As green tea contains caffeine, it is advised that you limit your caffeine intake to no more than about mg if you are pregnant or breastfeeding.

Side effects : No side effects were reported in the studies. Precautions : Green tea may increase the risk of congenital disabilities caused by folic acid deficiency. Tea can also decrease iron absorption. You may want to avoid drinking it with your meals. Liver problems have been reported with using green tea extract in pill form.

If you have liver disease, consult a healthcare provider before taking products with green tea extract. Interactions : Green tea and EGCG have decreased intestinal absorption—and thus, the therapeutic effects of—some of the following drugs.

Animal studies indicate that green tea extract and EGCG increase the extent of absorption of the following drugs:.

However, human studies are needed to confirm these results. ALA is an antioxidant fatty acid that helps the body make energy from sugars.

Uses : Preliminary evidence suggests ALA had the following effects. Dosage : The dose of ALA ranges from to 2, mg per day by mouth. Side effects : Some of the side effects of ALA are as follows. Precautions should be taken in the following instances.

Interactions : ALA may interact with the following medications. Conjugated linoleic acid CLA is a polyunsaturated fatty acid found in the following foods:.

Uses : A review suggested CLA had the following effects. While the effect of CLA on appetite is unclear, a review of a group of studies indicated that taking 3.

Overall, early evidence suggests that CLA could be used for treating obesity in addition to dietary modification. However, further research in humans is needed to confirm the results. Dosage : The dose used in clinical trials ranges from 1. Side effects : Most reported side effects were gastrointestinal side effects.

Precautions : Caution should be taken in people with the following conditions or characteristics. Interactions : Until more research is done on the drug interactions with CLA, it is unclear how CLA interacts with prescription and nonprescription medications.

Uses : Besides other amino acids in whey protein, tyrosine has had the following effects. However, outcomes from the study above are limited because it was conducted in only eight females with obesity.

Further studies with a larger sample size and a more diverse population are needed. Dosage : The specific amount of tyrosine was not explicitly stated in the study, but the dose of the whey protein powder was 45 g dissolved in milliliters mL of semi-skim milk.

More specifically, mL of the drink was given by mouth three times every five minutes. Interactions : Caution should be taken if you take the following medications.

Uses : Bitter orange Citrus aurantium contains a chemical compound called p-synephrine, which is known to have the following effects. Despite its popular use as an over-the-counter weight loss product, the quality of evidence is low to support the use of bitter orange for appetite control and weight loss in humans.

Dosage : The commonly used doses of p-synephrine range from 25 to mg per day by mouth. Precautions : Some studies have shown that bitter orange increased blood pressure and heart rate with long-term use i.

Caution should be taken if you have high blood pressure, irregular heart rate, or other cardiovascular diseases.

The safety of bitter orange is unknown in the context of pregnancy or breastfeeding. Interactions : Bitter orange contains furanocoumarins, compounds that block the activity of the drug-metabolizing enzyme cytochrome P CYP 3A4.

Some studies show that bitter orange juice increases blood levels of drugs, such as Neoral cyclosporine and Invirase saquinavir , broken down by the CYP3A4 liver enzyme. DHEA is a hormone produced by the adrenal glands and the liver. It serves as a precursor to sex hormones. DHEA dehydroepiandrosterone and 7-keto-DHEA are related but different.

A limited number of studies suggests that 7-keto-DHEA , a form of DHEA, decreased body fat in people who are overweight or obese.

The mechanism behind the weight loss effect of 7-keto DHEA is due to its thermogenic effect, resulting in increased energy expenditure and increased metabolic rate.

The dose of 7-keto DHEA used in clinical trials is mg per day by mouth. Uses : One clinical study suggested DHEA favorably impacted body composition. Dosage : One study used mg per day of DHEA. Dosages may range between 25 mg and mg per day.

Using DHEA at high doses i. Precautions : Caution should be taken in the following situations. Interactions : DHEA may interact with some of the following medications.

Some supplements that interact with DHEA include, but aren't limited to, the following:. In the United States, the Food and Drug Administration FDA does not regulate supplements the way it regulates prescription drugs.

That means some supplement products may not contain what the label says. When choosing a supplement , look for third-party tested products and consult a healthcare provider, registered dietitian nutritionist RD or RDN , or pharmacist.

