Browse the evidence

Consumption of edible fruits rich in bioactive compounds (polyphenols, vitamins, minerals) delays aging and reduces the risk of age-related chronic diseases by neutralizing reactive oxygen species (ROS) and reducing oxidative stress.

Eat a variety of colorful fruits daily. They contain natural antioxidants like polyphenols and vitamins that fight the cellular damage (oxidative stress) associated with aging and chronic disease. Focus on whole fruits rather than juices to maximize fiber and nutrient benefits.

Adjunctive therapies such as pramlintide, metformin, and GLP-1 receptor agonists can improve glycemic control and promote weight loss or weight neutrality in Type 1 Diabetes when added to insulin therapy.

If you have Type 1 Diabetes and are struggling with weight gain from insulin, ask your doctor about adjunctive therapies like pramlintide, metformin, or GLP-1 agonists. These medications may help you lose weight or maintain your weight while improving your blood sugar control. They are not a replacement for insulin but can be added to your regimen.

Obstructive sleep apnea (OSA) is strongly correlated with obesity, where upper airway fat deposits narrow the airway and decrease muscle activity, leading to hypoxic episodes that cause tissue hypoxia and subsequent atherosclerosis.

If you have obesity, getting screened for sleep apnea is critical because the resulting sleep fragmentation and hypoxia drive hormonal imbalances (like increased ghrelin and decreased leptin) that make weight loss harder and increase cardiovascular risk. Treating OSA (e.g., with CPAP) and improving sleep duration can help restore hormonal balance and support weight management efforts.

Short sleep duration (less than 7 hours) is associated with increased obesity risk, visceral obesity, and metabolic syndrome due to hormonal imbalances (increased ghrelin, decreased leptin) and increased caloric intake.

Aim for at least 7 hours of sleep per night. Short sleep disrupts hormones (ghrelin and leptin) that control hunger, making you more likely to overeat and gain weight. Improving sleep duration is a key strategy for weight management.

Social media dependence during lockdown increases sedentary time and causes emotional detachment, although it can be used as a tool for fitness motivation.

Limit social media scrolling to prevent emotional detachment and excessive sedentary time. Use social media actively for fitness motivation (e.g., following trainers, watching workout videos) rather than passively consuming negative news or entertainment.

Aerobic rehabilitation exercise (including yoga, tai chi, and qigong) reduces psychological stress and improves sleep quality in high-stress medical staff.

If you are a healthcare worker under high stress, incorporate simple, low-impact exercises like yoga, tai chi, or qigong into your routine. These activities are specifically noted to help reduce psychological stress and improve sleep quality, which are critical for recovery during high-pressure periods.

A digital music and movement intervention (danceSing Care) is feasible and improves anxiety, depression, and sleep satisfaction in older adults in care homes.

Consider digital music and movement interventions, such as danceSing Care, to improve anxiety, depression, and sleep satisfaction in older adults living in care homes.

Dietary non-digestible carbohydrates (fiber) serve as the primary carbon source for gut bacteria, and their fermentation into short-chain fatty acids (SCFAs) like butyrate regulates mucosal immune homeostasis by influencing T-cell differentiation and barrier integrity.

Prioritize non-digestible carbohydrates (fiber) from diverse plant sources as your primary fuel for gut bacteria. This fermentation process produces short-chain fatty acids like butyrate, which are critical for maintaining the intestinal barrier and regulating immune cells (Tregs and Th17). A lack of fiber leads to reduced bacterial diversity and increased susceptibility to inflammation.

Specific bacterial metabolites, particularly short-chain fatty acids (SCFAs) like butyrate and polysaccharides like PSA, directly modulate adaptive immunity by promoting Treg differentiation and suppressing pro-inflammatory Th17 responses.

To support immune balance, focus on consuming fiber-rich foods that feed your gut bacteria to produce SCFAs like butyrate. These metabolites help expand regulatory T cells (Tregs) which calm inflammation, while suppressing excessive inflammatory Th17 responses. This is a key mechanism for preventing autoimmune and inflammatory conditions.

Brown and beige adipose tissue (BAT) enhances systemic glucose tolerance and insulin sensitivity through increased energy expenditure, glucose uptake, and secretion of beneficial factors (batokines), although their role in human insulin resistance resolution is complex and context-dependent.

Activating brown fat through cold exposure or exercise can improve glucose tolerance and insulin sensitivity by burning energy and taking up glucose. However, the extent of this benefit in humans varies, and it is not a standalone cure for obesity-induced insulin resistance.

Social jetlag exceeding 2 hours is associated with a 2-fold increased risk of metabolic syndrome and diabetes/prediabetes in adults under 61 years of age.

If you are under 61, try to keep your sleep schedule consistent between weekdays and weekends. A difference of more than 2 hours in your midpoint sleep time (social jetlag) is linked to a significantly higher risk of metabolic syndrome and diabetes. You don't need perfect sleep, but minimizing the shift between work and weekend sleep times can help protect your metabolic health.

Acute sarcopenia in post-COVID-19 patients is driven by a multi-factorial mechanism involving hyper-inflammatory cytokine storms, mitochondrial dysfunction, and immobility, leading to rapid muscle mass and strength loss.

