Browse the evidence

Inhibitors of histone deacetylases (HDACs) can restore lost memories and reverse cognitive phenotypes in mouse models of Alzheimer's disease by targeting locus-specific chromatin alterations.

Current research indicates that HDAC inhibitors show promise in restoring memory in animal models of Alzheimer's. However, these are experimental therapies not yet available for human use. Focus on proven lifestyle interventions like exercise and cognitive engagement to support brain health.

Black carrot anthocyanins and polyacetylenes (falcarinol) exhibit anti-proliferative and cytotoxic effects against cancer cell lines (specifically colon, breast, prostate, and leukemia) in vitro.

Black carrots contain high levels of anthocyanins and polyacetylenes that show promise in laboratory studies for fighting cancer cells. However, these are in vitro results. Eating black carrots is a healthy dietary choice that contributes to overall disease prevention, but it is not a treatment for cancer. Consult a doctor for medical advice.

Better neighborhood social environments (safety, social cohesion, aesthetic quality) are not consistently associated with lower BMI, and in men, are associated with higher BMI.

Don't assume that moving to a 'safer' or 'nicer' neighborhood will automatically help you lose weight. For men, this study even found a link to higher BMI. Focus on controllable factors like diet and exercise rather than relying on social environment metrics for weight management.

Obesity-associated DNA damage in germ cells (sperm and oocytes) can be transmitted to offspring, potentially causing de novo mutations and affecting the health of future generations.

If you are obese and planning to have children, your current health status can impact your child's genetic health. Obesity can cause DNA damage in sperm and eggs, which may lead to mutations or metabolic issues in the child. Preconception weight management and healthy lifestyle choices can help reduce these risks for your future offspring.

Psychological factors such as childhood adversities (neglect, trauma, deprivation) have insufficient evidence to draw conclusions about their specific impact on type 2 diabetes or obesity risk.

While childhood trauma is serious and can contribute to stress, current scientific evidence does not support it as a primary, standalone cause of diabetes or obesity. The link between socioeconomic status and metabolic health is much stronger and better established. Focus on managing known risk factors like diet, exercise, and stress, rather than attributing metabolic disease solely to past trauma.

Elevated skeletal muscle expression of myostatin, but not ubiquitin proteasome components, is a key molecular mechanism driving post-liver transplantation sarcopenia.

This finding suggests that post-transplant muscle loss might be driven by hormonal signals (myostatin) rather than just protein breakdown. While this is based on a very small group, it hints that future treatments might need to target these specific hormones to help patients regain muscle mass after surgery.

Extra-virgin olive oil polyphenols (e.g., oleocanthal, oleuropein, hydroxytyrosol) exhibit anticarcinogenic properties in vitro and in animal models by inducing apoptosis and inhibiting proliferation.

Consume extra-virgin olive oil regularly to benefit from its polyphenols, which have shown anticarcinogenic mechanisms in lab studies. Focus on high-quality, phenol-rich EVOO.

Antibiotic treatment (specifically norfloxacin and ampicillin) improves fasting blood glucose and oral glucose tolerance in obese, insulin-resistant mice by reducing plasma LPS levels and intestinal inflammation.

While antibiotics can improve glucose metrics in animal models by reducing gut inflammation, they are not a recommended treatment for humans due to side effects like weight gain. Focus on safer microbiota modulation through diet and probiotics instead.

Exercise-induced browning of subcutaneous white adipose tissue (ScAT) in rodents may serve as an adaptive mechanism to compensate for reduced insulation due to fat loss or to manage oxidative stress/redox state, rather than primarily for thermogenesis.

In animals, fat tissue changes during exercise might be a response to stress or inflammation rather than just burning calories. This doesn't change the advice: keep exercising for overall health, as the specific 'browning' mechanism is not proven to help humans lose weight.

