Browse the evidence

Achieving a weight loss of ≥5% is clinically meaningful for improving cardiometabolic risk factors and is the threshold for FDA approval of anti-obesity medications, though greater losses (≥10-15%) are required for remission of conditions like type 2 diabetes and NASH.

Aim for a 5% weight loss as a primary, achievable goal to significantly improve your heart health and metabolic markers. If you have specific conditions like Type 2 Diabetes or NASH, discuss with your doctor if a higher target (10-15%) is needed for remission, but do not let the higher target discourage you from starting with the 5% goal, which brings substantial health benefits.

Lifestyle interventions, specifically a Mediterranean diet and 150-300 minutes of moderate or 75-150 minutes of vigorous exercise weekly, are recommended to induce weight loss and improve cardiovascular risk factors in patients with Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD).

Adopt a Mediterranean-style diet focused on reducing total calories, saturated fats, and processed sugars while increasing intake of fish, vegetables, nuts, and fiber. Combine this with at least 150 minutes of moderate exercise (like brisk walking) or 75 minutes of vigorous exercise per week. Aim for a 5-10% reduction in body weight to significantly improve liver health and cardiovascular risk.

Weight loss is achieved through a negative energy balance, and macronutrient composition (low-carb vs. low-fat) has no major independent impact on weight loss outcomes when caloric deficit is matched.

To lose weight, you must consume fewer calories than you burn. The specific type of diet (low-carb, low-fat, etc.) matters less than maintaining a consistent daily energy deficit of about 500 kcal. Adjust your intake as you lose weight to maintain the deficit.

Structured low-calorie total diet replacement (825–853 kcal/day) for 12–20 weeks followed by food reintroduction can induce remission of type 2 diabetes in a significant subset of patients, defined as HbA1c <48 mmol/mol without diabetic medications.

If you have Type 2 Diabetes and obesity, ask your doctor about a Total Diet Replacement (TDR) program. This involves consuming 825-853 calories a day for 3-5 months using specific meal replacements, followed by a gradual return to solid foods. This approach has been shown to put diabetes into remission for over a third of participants, especially if you lose 10kg or more. It requires medical supervision to adjust your diabetes medications safely.

Bariatric surgery is a safe, effective, and durable treatment for severe obesity in people with Type 2 Diabetes, leading to significant weight loss and high rates of diabetes remission, yet it remains significantly underutilized.

If you have severe obesity and Type 2 Diabetes, bariatric surgery is the most effective treatment for long-term weight loss and diabetes remission. It is recommended for those with a BMI over 35, or over 30 if your diabetes is recent. Despite being safe and effective, it is underused. Discuss with your specialist if you are a candidate, keeping in mind the need for lifelong vitamin supplementation and monitoring.

Weight loss of 15 kg can induce remission of Type 2 Diabetes in approximately 70% of individuals, and even smaller weight losses (5 kg) improve insulin sensitivity and glycemic control, highlighting the primacy of lifestyle interventions in diabesity management.

Losing weight is the most powerful tool for managing Type 2 Diabetes. Losing 15 kg can put diabetes into remission for about 70% of people. Even losing 5 kg improves how your body uses insulin. To succeed, combine dietary changes (like Mediterranean or low-carb diets) with regular exercise. Focus on stepwise, realistic goals rather than quick fixes to ensure long-term success.

Replacing saturated fatty acids (SFA) with polyunsaturated fatty acids (PUFA), particularly plant-based ePUFAs, is associated with less long-term weight gain and reduced risk of obesity in prospective cohort studies.

To prevent age-related weight gain, replace saturated fats (found in animal products) with polyunsaturated fats (found in plant oils, nuts, seeds). This substitution is associated with less long-term weight gain compared to diets high in saturated fats or trans fats.

In adults with type 2 diabetes, a 10% reduction in fat mass (FM) over one year is significantly associated with a lower risk of incident heart failure (HF), whereas changes in lean mass (LM) are not significantly associated with HF risk.

