memory, and learning (cingulate gyrus, lentiform nucleus, precuneus) in response to visual food cues.

Successful weight loss, whether through surgery or lifestyle changes, appears to reduce the brain's intense reaction to food cues in areas related to emotion and memory. This suggests that maintaining weight loss can lead to a 'normalization' of neural responses, making it easier to resist food cues over time.

The timing of food intake, particularly for high-fat and high-sugar diets, is a critical determinant of metabolic health, with feeding during the inactive (light) period causing greater adverse effects than feeding during the active (dark) period.

Try to align your largest meals with your active hours. For most people, this means eating more during the day and less at night. This simple timing adjustment can improve how your body processes fats and sugars, reducing the risk of weight gain and metabolic issues.

Focused mass media campaigns targeting specific dietary factors (fruits, vegetables, salt) effectively improve population-level dietary intake.

If you are designing a public health initiative, focus your media budget on one clear, actionable message (like 'eat more veggies' or 'reduce salt') rather than vague health advice. Use multiple channels (TV, print, radio) in bursts to maximize reach.

Mobile monitoring and feedback tools embedded in primary care can enhance physical activity levels in patients with chronic diseases (COPD, Type-2 Diabetes) by combining self-monitoring, goal-setting, and automated feedback.

Use a mobile app with a hip-worn sensor to track your daily activity. Set a realistic daily goal in minutes of moderate-to-vigorous activity with your nurse. The app will give you immediate visual feedback (like a bar chart or sun icon) when you reach your goal. You can adjust your goal if you have a bad day, but do so thoughtfully. Review your progress with your nurse every few months.

Implementing a 30% financial incentive for fruits and vegetables (F&V) within the US Supplemental Nutrition Assistance Program (SNAP) increases F&V intake and prevents cardiovascular disease events, resulting in net healthcare cost savings over a lifetime.

If you are a policy maker or advocate, push for a 30% discount on fruits and vegetables for SNAP recipients. This specific financial incentive has been modeled to significantly reduce heart disease and save money on healthcare costs over the long term.

Restricting the purchase of sugar-sweetened beverages (SSBs) using SNAP funds, when combined with fruit and vegetable incentives, significantly amplifies cardiovascular disease prevention and healthcare cost savings compared to fruit and vegetable incentives alone.

Advocate for policies that not only incentivize healthy food purchases but also restrict the use of SNAP benefits for sugar-sweetened beverages. This combination yields much larger health benefits and cost savings than incentives alone.

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.

A national 10% subsidy on fruits and vegetables is the most effective single dietary policy for reducing cardiovascular disease mortality, potentially preventing approximately 150,500 deaths by 2030 in the US.

Implementing a national policy that reduces the price of fruits and vegetables by 10% is projected to save the most lives from cardiovascular disease compared to other single dietary interventions.

A combined policy approach, including a 10% SSB tax, a 10% national F&V subsidy, a 30% targeted F&V subsidy for SNAP participants, and a national mass media campaign, yields the greatest overall impact on reducing CVD mortality and disparities.

Implementing a comprehensive strategy that taxes sugary drinks, subsidizes fruits and vegetables for everyone, offers a larger subsidy for low-income participants, and runs a media campaign is projected to save the most lives and reduce health disparities.

A 30% fruit and vegetable subsidy targeted specifically at SNAP participants is the most effective policy for reducing cardiovascular disease socio-economic disparities.

Offering a 30% subsidy on fruits and vegetables to low-income individuals on SNAP is the most effective way to close the gap in cardiovascular disease mortality between low and high-income groups.

Combining a web-based weight management program with basic nurse support (3 sessions over 3 months) produces superior 12-month weight loss compared to web-based intervention alone, usual care, or regular nurse support (7 sessions over 6 months).

To lose more weight, combine a structured online weight loss program with a few brief check-ins with a nurse. Specifically, aim for three short support sessions (face-to-face, phone, or email) within the first three months. This 'basic support' approach was found to be more effective than receiving no support, receiving only the online program, or receiving frequent, long-term support. Focus on using the online tools for weekly weighing and goal setting, as adherence to these tasks was strongly linked to greater weight loss.

Strict, short-term lockdown-induced physical inactivity and dietary changes cause significant metabolic worsening (HbA1c increase >0.3%) in approximately 26% of well-controlled type 2 diabetes patients, with pre-lockdown triglyceride levels serving as a predictive marker for this deterioration.

If you have type 2 diabetes, your medication is not a shield against lifestyle collapse. During periods of forced inactivity or dietary change, your blood sugar can deteriorate rapidly, even if you feel 'well-controlled.' Monitor your levels closely during disruptions, and prioritize maintaining basic physical activity and dietary consistency, as these factors may outweigh your medication's immediate effect.

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.

Restricting the purchase of sugar-sweetened beverages (sodas, fruit punch, lemonade) and low-nutritional-value foods (candy) via SNAP benefits, potentially paired with financial incentives for healthy foods, is a policy strategy supported by stakeholders to improve dietary quality and prevent obesity among low-income beneficiaries.

For policymakers and program administrators, aligning SNAP eligibility with public health goals involves restricting the purchase of sugar-sweetened beverages and candy while providing financial incentives (like vouchers or bonus dollars) for fruits and vegetables. This approach addresses the high cost of healthy foods and the prevalence of unhealthy marketing in low-income communities, with strong support from stakeholders and SNAP participants themselves when incentives are included.

A 6-month behavioral weight-loss intervention using a specific dietary composition (high protein/fiber, low glycemic index) reverses obesity-related hyperactivation of the reward system to high-calorie food cues and increases activation to low-calorie food cues in the striatum.

To retrain your brain's reward system, follow a structured behavioral plan for 6 months that focuses on specific dietary composition rather than just calorie counting. Aim for meals with high fiber and protein (approx. 25% of energy) and low-glycemic carbohydrates (50% of energy), totaling at least 40g of fiber daily. Use portion control and 'free foods' (low-calorie items) to manage hunger. This approach has been shown to physically change brain activity, reducing the reward signal for junk food and increasing it for healthy food, which supports sustainable weight loss.

A 12-week smartphone app intervention targeting step goals significantly increases physical activity levels in patients with type 2 diabetes compared to standard care.

If you have type 2 diabetes, using a smartphone app to track and set daily step goals can help you increase your physical activity. The app allows you to set a goal (up to 10,000 steps) and adjusts it every two weeks based on your progress. This digital support is designed to complement your standard medical care, not replace it.

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.

Automated indexing of personal health behavior change stories significantly increases self-efficacy for weight loss compared to randomly selected stories.

To boost your confidence in losing weight, seek out personal stories that specifically match your background and current mindset. Instead of reading random advice, look for narratives from people who are at the same stage of change as you and share your demographic traits. This tailored approach is more likely to increase your belief that you can succeed.

Providing individual consultation to patients in group weight management programs significantly improves retention rates.

Ask your weight management program if they offer one-on-one consultations. This personalized attention is linked to a much higher chance of sticking with the program and achieving your goals.