Browse the evidence

Adiponectin is an anti-inflammatory adipokine whose levels decrease in obesity, contrasting with most other adipokines that increase.

Maintaining healthy adiponectin levels, often associated with lower body fat and exercise, may help reduce inflammation and improve insulin sensitivity.

Insulin resistance is a primary antecedent metabolic abnormality in many patients with NAFLD and NASH, driving fat accumulation and potentially hepatocellular injury.

Managing insulin resistance through lifestyle changes is a key strategy for addressing the root cause of fatty liver disease. This involves weight management, exercise, and dietary adjustments to improve how the body handles insulin.

Biofortification of crops with essential mineral elements (iron, zinc, copper, calcium, magnesium, selenium, and iodine) through agronomic fertilization and genetic breeding is a viable strategy to remediate global mineral malnutrition.

To improve your mineral intake, focus on consuming crops that are biofortified. This can be achieved through agricultural practices that optimize mineral fertilizers or by choosing crop varieties bred to accumulate more iron, zinc, and other essential minerals. This approach addresses mineral malnutrition globally, especially in areas where soil quality is low.

Adiponectin, an adipocyte-secreted protein, has cardioprotective effects, and its levels are decreased in obesity, contributing to increased cardiovascular risk.

Low levels of adiponectin, a hormone produced by fat cells, are linked to higher heart disease risk. Since adiponectin levels drop in obesity, losing weight and improving metabolic health are the most effective ways to restore these protective levels and support heart health.

Obesity-induced inflammation involves a shift in adipose tissue macrophages from an anti-inflammatory M2 state to a pro-inflammatory M1 state, which secretes cytokines like TNF-α that block insulin signaling.

In obese individuals, fat tissue isn't just storage; it becomes an active immune organ. Fat cells attract immune cells that switch to a 'pro-inflammatory' mode (M1 macrophages), releasing chemicals like TNF-α that block insulin from working properly. Reducing this specific type of immune activation in fat tissue is key to improving metabolic health.

Inhibition of specific inflammatory signaling pathways (NF-κB and JNK) can disrupt the link between obesity and insulin resistance, suggesting these pathways are therapeutic targets.

Targeting the specific inflammatory signaling pathways (like JNK and NF-κB) that are overactive in obesity may help restore insulin sensitivity. While drugs targeting these are in development, current lifestyle interventions that reduce overall inflammation may indirectly modulate these pathways.

Obesity-associated nonalcoholic fatty liver disease (NAFLD) is driven by an imbalance where hepatic fatty acid input (uptake and de novo lipogenesis) exceeds output (oxidation and VLDL export), leading to intrahepatic triglyceride accumulation and subsequent insulin resistance.

If you have fatty liver, it is likely due to metabolic issues like insulin resistance and visceral fat, not just what you ate yesterday. Focus on improving metabolic health through weight loss and managing blood sugar, rather than just cutting fat.

Women with type 2 diabetes face a disproportionately higher risk of cardiovascular disease, myocardial infarction, and stroke mortality compared to men, as diabetes attenuates the natural cardioprotective effects of the female sex.

Women with type 2 diabetes should be monitored for cardiovascular health more aggressively than men, as the disease removes their natural hormonal protection against heart disease and stroke. This includes regular screening for cardiac risks even if traditional male-centric risk factors appear controlled.

Global consumption of vegetable oils has increased significantly (threefold in developing countries), contributing to higher energy availability and improved food security, but also altering macronutrient profiles.

Vegetable oil consumption has tripled in many developing nations, boosting calorie availability. While this helps food security, it also changes the diet's fat profile. Monitor total fat intake even when using plant-based oils.

Meat consumption, particularly poultry, has increased dramatically in developing countries (e.g., China, Brazil), while red meat consumption has stagnated or declined in industrial nations.

In developing economies, meat consumption is rising fast, especially poultry. In industrial nations, red meat intake is falling, possibly due to health scares and changing preferences. Prioritize poultry if increasing animal protein intake.

Current trends in the U.S. population project that by 2030, nearly 1 in 2 adults will have obesity (BMI ≥30) and nearly 1 in 4 will have severe obesity (BMI ≥35), with severe obesity becoming the most common BMI category among women, non-Hispanic black adults, and low-income adults.

This paper does not offer an individual intervention but highlights a massive public health trend. For an individual, the key takeaway is that the environment is becoming increasingly obesogenic, particularly for low-income and minority groups. Prevention efforts at the community and policy level are critical to counteracting these projected trends.

Pathological adipose tissue expansion driven by adipocyte hypertrophy leads to local hypoxia, which triggers a fibrotic response and chronic inflammation, ultimately resulting in systemic insulin resistance.

