Browse the evidence

In adults with type 2 diabetes, a low-carbohydrate, high-unsaturated fat diet provides superior glycemic stability and reduces diabetes medication requirements compared to a high-carbohydrate, low-fat diet, despite achieving equivalent weight loss.

If you have type 2 diabetes, switching to a low-carbohydrate diet (around 14% of calories from carbs) while keeping saturated fat low can help you stabilize your blood sugar and potentially reduce your need for diabetes medication, even if you lose the same amount of weight as you would on a standard low-fat diet. This approach focuses on reducing glycemic spikes rather than just calories.

A low-carbohydrate, high-unsaturated fat diet improves cardiovascular risk markers (specifically triglycerides and HDL-C) compared to a high-carbohydrate diet in type 2 diabetes patients, without adversely affecting renal function.

For people with type 2 diabetes, choosing a low-carbohydrate diet rich in unsaturated fats can improve blood lipid levels (lower triglycerides, better HDL) without harming kidney function. This makes it a safe and effective option for managing cardiovascular risk alongside blood sugar control.

Curcumin supplementation improves lipid profiles in Type 2 Diabetes patients by significantly reducing triglycerides, total cholesterol, LDL cholesterol, and VLDL cholesterol, while increasing HDL cholesterol.

For better heart health with diabetes, consider adding curcumin to your regimen. It helps lower bad fats (LDL, Triglycerides) and raise good fats (HDL). Use a bioavailable form for best results.

HMB (beta-hydroxy-beta-methylbutyrate) supplementation acts as a potent stimulator of protein synthesis and inhibitor of protein breakdown, helping to slow or reverse muscle loss in aging, illness, or starvation.

If you are recovering from illness or are older, ask your doctor about adding HMB to your nutritional supplements. It helps stop muscle breakdown and builds muscle when combined with protein.

Mediterranean Diet (MD) interventions significantly improve liver enzymes (ALT, AST), Fatty Liver Index, and liver stiffness in NAFLD patients, often with higher adherence than other diets.

Adopting a Mediterranean-style dietary pattern is an effective strategy for improving liver health in NAFLD. This involves increasing fiber, fruits, nuts, and healthy fats (like olive oil) while reducing refined carbohydrates and sodium. This approach not only improves liver enzymes and fat content but also tends to have higher patient adherence compared to other restrictive diets.

Ketogenic diets, characterized by high fat and low carbohydrate intake, improve metabolic health and reduce body weight by shifting metabolism towards fatty acid oxidation and ketone production.

Adopt a ketogenic diet by limiting carbohydrates to under 40 grams per day, while increasing fat intake and keeping protein moderate. This shift forces your body to burn fat for fuel, which can lead to weight loss and improved metabolic markers.

Whole grains improve dietary carbohydrate quality by increasing dietary fiber and reducing the glycemic index/load compared to refined grains, leading to better metabolic biomarkers.

Focus on whole grains that are low in glycemic index, such as oats, barley, and rye, rather than just any whole grain. Whole grain bread and pasta can still have a high glycemic index depending on how finely they are milled. Pairing whole grains with protein and fat can further blunt blood sugar spikes.

Adherence to a Mediterranean Diet (MD) pattern reduces the incidence of chronic diseases, including cardiovascular disease (CVD), type-2 diabetes, and certain cancers, primarily through the synergistic effects of its macronutrient composition (high MUFA/PUFA, low SFA) and bioactive phenolic compounds.

Adopt a Mediterranean-style eating pattern as your baseline. Prioritize extra virgin olive oil as your main fat source, consume fish regularly for omega-3s, and limit red meat and saturated fats. If you drink alcohol, limit it to moderate levels (1 drink/day for women, 2 for men) with meals. Combine this diet with at least 30 minutes of brisk walking daily to maximize metabolic and cardiovascular benefits.

VLCKD preserves lean body mass better than starvation or standard very low-calorie diets due to high biological-value protein intake and ketone-mediated protein sparing.

Ensure you are consuming the prescribed protein supplements (approx 1.2g/kg ideal body weight) during the diet. This helps protect your muscle mass while you lose fat, which is crucial for maintaining your metabolism.

Carbohydrate-Restricted Diets (LC), particularly very low-carbohydrate/ketogenic diets (<20-50g carbs/day), can reverse Type 2 Diabetes without intentional calorie restriction, with sustained remission rates up to 54% at two years in supported interventions.

Very Low-Carbohydrate Diets (<20-50g carbs/day) can reverse Type 2 Diabetes without needing to count calories, often leading to spontaneous weight loss. With adequate support (like continuous care), remission rates can reach 54% at two years, even in patients with longer-standing diabetes. This approach allows for significant medication reduction.

Higher protein intake (1.0–1.2 g/kg/day) is associated with greater appendicular lean mass in older adults compared to lower intake, and protein supplementation combined with resistance training improves fat-free mass.

Older adults should aim for 1.0–1.2 grams of protein per kilogram of body weight daily to support muscle mass. This is higher than the standard 0.8 g/kg recommendation. Combining this intake with resistance exercise yields the best results for increasing fat-free mass.

Adherence to Mediterranean or DASH dietary patterns significantly reduces the risk of developing Type 2 Diabetes Mellitus (T2DM) in the general population.

Adopt a Mediterranean or DASH-style eating pattern. This means prioritizing vegetables, fruits, whole grains, legumes, nuts, and olive oil, while limiting red meat and sugar-sweetened beverages. This approach has been shown to significantly lower the risk of developing Type 2 Diabetes.