If you have type 2 diabetes, losing fat mass is a powerful way to lower your risk of heart failure. This study shows that a 10% drop in fat mass significantly reduces risk, while losing muscle mass does not have the same protective effect. Focus your lifestyle efforts on reducing fat through diet and activity, rather than worrying excessively about losing muscle during weight loss.

Time-restricted feeding (16:8) and macronutrient-based diets (MBD) produce equivalent reductions in body weight, fat mass, and waist circumference in physically active, overweight individuals, provided adherence exceeds 70%.

You can lose fat using either a 16:8 fasting window or by tracking macros/calories, as long as you maintain a caloric deficit. The key is adherence: you must follow the plan more than 70% of the time. If you struggle with counting macros, try 16:8. If you struggle with fasting windows, track macros. Both require consistency to see changes in weight and waist size.

For type 2 diabetes prevention, reducing body weight (BMI) is more effective than improving cardiorespiratory fitness (CRF) alone.

To prevent type 2 diabetes, losing weight is more impactful than just getting fit. If you are overweight, focus on weight loss first, as it reduces diabetes risk more significantly than improving fitness alone. However, maintaining fitness is still beneficial and should be part of your overall strategy.

Lifestyle interventions achieving 7-10% body weight loss are effective in resolving nonalcoholic steatohepatitis (NASH) and regressing fibrosis in patients with metabolic-associated fatty liver disease (MAFLD).

To reverse liver inflammation and fibrosis, you need to lose 7-10% of your body weight through diet and exercise. Losing more than 10% can even reverse scarring (fibrosis). The hardest part is sticking with it, as most people fail to reach these targets. Combine a calorie-restricted diet (like the Mediterranean diet) with 150-300 minutes of moderate exercise per week.

Higher objectively assessed moderate-to-vigorous intensity physical activity (MVPA) at year 4 is significantly associated with greater long-term weight loss (4-year WL) in individuals with type 2 diabetes, independent of initial weight loss.

For long-term weight loss maintenance in type 2 diabetes, consistent moderate-to-vigorous physical activity (MVPA) matters more than how much you lost in the first year. Aim for higher weekly minutes (ideally >= 250 min/wk) as this is linked to greater long-term weight loss. However, if you cannot sustain high volumes, know that maintaining weight with lower activity (< 150 min/wk) is possible, likely supported by strict dietary adherence. Do not let the inability to hit 'expert' exercise targets discourage you from maintaining your weight.

Long-term maintenance of significant weight loss requires large, persistent increases in physical activity (PA), whereas changes in energy intake (EI) do not significantly correlate with long-term weight regain.

If you have lost a significant amount of weight, maintaining that loss requires a substantial and sustained increase in daily physical activity, likely exceeding 80 minutes of moderate activity per day. Simply maintaining a reduced calorie intake is insufficient for most people to prevent weight regain; the energy expenditure from activity must be high enough to offset metabolic adaptations.

Moderate weight loss (5-10%) achieved through a low-calorie diet and lifestyle intervention significantly improves weight-specific health-related quality of life (HRQOL), particularly physical function, self-esteem, and sexual life, and these improvements are largely maintained during a 52-week weight loss maintenance phase despite minor weight regain.

If you are overweight and lose 5-10% of your body weight through a structured diet and exercise plan, you can expect significant improvements in how you feel physically, your self-esteem, and your sexual life. These benefits tend to stick around even if you gain a small amount of weight back later, as long as you maintain a stable weight. Focus on the initial loss and then consistent maintenance rather than perfection.

Greater magnitude of weight loss (>= 10%) is associated with significantly greater improvements in weight-specific HRQOL (total score, physical function, self-esteem, sexual life) compared to smaller weight loss (< 5%).

