Browse the evidence

Other protein supplements (soy, casein, pea, rice, etc.) do not show statistically significant differences in muscle strength or fat-free mass gains compared to placebo in healthy adults undergoing resistance training.

If you are using other protein supplements like soy, casein, or pea protein, they may not provide significant additional benefits for muscle strength or mass gains compared to a placebo. Focus on collagen or whey if you want to maximize your results.

GLP-1 receptor agonist pharmacotherapy in older adults causes significant loss of lean skeletal muscle mass (approx. 26-40% of total weight lost), which independently predicts adverse outcomes including mortality, functional decline, and frailty.

If you are an older adult using GLP-1 medications, do not focus solely on the number on the scale. The medication causes you to lose muscle along with fat, which can lead to frailty and higher mortality. You must actively counteract this by combining your medication with resistance exercise and adequate protein intake to preserve your muscle mass.

Rapid and significant weight loss induced by Tirzepatide leads to aesthetic changes, including facial volume loss ('Ozempic face'), skin laxity, and altered collagen structure, which are secondary to fat loss rather than direct drug toxicity.

Significant weight loss can cause your face to look older or saggy due to loss of facial fat. This is a side effect of the weight loss, not the drug itself. Eating enough protein and vitamins (like D and B12) during treatment may help maintain skin health.

In Korean adults, adherence to a low-carbohydrate diet (LCD) is associated with higher odds of metabolic syndrome, primarily because LCDs in this population often substitute refined carbohydrates with processed meats and animal fats rather than healthy unsaturated fats.

If you are Korean or have an East Asian metabolic profile, simply reducing carbohydrates may not lower your metabolic syndrome risk and could potentially increase it if you replace rice with processed meats or unhealthy fats. Focus on the quality of your diet—choosing whole grains, unsaturated fats, and lean proteins—rather than just cutting carbs.

There is no significant difference between various macronutrient dietary groups (VLCLP, MCLP, MCHP, etc.) in their ability to lower blood glucose, blood pressure, or total cholesterol compared to a moderate fat-low protein (MFLP) control diet.

Do not expect that switching to a specific macronutrient ratio (like Keto or Low Fat) will significantly lower your blood pressure, blood glucose, or total cholesterol compared to a standard moderate-fat diet. The evidence for these specific outcomes is weak and shows no clear winner among the diets studied.

Personalized nutrition significantly reduces carbohydrate intake compared to control diets, with a median mean difference of -10.8% of energy.

Personalized nutrition interventions in this review led to a significant reduction in carbohydrate intake (averaging 10.8% less energy from carbs) compared to standard diets. This suggests that personalized approaches may naturally guide patients toward lower-carb profiles that benefit their specific metabolic health.

Natural compounds, specifically oligomeric procyanidins from apple polyphenol extract and tetrahydrofuran from nutmeg, inhibit pancreatic lipase activity in vitro and in animal models, potentially offering safer alternatives to synthetic inhibitors.

Some natural extracts, like those from apples (procyanidins) and nutmeg, show promise in blocking fat-digesting enzymes in lab tests. However, they are not yet proven to be effective or safe for weight loss in humans compared to established treatments. Do not rely on them as a primary weight loss strategy without medical guidance.

Timing of protein ingestion (before vs. after resistance training) does not significantly affect total body lean mass gains.

You do not need to rush to drink protein immediately after your workout. As long as you consume your protein within a few hours before or after training, your muscle growth will be the same. Focus on getting enough total protein throughout the day rather than stressing about the exact timing.

Timing of protein ingestion does not significantly affect upper body (chest press) strength gains.

For upper body exercises like chest press, it does not matter if you drink your protein before or after your workout. Your strength gains will be the same. Focus on getting enough total protein throughout the day.

Higher carbohydrate intake does not independently enhance resistance training-induced muscle hypertrophy when protein and energy intake are controlled.

You do not need to eat high carbohydrates to maximize muscle growth. As long as you are consuming enough protein and total calories (energy surplus for growth), you can choose your carbohydrate intake based on personal preference, performance needs, or digestive comfort without negatively impacting your muscle gains. Low-carb diets are not inherently inferior for hypertrophy if energy and protein are adequate.

The Lipid Hypothesis, which demonized saturated fats and promoted high-carbohydrate diets, is flawed and has contributed to the global pandemic of chronic metabolic diseases.

Re-evaluate your intake of saturated fats. The paper suggests that saturated fats are essential for health and that the high carbohydrate intake promoted by the Lipid Hypothesis may be contributing to metabolic diseases. Consider reducing carbohydrates and incorporating healthy saturated fats.

Consuming 30g of protein from lean beef immediately following resistance training may augment chronic adaptations in strength and lean tissue accretion compared to a placebo, though its efficacy relative to whey protein remains to be determined by this ongoing trial.

This study is currently a protocol and has not yet published results. However, it suggests that consuming ~30g of protein from lean beef immediately after resistance training is a viable strategy to potentially enhance strength and muscle gains. If you prefer whole foods over supplements, lean beef is a high-quality source of protein and micronutrients. Ensure you are doing consistent resistance training (3x/week) and consuming this protein within an hour post-workout.

Adherence to a nutrient-dense carnivore diet (high fat, moderate protein, negligible carbohydrates) can induce remission of type 2 diabetes and hypertension in patients with long-standing disease history.

This case suggests that eliminating carbohydrates and eating a diet consisting only of animal products (meat, eggs, fats) may help reverse type 2 diabetes and hypertension, even in long-standing cases. However, this is based on a single patient who also had cancer and refused standard care. Do not attempt this without medical supervision, especially if you have kidney disease or are on medication, as dosages may need adjustment.