There are no miracle dietary supplements that help with weight loss. Furthermore, weight loss supplements have been found to be contaminated with dangerous substances. Their use is generally not advised. A sustainable approach to weight management best involves a balanced diet and getting regular exercise that you enjoy.

Ephedra also known as má huáng is a stimulant that promotes weight loss by increasing thermogenesis and suppressing appetite. However, the Food and Drug Administration FDA banned the use of ephedra in dietary supplements due to safety concerns.

With the removal of ephedra from the market, bitter orange is commonly used as a substitute for ephedra due to the structural similarity between p-synephrine and ephedrine, the main component in the herb ephedra.

Despite the similarity in structure, p-synephrine acts differently from ephedra. Weight loss supplements can have side effects and interact with prescription drugs, over-the-counter drugs, and other dietary supplements. Additionally, some products might be adulterated or tainted with prescription-drug ingredients.

The best way to manage weight is to incorporate a healthy eating plan and moderate physical activity. A healthy dietary pattern includes a variety of vegetables, fruits, and proteins and limits foods and beverages high in added sugars, sodium, and trans fats.

Stress causes increased cortisol a stress hormone secretion which promotes increased food intake, especially intake of sweet and nutrient-poor foods. Therefore, increased stress may increase the risk of obesity and other health problems like high blood pressure, heart disease, and diabetes.

Some ways to manage stress include getting regular exercise , engaging in relaxing activities e. Stuby J, Gravestock I, Wolfram E, et al. Appetite-suppressing and satiety-increasing bioactive phytochemicals: A systematic review.

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Eat Right for Life. Food and Drug Administration. CFSAN Adverse event reporting system CAERS. Or F, Kim Y, Simms J, et al. Taking stock of dietary supplements' harmful effects on children, adolescents, and young adults. J Adolesc Health.

doi: Erdogan A, Rao SS, Thiruvaiyaru D, et al. psyllium for chronic constipation. Aliment Pharmacol Ther. Watanabe M, Risi R, Masi D, et al. Current evidence to propose different food supplements for weight loss: A comprehensive review.

Jäger R, Kerksick CM, Campbell BI, et al. International Society of Sports Nutrition position stand: Protein and exercise.

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Calcium plus vitamin D3 supplementation facilitated fat loss in overweight and obese college students with very-low calcium consumption: A randomized controlled trial [published correction appears in Nutr J.

Nutr J. National Institutes of Health Office Of Dietary Supplements. Vitamin D. Ford AC, Quigley EM, Lacy BE, et al. Efficacy of prebiotics, probiotics, and synbiotics in irritable bowel syndrome and chronic idiopathic constipation: Systematic review and meta-analysis. Am J Gastroenterol.

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Lactobacillus acidophilus. Batsis JA, Apolzan JW, Bagley PJ, et al. A systematic review of dietary supplements and alternative therapies for weight loss.

Obesity Silver Spring. Green Tea. Abe O, Ono T, Sato H, et al. Role of - -epigallocatechin gallate in the pharmacokinetic interaction between nadolol and green tea in healthy volunteers. Eur J Clin Pharmacol. Abdelkawy KS, Abdelaziz RM, Abdelmageed AM, Donia AM, El-Khodary NM.

Effects of green tea extract on atorvastatin pharmacokinetics in healthy volunteers. Eur J Drug Metab Pharmacokinet. Misaka S, Ono Y, Uchida A, et al. Impact of green tea catechin ingestion on the pharmacokinetics of lisinopril in healthy volunteers.

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Albassam AA, Markowitz JS. An appraisal of drug-drug interactions with green tea Camellia sinensis. Planta Med. Kucukgoncu S, Zhou E, Lucas KB, Tek C. Alpha-lipoic acid ALA as a supplementation for weight loss: results from a meta-analysis of randomized controlled trials.

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Lipids Health Dis. Published Feb 3. Mądry E, Malesza IJ, Subramaniapillai M, et al. Certain studies have shown that just three minute exposures to grapefruit essential oil each week helped participants suppress their appetites and practice healthy diet habits like slow, mindful eating. Dietary fibers, whether from food sources or in concentrated supplement form, have been used for hundreds of years to promote fullness, improve gut health and digestive functions, and help maintain strong immunity and heart health.