An intensive weight loss intervention combining total diet replacements (TDR), behavioral support, and weight loss medications (WLM) as needed achieves and maintains ≥20% weight loss in adults with obesity class I or II, significantly outperforming usual care.

To achieve significant weight loss (≥20%), you need a structured, long-term (2-year) program that combines strict initial calorie restriction (via meal replacements), regular coaching, and physical activity. If you don't lose enough weight in the first month, the program adds medication support. This is more intensive than typical 'eat less, move more' advice, which usually results in minimal weight loss.

An intensive lifestyle intervention (ILI) combining caloric restriction, structured meal replacements, and progressive physical activity (goal 175 min/week) produces clinically significant weight loss (avg 8.6%) and improves cardiovascular risk factors (A1C, BP, lipids) in individuals with type 2 diabetes compared to diabetes support and education (DSE).

For someone with type 2 diabetes, losing weight is achievable even if you take insulin. The key is a structured approach: focus on reducing calories (especially fat), use portion-controlled meals or meal replacements, and gradually build up to 175 minutes of moderate exercise per week (like brisk walking). This approach not only helps you lose weight (averaging 8.6% in the study) but also improves your blood sugar, blood pressure, and cholesterol, potentially reducing your need for medication.

Once-weekly subcutaneous semaglutide 2.4 mg produces clinically significant, sustained weight loss (mean -10.2% at 208 weeks) in adults with preexisting cardiovascular disease and obesity/overweight without diabetes, compared to placebo.

If you have heart disease and are overweight or obese (even without diabetes), once-weekly semaglutide 2.4 mg can help you lose about 10% of your body weight over 4 years, which is significantly more than placebo. This benefit is seen across different sexes, races, and BMI categories, though those with lower starting BMI might stop the medication more often due to side effects or lack of motivation. The key is that it works sustainably for cardiovascular health.

A structured pregnancy intervention combining a high-dairy protein diet (25% energy) and a progressive walking program (up to 10,000 steps/day) improves the likelihood of achieving Institute of Medicine (IOM) gestational weight gain (GWG) targets compared to standard prenatal care.

To manage weight gain during pregnancy, combine a diet where 25% of your calories come from dairy proteins (milk, yogurt, cottage cheese) with a daily walking goal of 10,000 steps. Start with 25-minute walks 3-4 times a week, adding 2 minutes each week until you reach 40 minutes. This structured approach is more effective than standard advice alone.

Aerobic physical activity (30-60 minutes, moderate to vigorous intensity, most days of the week) improves cardiometabolic parameters, reduces visceral fat, and aids in weight maintenance, even without significant weight loss.

Aim for 30-60 minutes of moderate-to-vigorous aerobic exercise (like brisk walking, cycling, or swimming) on most days of the week. You do not need to lose weight on the scale to get benefits. This activity reduces dangerous visceral fat, improves blood pressure and blood sugar control, and helps maintain any weight loss you achieve.

Semaglutide (2.4 mg/week) induces significant weight loss (mean -10.09% body weight) and improves cardiometabolic markers (BMI, waist circumference, blood pressure, CRP, lipids) in obese or overweight non-diabetic adults, with efficacy increasing with dose.

For non-diabetic adults with obesity, once-weekly subcutaneous semaglutide (2.4 mg) is a highly effective treatment for weight loss, averaging a 10% reduction in body weight. It also improves blood pressure, inflammation (CRP), and lipid profiles. While gastrointestinal side effects like nausea are common, they are typically transient. The treatment is dose-dependent, with higher doses yielding greater weight loss.

Dietary protein supplementation significantly augments resistance training-induced gains in fat-free mass (FFM) and one-repetition-maximum (1RM) strength in healthy adults.

If you are doing resistance training, ensure you are consuming enough protein. Supplementing with protein powder can help you reach optimal levels (~1.6 g/kg/day) to maximize muscle and strength gains. You do not need to exceed this amount for further benefits.