High consumption of sugar-sweetened beverages (SSB) and artificial sugar-sweetened beverages significantly increases the risk of Type 2 Diabetes Mellitus.

Avoid both sugar-sweetened beverages and artificially sweetened beverages. Both are associated with a significantly increased risk of developing Type 2 Diabetes. Choose water, unsweetened tea, or coffee instead.

Low-Carbohydrate Diets (LCDs) produce greater short-term weight loss than Low-Fat Diets (LFDs), but this difference disappears after 12 months when both diets are isocaloric.

If you prefer eating less bread and pasta, a Low-Carbohydrate Diet will likely help you lose weight faster in the first 6 months than a low-fat diet. However, after a year, your results will likely be similar to someone eating a low-fat diet, provided you are eating the same number of calories. Choose the diet you can adhere to long-term.

A low-carbohydrate diet (26% of calories) significantly reduces serum triglycerides when combined with calorie restriction, but not when low-carbohydrate is applied without calorie restriction.

If you want to improve your blood triglyceride levels, a low-carbohydrate diet alone may not be enough. You need to combine low-carbohydrate intake (26% of calories) with calorie restriction (1200-1500 kcal/day) to see significant reductions in triglycerides. This combination was the only one to significantly lower triglycerides in this study.

Low-fat diets (LFD) result in greater reductions in Total Cholesterol (TC) and Low-Density Lipoprotein (LDL) cholesterol compared to low-carbohydrate diets (LCD) over a duration of 6 to 23 months.

If your primary health concern is high LDL or Total Cholesterol, a low-fat diet (less than 30% of calories from fat) is likely more effective than a low-carb diet for lowering these specific numbers over the next 6-23 months. Note that this benefit disappears after 24 months.

Current global agricultural production overproduces grains, fats, and sugars while underproducing fruits, vegetables, and protein, creating a nutritional imbalance that contributes to obesity and diabetes.

Stop assuming that having enough food means you are eating well. Current global diets are skewed heavily toward grains, fats, and sugars, which drives obesity and diabetes. To fix this, prioritize increasing the intake of fruits, vegetables, and plant-based proteins, and reduce reliance on energy-dense processed foods.

Low consumption of nuts/seeds and seafood omega-3 fats imposes the highest per capita cardiometabolic disease costs ($81 and $76 respectively), while high consumption of red meat and polyunsaturated fats imposes the lowest ($3 and $20 respectively).

Increase intake of nuts, seeds, and seafood omega-3s, as these changes offer the greatest potential to reduce cardiometabolic disease costs. Reduce processed meats and sodium, and increase polyunsaturated fats, though their individual impact is smaller.

Ultra-processed foods drive obesity primarily through their high glycemic load and disrupted cellular structure, which accelerates digestion and hormonal response, rather than just their energy density.

Minimize ultra-processed foods, especially those high in carbohydrates. Whole foods retain cellular structures that slow digestion and blunt glycemic spikes, reducing the hormonal drive for fat storage.

A 2-week ketogenic diet significantly upregulates adaptive immune pathways (T cell activation, oxidative phosphorylation) and alters microbiome amino acid metabolism, whereas a vegan diet upregulates innate immune pathways (antiviral responses, type I interferon) and erythrocyte differentiation.

Switching to a ketogenic diet for just two weeks shifts your immune system toward adaptive responses (T cells, oxidative phosphorylation), while a vegan diet shifts it toward innate/antiviral responses. This suggests diet can be used as a tool to modulate specific immune pathways, potentially relevant for managing inflammation or infection risk, though long-term disease outcomes require further study.

Time-Restricted Eating (TRE) with an 8-hour daily eating window improves nocturnal and postprandial glycaemic control in men with overweight/obesity, independent of weight loss.

Try Time-Restricted Eating (TRE) by limiting your daily eating to an 8-hour window (e.g., 10 AM to 6 PM). This can improve your blood sugar control without needing to count calories or cut out specific foods. It is a practical strategy for maintaining metabolic health during isolation.

Obesity increases the risk of triple-negative breast cancer (TNBC) in premenopausal women, primarily through abdominal (visceral) obesity rather than overall BMI.

If you are premenopausal, your waist size matters more for breast cancer risk than your overall weight. Abdominal fat is linked to a more aggressive type of breast cancer called triple-negative breast cancer. Focus on maintaining a healthy waist-to-hip ratio through diet and exercise, as this specific type of fat distribution drives risk in younger women.

High consumption of ultra-processed foods (UPF) displaces unprocessed and minimally processed foods, leading to a diet with significantly higher free sugars, saturated fats, and energy density, and lower protein, fiber, and potassium, thereby increasing the prevalence of nutrient inadequacy associated with non-communicable diseases (NCD).

To improve your diet quality and reduce NCD risk, prioritize unprocessed or minimally processed foods (fruits, vegetables, whole grains, lean meats) and limit ultra-processed foods (soft drinks, packaged snacks, processed meats, industrial breads). As UPF consumption rises, your intake of harmful sugars and fats increases while beneficial fiber and protein decrease, significantly raising your risk of nutrient inadequacy.

A high-fat, low-carbohydrate diet (high dietary fat intake) increases whole-body fat oxidation and reduces skeletal muscle mitochondrial respiration in trained humans, whereas low carbohydrate availability alone does not drive these adaptations.

If you are a trained endurance athlete, consuming a diet with >65% of calories from fat (while keeping carbs low at <20%) for about 5 days will significantly increase your body's ability to burn fat during exercise and reduce mitochondrial respiration rates. This adaptation is driven by the high fat intake itself, not just by restricting carbohydrates. Performance in time trials remains unchanged despite these metabolic shifts.