Browse the evidence

Prolonged endoplasmic reticulum stress (ERS) activates the unfolded protein response (UPR), which mediates chronic low-grade inflammation, insulin resistance, and cardiac dysfunction in obesity.

This research highlights that obesity triggers cellular stress (ERS) in the heart, leading to inflammation and insulin resistance. While this paper does not prescribe a specific diet, it underscores the importance of reducing metabolic stressors (like excess calories and free fatty acids) to prevent this cellular damage. Focus on sustainable weight management and metabolic health to reduce the burden on your cardiovascular system.

There is insufficient evidence to determine the benefit of vitamin D, calcium, or combined supplementation for preventing fractures in community-dwelling men and premenopausal women.

For men and premenopausal women, current research does not provide enough information to say whether vitamin D and calcium supplements prevent fractures. Because the evidence is insufficient and there are known risks (like kidney stones), these supplements are not recommended for primary fracture prevention in these groups.

Obese individuals with type 2 diabetes exhibit a distinct gut microbiota signature characterized by increased relative abundance of Firmicutes and decreased abundance of Verrucomicrobia, Bacteroidetes, and Proteobacteria compared to healthy controls.

This research suggests that the specific gut bacteria in obese diabetic patients differ from healthy people, potentially contributing to insulin resistance. While this is an observational snapshot of a specific population, it implies that dietary changes (reducing high-carb/fat intake) and avoiding unnecessary antibiotics might help restore a healthier microbial balance, though this specific study does not test interventions.

The depletion of Verrucomicrobia in obese-T2DM patients is associated with a loss of anti-inflammatory state and improved insulin sensitivity, potentially allowing the growth of pro-inflammatory Proteobacteria.

The study suggests that losing certain beneficial bacteria (like Verrucomicrobia) might contribute to insulin resistance. This highlights the importance of gut health in diabetes management, though it does not prescribe a specific probiotic or treatment.

Increased abundance of gram-negative bacteria (Dialister and Allisonella) in obese-T2DM patients is associated with elevated lipopolysaccharide (LPS) levels, which mediates inflammatory response and contributes to insulin resistance.

This finding links specific gut bacteria to inflammation and insulin resistance via LPS. It suggests that maintaining gut barrier integrity and avoiding unnecessary antibiotics may be important for metabolic health, although no specific intervention is tested here.

GIP receptor antagonists can promote weight loss in non-human primates and rodents, challenging the view that GIP promotes obesity.

Blocking GIP receptors (antagonism) has been shown to reduce weight gain in animal models, suggesting that endogenous GIP may play a role in promoting obesity. This supports the development of GIP antagonists for weight management.

The COVID-19 pandemic led to decreased food intake, skipping warm meals, and weight loss in a subset of older adults, predisposing them to undernutrition.

If you are an older adult, be aware that the pandemic's stress and isolation may have led you to eat less, skip meals, or lose weight. This is a common reaction, especially for those who are older, live alone, or have functional limitations. To manage this, try to eat smaller, more frequent meals and focus on nutrient-dense foods.

Intermittent fasting preserves pancreatic beta-cell mass and improves glucose tolerance in obesity-induced diabetes by stimulating the autophagy-lysosome pathway.

Intermittent fasting may help preserve insulin-producing cells in obesity, but only if your cells can properly recycle waste (autophagy). If you have underlying cellular defects, fasting might stress your pancreas instead of helping it.

Intermittent fasting stimulates beta-cell regeneration markers (NEUROG3) in obesity-induced diabetes, but this effect is dependent on an intact autophagy-lysosome pathway.

Fasting may trigger regeneration signals in the pancreas during obesity, but this process is blocked if your cells cannot perform autophagy.

Single oral administration of Nicotinamide Mononucleotide (NMN) up to 500 mg is safe and well-tolerated in healthy men, causing no significant adverse clinical symptoms or changes in vital signs.

If you are a healthy man between 40 and 60, taking a single dose of NMN (up to 500mg) appears safe in the short term, with no observed negative effects on vital signs, liver enzymes, or general well-being. This does not prove long-term benefits, but it suggests the supplement is well-tolerated at these doses.

Oral administration of NMN (100-500 mg) leads to a dose-dependent increase in plasma levels of its metabolites, specifically N-methyl-2-pyridone-5-carboxamide (2Py) and N-methyl-4-pyridone-5-carboxamide (4Py), indicating successful metabolic conversion.

Taking NMN orally results in measurable levels of its metabolites in your blood, suggesting your body absorbs and processes it. Higher doses (500mg) produce more of these metabolites than lower doses (100mg).

There is no conclusive evidence linking non-nutritive sweetener consumption to chronic kidney disease in high-risk patients, although some individual studies show positive associations.

For individuals at high risk of chronic kidney disease, current systematic evidence does not show that artificially sweetened soda increases the risk. However, because some individual studies show positive associations, those with existing kidney conditions should consult their healthcare provider for personalized advice.