Long-term use of FDA/Health Canada-approved obesity pharmacotherapies (semaglutide, tirzepatide, liraglutide, naltrexone-bupropion, orlistat) combined with health behavior changes produces clinically meaningful weight loss and prevents weight regain upon discontinuation.

If you have obesity (BMI ≥ 30, or ≥ 27 with health issues), talk to your doctor about FDA/Health Canada-approved weight loss medications like semaglutide or tirzepatide. These work best when combined with diet and exercise changes. Crucially, these are long-term treatments; stopping them usually leads to regaining the weight, so view them as a permanent tool for managing your health, not a quick fix.

Tirzepatide (5-15 mg weekly) produces superior weight loss compared to semaglutide and placebo in adults with obesity, with dose-dependent efficacy.

Tirzepatide is a weekly injection that can lead to significant weight loss (up to ~21% in trials). It works by targeting two hormones (GIP and GLP-1). Side effects like nausea are common but often temporary. It is approved for adults with obesity or overweight with health issues.

Medical Nutrition Therapy (MNT) provided by a registered dietitian is an effective, evidence-based component of diabetes treatment that improves glycemic control (A1C reduction of 0.3-2.0%) and cardiovascular risk factors, comparable to pharmacologic interventions.

Ask your doctor for a referral to a Registered Dietitian (RD) specializing in diabetes. You should expect 3-4 initial visits (45-90 mins each) within the first 6 months, plus annual check-ins. This is a covered benefit and is as effective as many medications for lowering blood sugar.

For overweight/obese adults with Type 2 Diabetes, intensive lifestyle interventions focusing on energy restriction and weight loss (6-8.5% body weight) improve glycemic control, blood pressure, and lipids, with the greatest benefits seen in those early in the disease process.

If you are overweight with Type 2 Diabetes, aim to lose 7-8% of your body weight through a calorie-controlled diet and exercise. This significantly improves blood sugar and heart health. Talk to your doctor about switching to weight-neutral medications if current ones are hindering your progress.

An intensive lifestyle intervention (ILI) targeting weight loss and physical activity significantly improves and maintains self-reported physical functioning in older adults with type 2 diabetes compared to standard education, effectively buffering the age-related decline in function.

For older adults with Type 2 Diabetes, committing to an intensive lifestyle program (diet + >175 mins/week walking) for the first year yields significant, lasting improvements in physical function. Even if weight is regained in subsequent years, the functional benefits (mobility, independence) established in the first year tend to persist, effectively 'buying back' years of functional youth compared to those receiving standard education.

Diabetes nutrition therapy, delivered individually or in groups, significantly improves glycemic control (A1C reduction of 0.3-2%) and metabolic parameters in both type 1 and type 2 diabetes patients.

Work with a registered dietitian to create a personalized eating plan. You can achieve significant health improvements (lower A1C, better blood pressure) through consistent dietary changes, whether you use detailed carbohydrate counting or simpler portion control. This therapy is effective for both type 1 and type 2 diabetes and should be part of your long-term management, even if you take medication.

A 12-week online intervention combining tailored protein intake counseling with progressive resistance training improves physical function, muscle strength, and health-related quality of life in older cancer survivors compared to general education and stretching.

If you are an older cancer survivor experiencing physical weakness, consider a program that combines specific dietary advice on protein intake with structured resistance exercises. This study protocol suggests that doing this online with professional guidance for 12 weeks may help improve your strength and quality of life, though results are not yet available.

Combining resistance training with progressive whey protein supplementation (up to 60g/day) initiated 3 weeks post-surgery counteracts disproportional fat-free mass loss in patients undergoing metabolic bariatric surgery.

If you have had bariatric surgery, standard care may not be enough to protect your muscle. This protocol suggests starting resistance training (both home and supervised) and gradually increasing whey protein intake to 60g per day, starting 3 weeks after surgery. This combination aims to preserve muscle mass, which is crucial for long-term health and metabolic function.