People who are having difficulty getting their bodies to burn fat through diet and exercise only may benefit from taking weight loss pills containing natural ingredients in clinically proven dosages.
Throughout my years as a fitness instructor, my team and I researched and tested hundreds of supplements to determine which diet pills perform best for people as natural weight loss solutions.
In this review, we will share our top seven natural supplements that proved to be most effective in our practice with clients over the years, and we will reveal which one provided the quickest fat-burning process with the fewest side effects.
Our Top Diet Pills in (September 2023)
1 - PhenQ (Editor's Choice)
Our team reviewed and ranked PhenQ as the best weight loss supplement on the list because it gave us the best weight loss results in the shortest amount of time with no unwanted side effects.
Unlike most weight loss pills, it contains sufficient amounts of caffeine and stimulants that won't give you jitters, a rapid heart rate, or sleep problems.
Although it does not contain highly stimulating ingredients, it has powerful, clinically tested fat-burning substances such as piperine and alpha-lacy reset, which make it reliably effective for helping people lose weight. It also helps with blood pressure.
As piperine from black pepper extract helps carbohydrate and fat breakdown, alpha-lacy reset, a proprietary complex of alpha-lipoic acid, cysteine, and magnesium, can neutralize free radicals, helping the body boost metabolism and promote fat burning [1].
Furthermore, the sufficient amount of caffeine and L-carnitine in this diet supplement can boost energy levels, reduce appetite, and improve mood, allowing you to perform better during workouts [2] [3].
“L-Carnitine is an essential nutrient in lipid metabolism, which promotes the transportation of long-chain-fatty-acids across the mitochondrial membrane, thus allowing the cells to break down fat and release energy from reserves of stored fat.”
- Jun-jie Zhang, Associate Professor at Sun Yat-Sen University
To sum it up, men and women with an active lifestyle may take PhenQ to improve strength, stamina, and focus, enabling them to work out longer, stay on track and lose weight quickly.
For many years, PhenQ has consistently helped my clients boost metabolism, mental focus, and physical performance, along with the strategic diet plan and pre-workout supplements.
Supplement Facts:
- Calcium Carbonate : 625 mg
- Caffeine Anhydrous : 150 mg
- L-Carnitine Fumarate : 142.5 mg
- α-Lacys Reset® : 25 mg
- Capsicum Extract : 8 mg
- Piperine Extract : 3 mg
- Clients report improved athletic performance through increased energy levels
- Can help strengthen bones due to its high calcium content
- All of the ingredients have been scientifically proven to aid in weight loss
- Risk-free due to its 60-day money-back guarantee
- It is only available for purchase through the company's website
2 - LeanBean
Another natural diet pill that our team recommends after a hands-on review is LeanBean, which is widely regarded as the best weight loss pill for women.
Some of my female clients who were looking for a weight loss pill to naturally solve problems with stubborn belly fat saw results within a few weeks with LeanBean's blend of natural ingredients.
Leanbean contains glucomannan, a dietary fiber extract derived from the Konjac root plant that can help limit daily calorie intake by slowing gastric emptying, so you feel full longer [4].
Similarly, the turmeric and green tea extract content in this weight loss pill may help increase body heat, which leads to increased fat oxidation and energy expenditure, allowing you to burn stubborn body fat [5].
Furthermore, this natural fat burner contains antioxidants, minerals, and fat-soluble vitamins that may help strengthen your immune system and keep you healthy so that you can recover from post-workout muscle soreness faster and keep up with your normal routine [6].
By taking LeanBean diet pills for women, active women can stop craving unhealthy foods, and boost their metabolism and endurance, so they can eat fewer calories, work out longer, and improve their well-being.
Several of my female clients have noticed a significant decrease in their appetite after taking LeanBean for 14 days, leading to less food intake and gradual weight loss over 90 days.
Supplement Facts:
- Glucomannan : 1000 mg
- Choline : 27.5 mg
- Garcinia Cambogia Extract : 33.33 mg
- Green Coffee Bean Extract : 16.67 mg
- Turmeric : 16.67 mg
- Acai Berry Extract : 6.67 mg
- May help with mild energy and mood enhancement
- Reduced food intake due to decreased appetite
- Promotes overall well-being
- First-time users may experience stomach discomfort
3 - PhenGold
PhenGold could be a good choice for people who want to achieve healthy weight loss by boosting metabolism and improving cognitive abilities without having to worry about side effects.
This thermogenic fat burner contains ingredients and stimulants whose dosages have been backed by science to be effective for improving digestion, reducing calorie consumption, and eliminating body fat.
Furthermore, the mood-enhancing ingredients such as Rhodiola Rosea and L-tyrosine in this thermogenic fat burner may improve physical performance through improved focus and concentration [7].
Also, the green coffee beans in this weight loss supplement have anti-inflammatory properties and natural antioxidants in the form of polyphenol compounds, which may help the body recover faster after exercise [8].
Taking PhenGold can improve alertness, stamina, and metabolism, making it easier for active men and women to stay motivated, train longer, and lose belly fat quickly.