Insulin-like Growth Factor-I (IGF-I) administration ameliorates liver fibrosis and NASH by inducing cellular senescence in hepatic stellate cells (HSCs), thereby inactivating them and limiting fibrosis progression.

IGF-I shows promise in animal studies for reversing liver scarring (fibrosis) by putting the scar-forming cells into a state of 'senescence' where they stop working. While not yet a standard human treatment, it represents a potential future therapy for advanced liver disease.

Administration of specific probiotic strains (primarily Lactobacillus and Bifidobacterium) reduces body weight and adipose tissue mass in diet-induced obese animal models through mechanisms involving SCFA production, gut barrier integrity, and immune modulation.

Specific probiotic strains (like Lactobacillus and Bifidobacterium) show promise in reducing fat mass in animal studies, but human results are inconsistent. Do not rely on probiotics as a primary weight loss strategy. They may offer modest metabolic support when combined with a healthy diet, but they are not a standalone solution for obesity.

Probiotics can improve gut barrier integrity and reduce metabolic endotoxemia (LPS translocation) in obese models, thereby lowering systemic inflammation.

A healthy gut lining helps prevent inflammation, which is linked to obesity. Probiotics may help strengthen this barrier, but the most effective way to support gut health is through a diet rich in fiber and fermented foods.

Traditional Cognitive Behavioral Therapy (CBT) is the first-line psychological treatment for obesity but does not necessarily produce successful weight loss, primarily functioning to reduce binge eating episodes and psychopathology rather than directly reducing body weight.

If you are using CBT for obesity, manage your expectations: the primary goal is to fix the psychological relationship with food (like binge eating) and improve mood, not necessarily to drop pounds quickly. Weight loss is a secondary outcome that may not happen for everyone, and success is measured by behavioral changes and reduced psychopathology first.

Capsaicin, the active compound in hot chili peppers, enhances the intestinal absorption of micronutrients like calcium, iron, and zinc by increasing intestinal permeability and absorptive surface area.

Consuming spicy foods may help your body absorb more minerals from your food. This is due to capsaicin improving how your intestines work. However, this effect is subtle and should not replace eating nutrient-dense foods.

Dietary supplementation with Allium cepa (onion) extracts, particularly those rich in quercetin and organosulfur compounds, inhibits adipogenesis and promotes browning of white adipose tissue, leading to reduced fat accumulation and improved lipid profiles in preclinical models.

Incorporating onion peel extracts or quercetin-rich onion preparations into your diet may support metabolic health by inhibiting the formation of new fat cells and promoting the browning of white fat. While not a magic bullet for weight loss, it serves as a supportive dietary strategy for managing lipid profiles and insulin sensitivity, particularly when combined with a balanced diet.

Calorie restriction (15-30% reduction) inhibits tumor growth and enhances antitumor immunity by reducing IGF-1 signaling, lowering glucose levels, and remodeling the tumor microenvironment to increase CD8+ T cells while decreasing immunosuppressive MDSCs and Tregs.

If you have cancer, discuss with your oncologist whether a supervised calorie restriction of 15-30% might be appropriate as an adjunct to standard therapy. It is not a cure, but it may help improve the effectiveness of your treatment by altering your body's metabolism and immune response.

Ketogenic diets and fasting-mimicking diets may enhance the efficacy of cancer treatments by altering tumor metabolism and immune response, though mechanisms remain largely unexplored.

Ask your oncologist if a ketogenic or fasting-mimicking diet could be a safe adjunct to your cancer treatment. These diets may help your body respond better to therapy, but they are not cures and require careful monitoring.

Sotagliflozin is a dual SGLT1/SGLT2 inhibitor that reduces postprandial glycemia by blocking intestinal glucose absorption and renal glucose reabsorption.

Sotagliflozin is a newer diabetes medication that works in two places: your intestines and your kidneys. It helps lower blood sugar spikes after meals by preventing sugar absorption in the gut and removing sugar through urine. It is still being studied for long-term safety.

There is insufficient evidence to evaluate the effects of sedentary behavior interventions on inflammation or vascular function biomarkers.

Current research does not provide enough data to determine if reducing sitting time affects inflammation (like CRP) or vascular health (like arterial stiffness). More high-quality studies measuring these specific outcomes are needed.

Short-term manipulation of energy availability (≤5 days) triggers acute endocrine and metabolic dysregulations, but the long-term physiological effects of chronic LEA remain causally unproven due to a lack of long-duration prospective studies.

While short-term low energy availability clearly disrupts hormones, we lack long-term prospective data to definitively predict the chronic health outcomes of sustained LEA in humans.

Supplementation with Vitamin B complex (B6, B9, B12) reduces homocysteine levels, but this reduction does not necessarily translate to slower cognitive impairment or reduced dementia incidence in the general population.

Ensure adequate intake of Vitamin B6, B9 (Folic Acid), and B12, especially if you have high homocysteine levels, as deficiency is linked to vascular risks. However, do not rely on B-vitamin supplements alone to prevent dementia, as clinical trials show they do not consistently improve cognitive function or reduce dementia incidence in the general population.