Despite the fact that fiber intake is inversely associated with hunger, body weight and body fat, studies show that the average fiber intake of adults in the United States is still less than half of recommended levels. What is it about fiber that dulls your appetite? This makes you feel full for longer so you can manage your calorie intake.

Eating a high-fiber diet has even been linked to a longer life span. Aim for at least 30 grams of fiber per day. Consume more high-fiber foods , including:. Supplements within fiber, such as psyllium husk , can help you meet your needs. Glucomannan is another type of water-soluble dietary fiber found in konjac root that can potentially curb your appetite by filling up your stomach.

Finally, fenugreek seeds , which are rich in fiber and other compounds, have been shown to possibly help with weight management by contributing to fullness. They can also suppress hunger levels, normalize glucose levels and reduce free radical damage associated with aging.

Studies have found that results associated with eating spices like cayenne with high-carb meals indicate that red pepper increases diet-induced thermogenesis heating the body and burning of fat and lipid oxidation. Other research regarding the effects of capsaicin , the phytochemical responsible for the spiciness of peppers, has shown that this compound can modulate metabolic activities through affecting transient receptors in the digestive system, such as one called TRPV1.

Focus on types like turmeric, black pepper, chili and cayenne pepper. Try adding some to homemade tea or detox drinks, marinades, on top of fish or other proteins, in a stir-fry, on veggies, or in soups. Protein has been found to be naturally filling and also requires the body to work harder to break it down.

Eating plenty of protein can contribute to reduced ghrelin levels , increased thermogenesis and a healthy metabolism — plus it can help build and maintain lean muscle mass, which equates to a healthy body composition.

CLA is even used as weight loss supplement, although findings on its effectiveness have been mixed. Include protein-rich foods in every meal and snack, aiming for about 30 grams of protein with each main meal of the day. Try replacing high-calorie junk foods, such as those with added sugar and white flour, with protein instead.

For the most benefits, focus on a combination of protein, healthy fats and fiber. For example, combine protein sources like poultry, grass-fed beef, fish, eggs, beans, legumes or yogurt with vegetables and fats, such as olive oil, avocado, nuts or seeds.

The keto diet is a high-fat, very low-carb diet that puts your body into the metabolic state called ketosis. Once in ketosis, you burn fat for energy instead of sugar. When in ketosis, many people report that they experience a drop in their appetite , especially for sugary foods and refined carbs.

The keto diet can be combined with intermittent fasting for even more help with weight control and managing food intake. Emphasize healthy fats in your diet, which are just as crucial for feeling full and staying satisfied as fiber and protein are.

At the same time, avoid sugar and most carbs other than non-starchy vegetables. To help regulate your appetite hormones and train your body when to expect to eat, try to have meals at the same times every day if you can.

Eat until satisfied, but not stuffed, to the point that you can skip snacks. Aim for balanced meals that will do the best job of turning off hunger. Consider stopping eating at least two to three hours before going to sleep, which helps support general metabolic health.

Try to eat about every three to five hours depending on your schedule and exact diet. Related: 7 Natural Fat Burners that Work. Is there a pill that curbs your appetite? While some formulas can help dull hunger, most are unsafe and can cause side effects.

Commercially sold diet pills usually contain a mix of stimulants, including caffeine, herbs, and sometimes digestive enzymes or acids. Generally, they come with adverse reactions, such as anxiety and indigestion, making them a risky way to shed extra weight. Some of the main reasons that appetite-suppressing weight loss products are considered to be at least somewhat dangerous include:.

However, too much caffeine within a short time period can cause strong side effects, such as:. Due to interactions with medications or changes in blood pressure, other side effects of popular weight loss pills can include:.

Some commercially available thermogenic supplements especially those containing ephedrine, also called ephedra have even been found to induce acute liver failure and contribute to serious reactions like excessive bleeding, increased pressure in the brain, fatigue, malaise and jaundice.

This is one reason why ephedrine is now banned as a dietary supplement ingredient in the U. What else will suppress your appetite naturally? Here are some natural appetite suppressant tips:.

Follow dosage directions carefully, as high doses can possibly cause dangerous reactions like poisoning, yellow appearance of the skin or mucous membranes, vomiting, dizziness, diarrhea, and heart problems.