Summary
Highlights
Protein is a powerful appetite suppressant, with studies showing it reduces hunger, decreases cravings, and promotes longer-lasting fullness. Consuming at least 35 grams of protein is particularly effective. It also lowers ghrelin (hunger hormone) and increases appetite-suppressing hormones like CCK and GLP-1. Protein has a thermic effect, burning 20-30% of its calories during digestion, and is crucial for muscle preservation during weight loss. Eating protein first in meals helps manage hunger and make better food choices.
Dietary fiber effectively controls appetite by increasing satiety, reducing overall calorie intake, and slowing digestion. This helps stabilize blood sugar by providing a gradual release of glucose. Fiber lowers ghrelin levels, delays stomach emptying, and supports a healthy gut microbiome by fostering beneficial bacteria that produce short-chain fatty acids, further boosting GLP-1 and PYY. It adds bulk to your diet, making you feel full without extra calories. Recommended fiber intake is 30g+ daily, found in foods like berries, legumes, and avocado.
Drinking water before meals can reduce food intake and promote fullness. Contrary to past beliefs, water during meals aids digestion and nutrient absorption. Swapping high-calorie drinks for water or sparkling water (perhaps with electrolytes for flavor) can significantly cut calorie consumption. Often, hunger is mistaken for thirst; drinking water first can help discern true hunger. Water adds volume without calories, contributing to satiety.
Allulose, a rare low-calorie sweetener, does not raise blood sugar and can even lower the blood sugar response to meals. Studies in mice indicate it suppresses hunger-associated feeding and may counteract obesity and diabetes. It can be incorporated into drinks like coffee or smoothies, or used in baking for sweet treats without the negative impact of sugar. A dosage of 10-15 grams is suggested for GLP-1 effects.
Akkermansia Muciniphila is a probiotic strain that promotes GLP-1 secretion, which is often impaired in individuals with insulin resistance, fatty liver, or obesity. Supplementing with Akkermansia can help rehabilitate the gut, improve gut barrier function (reducing leaky gut), lower inflammation, enhance metabolic function, and decrease fat storage. While not directly focused on appetite, its metabolic benefits indirectly influence hunger and satiety.
Kōura, a bitter hops extract developed in New Zealand, acts as a short-acting GLP-1 booster. A 2019 study showed it significantly reduced hunger during a 24-hour water-only fast, especially during typical meal times. It promotes fullness, reduces calorie intake, stimulates GLP-1 secretion, and improves blood sugar control by preventing spikes and crashes. It also enhances digestive health, contributing to better appetite regulation. Taking two capsules before each meal is recommended.
Exercise is a multifaceted appetite suppressant. It enhances GLP-1 secretion, regulates leptin and ghrelin, leading to reduced hunger. It improves mood, releases endorphins, and provides an alternative to emotional eating. Exercise increases energy expenditure, improves sleep (reducing cravings), and enhances the gut microbiome. Muscle building through resistance training boosts metabolism and insulin sensitivity, quickly improving blood sugar control. A compound from intense exercise, a combination of lactate and phenylalanine, travels to the brain to stifle appetite, responsible for about 25% of exercise's anti-obesity effects.
Apple cider vinegar can reduce body weight, BMI, hip circumference, and visceral adiposity, while increasing HDL-C. It significantly lowers the blood sugar response to meals and improves insulin sensitivity. Including one to two tablespoons daily, particularly before the largest meal or a carbohydrate-rich meal, is a simple way to integrate this natural suppressant.
Berberine is not a direct GLP-1 agonist but indirectly impacts metabolism. It improves glucose metabolism and insulin sensitivity by activating AMP-activated protein kinase (AMPK), known as the 'metabolic master switch.' For individuals focusing on insulin sensitivity and blood sugar, taking one to two capsules before meals can be beneficial. It's suggested to add these suppressants one at a time to monitor individual effects.