Browse the evidence

SGLT2 inhibitors reduce cardiovascular risk through mechanisms including osmotic diuresis, blood pressure reduction, weight loss, and reduced arterial stiffness, independent of glucose lowering.

SGLT2 inhibitors like empagliflozin help the heart by lowering blood pressure, reducing body weight (specifically fat mass), and making arteries more flexible. These physical changes reduce the workload on the heart and lower the risk of heart failure and cardiovascular death, offering benefits beyond just controlling blood sugar.

Standard, unvalidated diet quality (HEI-C) and fitness measures fail to correlate with clinical metabolic syndrome reversal, whereas factor-analytically derived latent models of these constructs demonstrate excellent measurement equivalence and validity.

If you are tracking diet or fitness progress to manage metabolic health, standard off-the-shelf scores (like basic HEI-C) may not accurately reflect your clinical improvements. To truly link your lifestyle changes to health outcomes, use validated, multi-component assessments that account for measurement error, rather than relying on single, unvalidated metrics.

Patients with higher comorbidity burdens (cardiovascular risk, respiratory, pain, mental health) and higher BMI are significantly more likely to receive high-intensity interventions (surgery/procedures) rather than lifestyle intervention, while anti-obesity medications (AOMs) are underutilized relative to guidelines.

If you have obesity and comorbidities like diabetes or heart disease, you are more likely to get surgery or procedures than medication or lifestyle programs, even if guidelines suggest medication first. This is because providers often wait for severe BMI or complications before escalating care. You should discuss all options, including AOMs, with your provider rather than waiting for surgery eligibility.

Thyroid hormone substitution therapy in hypothyroid patients produces only modest weight loss (3-5 kg) and does not resolve obesity; therefore, obesity treatment should not be delayed until thyroid levels are normalized.

Do not wait for your thyroid levels to normalize before starting weight loss efforts. Thyroid medication will only help you lose a small amount of weight (3-5 kg). Focus on behavioral changes (diet and exercise) and other obesity treatments immediately, as these are the primary drivers of weight loss.

Statins are safe and beneficial for patients with chronic liver disease (excluding decompensated cirrhosis), improving overall survival and reducing hepatic decompensation risk, contradicting the historical dogma that they are contraindicated.

If you have fatty liver disease and high cholesterol or heart disease risk, take your statin as prescribed. It is safe for your liver (unless you have advanced, decompensated cirrhosis) and helps you live longer.

Central (aortic) blood pressure is a stronger predictor of future cardiovascular risk and target organ damage than peripheral (brachial) blood pressure because vital organs are more directly exposed to central pressure.

If you have obesity or hypertension, ask your doctor about central blood pressure assessment. Standard arm-cuff readings may underestimate the stress on your heart and kidneys. Central pressure monitoring offers a more accurate prediction of long-term cardiovascular risk and organ damage.

Higher total protein intake (up to ~116g/day) is not significantly associated with reduced risk of cardiovascular disease (CVD), coronary heart disease (CHD), or stroke in middle-aged adults.

If you are a middle-aged adult concerned about heart disease, simply eating more protein than you currently do is unlikely to lower your risk of heart attack or stroke. Focus on overall dietary patterns and established risk factors rather than just maximizing protein grams.

Higher diversity of protein sources (specifically 'count' of sources) is weakly associated with a marginally higher risk of CVD, while 'dissimilarity' of sources shows no association.

Don't assume that eating many different types of protein (e.g., chicken, beef, fish, beans, tofu) will protect your heart. This study suggests that having a high count of protein sources might be weakly linked to higher risk, possibly due to what those sources are (e.g., processed meats).

In patients with Obstructive Sleep Apnea (OSA) treated with CPAP, a history of prior vascular events, hypertension, older age at treatment initiation, and higher comorbidity burden are significant independent risk factors for subsequent vascular events, whereas obesity (BMI) is not.

If you have OSA and use CPAP, adherence is crucial, but it does not guarantee immunity from heart issues. Your risk of a vascular event is significantly higher if you have high blood pressure, a history of heart problems, or other chronic conditions. Focus on managing your blood pressure and comorbidities alongside your CPAP therapy, and seek early diagnosis and treatment to mitigate age-related risks.

Nutrition intervention trials for complex chronic disease exhibit extensive heterogeneity in outcome reporting, with only 8% of outcomes reported with relative consistency and a 25% agreement rate with established Core Outcome Sets (COS).

For researchers and clinicians: Do not assume that 'nutrition intervention' studies are directly comparable just because they treat similar diseases. Look for whether they use Core Outcome Sets (COS). If they don't, the results may be difficult to apply to other patients or combine with other studies. Advocate for the use of standardized outcome sets in your own work to ensure your findings contribute to reliable evidence.

Modern commercial Paleolithic diet variants (low-carb/high-fat) and extreme Carnivore diets contradict anthropological evidence of ancestral carbohydrate intake (35-72% of energy) and may increase cardiovascular risk by promoting high saturated fat intake and dyslipidemia.

If you are following a commercial Paleo or Carnivore diet, be aware that your macronutrient profile (very low carb, high saturated fat) differs significantly from what anthropological evidence suggests ancestral humans ate. Current scientific consensus links high saturated fat intake to elevated LDL and cardiovascular risk. While these diets may offer short-term benefits (possibly via elimination of processed foods or FODMAPs), long-term adherence to high saturated fat levels may increase cardiovascular risk. Consider aligning your diet with evidence-based guidelines that limit saturated fat, rather than relying on evolutionary arguments alone.

Consuming alcohol at a frequency of three or more days per week is inversely associated with the risk of myocardial infarction in men, regardless of the specific type of beverage consumed.