If you have recovered from severe COVID-19, expect some muscle loss due to the illness's inflammatory impact. Prioritize early nutritional support (high protein) and gradual, supervised physical rehabilitation to counteract this loss, rather than assuming it is permanent.

Muscle-strengthening activities are associated with a 17% lower incidence of diabetes, with risk decreasing markedly up to 60 minutes per week (L-shaped association).

To reduce your risk of developing diabetes, incorporate 30-60 minutes of muscle-strengthening exercises per week. The biggest benefit comes from getting up to 60 minutes, after which additional time yields diminishing returns for diabetes risk specifically.

Higher adherence to a Mediterranean-style diet (MeDi) in middle-aged adults is associated with slower longitudinal progression of Alzheimer's disease biomarkers, specifically reduced rates of cerebral glucose hypometabolism and beta-amyloid deposition, compared to lower adherence.

Adopting a Mediterranean-style diet in middle age may help slow the brain changes associated with Alzheimer's disease, such as reduced glucose metabolism and amyloid buildup. Focus on increasing fruits, vegetables, legumes, cereals, and fish, while reducing dairy, meat, and saturated fats. This dietary pattern may provide up to 3.5 years of protection against these specific brain biomarkers.

Encapsulating plant polyphenols in green bio-based nanocarriers (proteins, polysaccharides, or lipids) significantly improves their oral bioavailability and stability compared to unencapsulated forms.

If you take polyphenol supplements (like green tea extract or curcumin), look for those using advanced delivery systems (like nano-encapsulation). Standard powders may pass through your system without being absorbed effectively. The technology ensures the active ingredients actually enter your bloodstream.

Long-term consumption of foods rich in plant polyphenols is associated with the prevention or improvement of chronic diseases including diabetes, cardiovascular disease, cancer, and neurodegenerative disorders.

Incorporate a variety of polyphenol-rich plant foods (fruits, vegetables, tea, coffee) into your daily diet. This long-term dietary pattern supports heart health, blood sugar regulation, and cognitive function, acting as a preventive measure against chronic diseases.

University students' physical activity levels significantly decreased and sedentary behavior significantly increased during COVID-19 pandemic lockdowns, failing to offset the health risks of prolonged sitting.

If you are a student or young adult, expect your activity levels to drop and sitting time to rise during periods of confinement or routine disruption. To mitigate this, you must intentionally schedule movement, as the default environment will likely increase sedentary time by several hours daily.

During pandemic lockdowns, university students experienced a significant decrease in nutrient and caloric intake alongside a significant increase in alcohol consumption.

During disruptions, prioritize maintaining nutrient density even if calories drop. Be aware that alcohol consumption may increase as a coping mechanism, which can further displace essential nutrients.

High DHA fish oil supplementation slows the rate of cognitive decline in older adults, although its effects on depression disorders remain unclear.

For older adults concerned about memory loss, high DHA fish oil (where DHA is higher than EPA) may help slow cognitive decline. However, do not expect it to treat depression, as evidence for that is currently unclear.

Processing methods (blanching, freezing, drying) significantly alter the retention of bioactive compounds in carrots, with some methods increasing phenolic content while others decrease it.

How you prepare carrots matters. Blanching before freezing or juicing can sometimes increase the availability of phenolic compounds compared to just pasteurizing. However, making jam or marmalade from black carrots significantly reduces phenolic content and antioxidant capacity. For maximum benefit, consider blanching or light cooking rather than prolonged high-heat processing or making jams.

Higher diet quality has limited and inconsistent evidence for preventing declines in muscle strength and muscle mass in older adults.

While improving diet quality is crucial for physical mobility, its direct impact on preserving muscle mass and strength is less certain based on current evidence. Older adults should still prioritize diet quality for overall health, but should not rely on diet alone to prevent muscle loss; resistance training remains essential.

Periodic fasting (4-21 days) with 200-250 kcal/day intake is safe, well-tolerated, and improves cardiovascular risk factors and well-being in a large observational cohort.

If you are healthy and want to try a prolonged fast, start with a shorter duration (4-5 days) and ensure you have medical supervision. The Buchinger method involves consuming very few calories (200-250) from plant-based sources, drinking plenty of water, and engaging in light activity. Expect weight loss and improved blood markers, but be aware that hunger and mild symptoms are common in the first few days.

Combined diet and exercise interventions during pregnancy reduce the risk of developing gestational diabetes mellitus (GDM) compared to standard care alone, with moderate-quality evidence showing a possible reduction in risk (RR 0.85).

If you are pregnant, engaging in a combined program of healthy eating and physical activity, as guided by healthcare providers, may help lower your risk of developing gestational diabetes compared to standard care alone. While the statistical evidence is not definitive, the trend is favorable, and these lifestyle changes also support overall maternal and infant health.

Combined diet and exercise interventions during pregnancy may reduce the risk of caesarean section compared to standard care, with moderate-quality evidence.

Adopting a healthy diet and exercise routine during pregnancy might lower your chances of needing a caesarean section. While the evidence is not conclusive, the potential benefit exists alongside other health advantages for you and your baby.