Aiming for 10% or more weight loss yields the best improvements in physical function, self-esteem, and sexual life. However, even losing 5-9% provides significant quality of life benefits, particularly for your overall sense of well-being. Don't dismiss smaller losses; they matter.

Intensive lifestyle interventions, including Medical Nutrition Therapy (MNT), can lead to significant weight loss and diabetes remission in over 60% of participants in the MENA region.

Seek out a certified dietitian for intensive, personalized lifestyle counseling. This approach, which combines dietary changes and physical activity, has been shown to help over 60% of patients in the MENA region achieve remission from type 2 diabetes within a year.

Regular physical activity, specifically at least 150 minutes per week of moderate aerobic exercise combined with resistance training, independently improves liver fat, prevents fibrosis and cirrhosis, and reduces mortality in NAFLD patients, even without significant weight loss.

Aim for 150 minutes of moderate exercise per week, such as brisk walking, cycling, or swimming. Add resistance training (weight lifting) if possible. Start with 30 minutes a day if 150 minutes feels overwhelming. Exercise helps your liver directly, even if the scale doesn't move much.

Time-restricted eating combined with resistance training reduces fat mass to a similar extent as habitual diet combined with resistance training, without compromising fat-free mass.

If your goal is simply to lose fat while building muscle, you don't need to restrict your eating window. Eating normally throughout the day with resistance training yields the same fat loss and muscle preservation as an 8-hour eating window, provided you eat enough.

Physical activity contributes to modest weight loss and improved weight-loss maintenance, with effects potentially occurring in a dose-response manner based on the magnitude of activity performed.

Engage in regular physical activity to support modest weight loss and improve long-term weight maintenance. The benefits follow a dose-response relationship, meaning more activity generally leads to greater weight loss, especially when combined with dietary changes.

Maintaining energy availability above 30 kcal/kg fat-free mass per day is required to prevent significant reductions in circulating testosterone; deficits below this threshold suppress luteinizing hormone (LH) and subsequently lower testosterone.

If you are training hard and restricting calories, monitor your energy availability. Aim for at least 30 kcal per kg of fat-free mass per day. If you feel fatigued or performance drops, your testosterone may be suppressed by the deficit. Prioritize eating enough to support your training volume before focusing on further fat loss.

Weight loss of 7-10% of body weight leads to significant resolution of NASH and fibrosis regression in patients with NAFLD.

To reverse fatty liver disease and NASH, you need to lose 7-10% of your body weight. If you have advanced fibrosis, aim for over 10% loss. Start with a daily calorie deficit of 500-1000 kcal and aim for at least 150 minutes of exercise per week. Even losing 3-5% helps reduce liver fat and improves insulin sensitivity, so don't wait for the full 10% to see benefits.

Achieving a weight loss of greater than 5% is independently associated with slower progression of the frailty index in adults with type 2 diabetes, regardless of HbA1c levels.

Losing more than 5% of your body weight is linked to slower physical decline in people with type 2 diabetes. This benefit holds true even if your blood sugar levels don't change drastically. Focus on sustainable weight loss through diet and exercise.

A well-designed vegan diet is effective for reducing body mass and improving body composition in overweight or obese adults, particularly when combined with physical activity.

Adopt a whole-food plant-based diet to lose weight. You do not necessarily need to count calories, as the diet naturally promotes satiety. Combine this with regular physical activity, including resistance training, to preserve muscle mass.

Maintaining a weight loss of ≥7% of initial body weight for a sustained proportion of time (Time in Target Range, TTR) is associated with a significantly lower risk of composite kidney outcomes in patients with overweight/obesity and type 2 diabetes.

For individuals with type 2 diabetes and overweight/obesity, the goal should not just be to lose weight, but to keep it off. Aim to maintain a 7% reduction from your starting weight. Even if you fluctuate, spending more time within this target range significantly lowers your risk of kidney disease. This involves a combination of eating fewer calories and moving more, supported by regular counseling or self-monitoring.