For men who already consume alcohol, drinking on at least three to four days per week is associated with a lower risk of heart attacks compared to drinking less than once a week. The specific type of alcohol (wine, beer, liquor) or whether it is consumed with meals does not significantly change this benefit. The key factor is the frequency of consumption, not the total volume or beverage type.

Increasing alcohol consumption by a moderate amount (e.g., 12.5g/day) over time is associated with a decreased risk of myocardial infarction in men who were previously free of cardiovascular disease.

For men who already drink alcohol, increasing their daily intake by a moderate amount (e.g., 12.5 grams) over several years is associated with a lower risk of heart attacks. This suggests that light-to-moderate drinkers who increase their intake slightly may see cardiovascular benefits, although this does not apply to those who do not currently drink.

The COVID-19 pandemic and associated mitigation strategies (e.g., stay-at-home orders, physical distancing) caused a significant increase in the prevalence of depressive symptoms and loneliness among older adults with type 2 diabetes, while insomnia prevalence remained stable.

If you are an older adult with diabetes, be aware that pandemic-related isolation can significantly worsen mood and loneliness. Monitor your mental health closely, as the risk is higher if you had prior symptoms. Prioritize safe social engagement strategies to mitigate these effects.

Baseline levels of physical activity and fitness do not significantly predict the rate of telomere length shortening over a 5-year period in older adults, although cross-sectional associations exist.

Don't just rely on your current fitness level to protect your cells. This study suggests that *changes* in your activity and fitness over time are what matter for telomere health. If you are sedentary, increasing your leisure-time activity and functional fitness may help slow cellular aging, even if you were previously active.

Women with type 2 diabetes face a disproportionately higher relative risk of major cardiovascular complications compared to men with type 2 diabetes, despite having lower absolute incidence rates in the general population.

If you are a woman with type 2 diabetes, your risk of heart disease and stroke is significantly higher relative to your non-diabetic peers than it is for men with diabetes. This means you cannot rely on general 'average' risk calculators. You need more aggressive management of blood pressure, lipids, and blood sugar than men might require for similar risk profiles, and you should advocate for this heightened level of care with your healthcare provider.

South Asians have a 2-4 fold higher prevalence of type 2 diabetes compared to white populations but do not exhibit a correspondingly higher risk of cardiovascular complications, suggesting a protective mechanism or different pathophysiology.

If you are of South Asian descent with type 2 diabetes, you are at a much higher risk of developing the disease itself than white individuals, often at a younger age and lower BMI. However, your risk of heart disease and stroke may not be as high as the diabetes prevalence would suggest. This paradox means you should focus on early screening and management of diabetes to prevent it from progressing, as your body may handle the cardiovascular stress of diabetes differently than other groups.

Persistent psychological stress is causally associated with an increased risk of fatal or non-fatal coronary heart disease (CHD) events in a dose-dependent manner.

Chronic, unmanaged stress is a direct physical risk factor for heart attacks, not just a feeling. The risk increases with the frequency and persistence of stress. Managing stress is as critical for heart health as diet and exercise because it reduces the biological 'allostatic load' that damages blood vessels and heart tissue over time.

High waist-to-hip ratio (WHR) is a significant predictor of all-cause mortality, whereas BMI is not, and psychological stress does not directly predict all-cause mortality when WHR is considered.

Do not rely on BMI to assess your long-term health risk. Instead, measure your waist and hip circumferences. A high waist-to-hip ratio is a much stronger predictor of early death than BMI. Focus on reducing abdominal fat through lifestyle changes, as this specific body shape is linked to higher mortality.

The phenotype of 'metabolically healthy obesity' (MHO) is a transient state that progresses over time to an unhealthy phenotype, particularly in children and adolescents, and is associated with increased cardiovascular risk compared to metabolically healthy normal weight individuals.

Even if your blood pressure and cholesterol are normal, having obesity is not 'healthy' in the long term. It is a temporary state that often leads to metabolic problems like diabetes and heart disease, especially as you age. You should still focus on maintaining a healthy weight and physical fitness to prevent this progression.

Obesity is a stigmatized condition where the desire for cosmetic weight loss often exceeds the desire for health benefits, leading to a mismatch between patient expectations and clinical outcomes, which negatively affects treatment adherence and drug regulation.

Understand that your desire to look different is normal, but clinical weight loss is slow and modest. Health benefits happen at lower weight loss levels than cosmetic changes. Focus on how you feel and your health markers (blood pressure, blood sugar) rather than just the scale number to stay motivated.

Very Low-Calorie Diets (VLCDs, <800 kcal/day) are not recommended for general use due to significant adverse events and require medical supervision.

Avoid Very Low-Calorie Diets (under 800 calories) unless prescribed and monitored by a doctor. The risks, including gallstones and electrolyte imbalances, outweigh the benefits for most people. Stick to moderate calorie restriction (800-1500 kcal) for safer, sustainable weight loss.

Extending traditional behavioral weight loss therapy from 20 weeks to 52 weeks does not significantly increase total weight loss, as the majority of loss occurs in the first 20-26 weeks and plateaus thereafter.

Don't expect your weight loss to continue at the same rate if you stay in a program for a year. Most of the loss happens in the first 6 months. If you aren't losing weight after 6 months, extending the program duration is unlikely to help significantly.

Aerobic exercise training in the absence of weight loss does not significantly improve fasting glucose, fasting insulin, or lipoprotein concentrations (HDL-C, LDL-C) compared to a control group, although it does increase VO2max.

If you start exercising but do not lose weight, your cardiovascular fitness will likely improve, but your blood sugar, insulin, and cholesterol levels may not change significantly. To fix metabolic health markers, you must also lose weight through diet.