Not all fat gain leads to metabolic disease. The key is how your body handles the expansion. If your fat cells grow too large (hypertrophy) without creating new blood vessels, they become hypoxic and inflamed, causing insulin resistance. Encouraging 'healthy' expansion (hyperplasia/new cell creation) through gradual weight management may help preserve metabolic health, whereas rapid, massive fat cell enlargement is the primary driver of pathology.

Macrophage infiltration into adipose tissue is a critical mediator of obesity-induced insulin resistance, and their removal can restore insulin sensitivity.

Chronic inflammation in fat tissue, driven by immune cells called macrophages, is a major cause of insulin resistance. Reducing this inflammation, potentially by shifting macrophages from a pro-inflammatory (M1) to an anti-inflammatory (M2) state, could improve metabolic health.

Obesity-induced adipose tissue dysfunction, characterized by hypertrophy and macrophage infiltration, drives systemic insulin resistance and metabolic disease through the dysregulated secretion of pro-inflammatory adipokines (e.g., TNF-α, IL-6, MCP-1) and elevated free fatty acids, rather than fat mass alone.

Focus on improving metabolic health through actions that reduce adipose tissue inflammation, not just weight loss. Strategies that improve adipose tissue function (like exercise which can alter macrophage polarization) may be more effective for insulin sensitivity than caloric restriction alone, especially if you have 'dysfunctional' obesity.

Antioxidant vitamin supplementation is not recommended for primary prevention of cardiovascular disease due to lack of safety and efficacy evidence.

Do not rely on antioxidant vitamin supplements (like Vitamin C, E, or beta-carotene) to prevent heart disease. Current evidence does not support their safety or effectiveness for this purpose.

For a given waist circumference, a higher BMI is associated with lower mortality risk, likely due to greater protective subcutaneous fat storage in the lower body.

If you have a large waist, having a higher BMI might be less risky than having a low BMI with the same large waist. This is because lower-body fat may protect your organs from harmful visceral fat.

High baseline insulin and/or glucose levels predict favorable treatment effects from bariatric surgery, whereas high baseline BMI does not.

Patients with high insulin or glucose levels, even if their BMI is not extremely high, may benefit significantly from bariatric surgery. This suggests that current BMI-based selection criteria might be too restrictive and that metabolic health should be a key factor in deciding who gets surgery.

Adult humans possess active brown adipose tissue (BAT) capable of thermogenesis, primarily located in supraclavicular and neck regions, which is acutely activated by cold exposure via sympathetic nervous system stimulation.

Adults likely have functional brown fat in their neck and collarbone area. It activates when you are cold, burning energy and helping clear glucose from your blood. You don't need to do anything special to have it, but you need to be cold enough for it to turn on. This challenges the old idea that adults don't have this fat.

There is probable evidence that increasing vegetable and fruit consumption does not directly influence the risk of type 2 diabetes mellitus, independent of body weight.

While vegetables and fruit are essential for heart health, they do not directly prevent diabetes. Focus on maintaining a healthy weight and overall diet quality to manage your diabetes risk.

Activation of the nuclear receptor FXR by bile acids or synthetic agonists lowers plasma triglycerides and improves hyperglycemia in diabetic models.

While you cannot directly 'dose' bile acids safely without medical supervision, the paper suggests that modulating bile acid metabolism (e.g., via FXR agonists) is a promising pharmacological strategy for treating metabolic syndrome and type 2 diabetes. For now, maintaining a healthy gut microbiome supports normal bile acid cycling, which is linked to metabolic health.

Bile acids regulate energy expenditure through a pathway independent of FXR, mediated by the G-protein coupled receptor TGR5.

TGR5 activation by bile acids contributes to energy expenditure. This highlights the importance of gut health and bile acid composition for metabolic rate, independent of just fat digestion.

Greenspace exposure is associated with improved pregnancy outcomes, specifically a reduced risk of preterm birth and small size for gestational age.

For pregnant women, living in or frequently visiting areas with higher greenness is associated with a lower risk of preterm birth and having a baby that is small for gestational age. This suggests that environmental factors play a role in pregnancy health.

Systematic undertreatment of hypertension, hypercholesterolemia, and diabetes in patients with atherothrombosis leads to elevated cardiovascular risk profiles globally, regardless of geographic region.

If you have heart disease or high risk, simply being 'on medication' is not enough. You must verify that your blood pressure, cholesterol, and blood sugar are actually within target ranges. If they are not, your treatment is likely insufficient, regardless of how many pills you take. Seek a review of your specific numbers against guideline targets.

In patients with nonalcoholic steatohepatitis (NASH), older age, obesity, and diabetes mellitus are independent predictors of severe liver fibrosis (bridging fibrosis or cirrhosis).

If you have NASH, your risk of severe liver scarring is highest if you are older, obese, or have diabetes. Focus on managing blood sugar and achieving a healthy weight, as these factors drive the scarring process more than the amount of fat in the liver itself. Regular monitoring via biopsy or advanced testing is recommended for this high-risk group.