After consuming PhenGold for four weeks, most of my clients could work out for an extra hour because they had more energy and better concentration.
Supplement Facts:
- Green Tea : 500 mg
- Green Coffee Bean Extract : 100 mg
- L-Tyrosine : 350 mg
- Rhodiola rosea : 250 mg
- Cayenne Pepper : 200 mg
- Caffeine : 225 mg
- Well-balanced ingredients backed up by scientific research
- Promotes rapid post-workout recovery
- Helps in the improvement of mood and brain functions
- May not be good for people who are sensitive to stimulants
4 - Instant Knockout Cut
Don't let the aggressive packaging mislead you into thinking that this potent diet pill is only for men. The Instant Knockout Cut is designed for anyone who works out hard, male or female.
This effective weight loss pill contains a high amount of the dietary fiber glucomannan, which helps prolong feelings of fullness so that you avoid taking in more calories that can contribute to belly fat [9].
Also, this product contains high amounts of stimulants, such as caffeine and green tea extract, to help boost metabolism, energy levels, and mental alertness. Furthermore, the added Vitamin D3 can help with lean muscle mass gains as well as muscle and bone strength-building [10].
Instant Knockout Cut may assist people in losing weight more quickly by suppressing their food cravings, raising their metabolic rates, and providing them with additional energy.
My clients have noticed a significant increase in energy and strength after taking this weight loss pill for about a month, which has made it easier for them to lift heavier weights, do more reps, and work out for longer.
Supplement Facts:
- Glucomannan : 1800 mg
- Green Tea Extract : 500 mg
- Caffeine Anhydrous : 300 mg
- L-Theanine : 100 mg
- Cayenne Powder : 100 mg
- Vitamin D3 : 1800 IU
- May help in boosting metabolism
- Helps enhance mood and concentration
- Can significantly reduce appetite
- Caffeine-sensitive individuals may experience jitters and insomnia
5 - Transparent Labs Fat Burner
One of the best weight loss pills available today is a fat burner from Transparent Labs, which contains unique ingredients that aren't found in any of the other supplements on the list.
Take, for example, synephrine and 5-HTP. Transparents labs included these ingredients in their formula so that they could work in synergy to reduce appetite without affecting mood levels, allowing you to eat fewer calories without losing motivation to work out every day [11] [12].
“Therapeutic administration of 5-HTP has been shown to be effective in treating a wide variety of conditions, including depression, fibromyalgia, binge eating associated with obesity, chronic headaches, and insomnia.”
- Timothy C. Birdsall, Doctor of Naturopathic Medicine
Moreover, the addition of coleus extract and white willow in this weight loss pill may help reduce the time it takes for the body to recover from sore muscles after a workout due to its analgesic properties [13].
Men and women who are active can take this fat-burning supplement to suppress their hunger and increase thermogenesis, which allows them to eat less and burn stubborn body fat even when they are at rest.
While taking this fat-burning supplement, my clients and I could extend our workout routine without getting too tired.
Supplement Facts:
- Coleus Extract : 250 mg
- Green Tea Extract : 200 mg
- 5-Htp : 150 mg
- L-Tyrosine : 150 mg
- Caffeine Anhydrous : 120 mg
- Cayenne Pepper : 50 mg
- No proprietary blends
- May help speed up fat metabolism
- Helps reduce post-workout fatigue
- Some consumers experienced indigestion during the first week of use
6 - Trimtone
With one capsule of Trimtone per day, women can supplement their workout and lose body weight faster while also maintaining their hormonal balance and controlling their diet.
Trimtone's green tea extract contains antioxidants that help the body maintain hormonal balance by neutralizing free radical damage and preventing oxidative stress.
By keeping your hormones balanced, you can prevent further weight gain and work on losing the excess pounds you already have [14].
Additionally, this weight loss pill contains enough caffeine anhydrous to help raise your body temperature; green coffee beans, which may aid in the rapid conversion of carbs from food intake into energy; and glucomannan, which may help in the suppression of appetite [15].
In essence, Trimtone promotes fat burning, improves metabolism, and inhibits fat accumulation to help women lose weight.
Many of my female clients who took Trimtone for three months reported a significant improvement in their general well-being, which helped them maintain their workout schedules.
Supplement Facts:
- Caffeine Anhydrous : 120 mg
- Green Coffee Bean Extract : 100 mg
- Green Tea : 100 mg
- Glucomannan : 100 mg
- Grains of Paradise : 40 mg
- May help prevent weight gain by balancing hormones
- Increase the rate of normal fat metabolism
- Worry-free purchase due to its 100-day-money-back guarantee
- Some consumers didn’t lose weight
7 - PrimeShred
Finally, if you're a fitness enthusiast looking for an effective weight loss supplement to help increase muscle size and strength, Prime Shred may be your best choice.
It contains mood-enhancing ingredients such as DMAE, L-tyrosine, and Rhodiola Rosea, which can improve mind-muscle connection, alertness, and focus.
So, even if you're limiting your calorie intake, you can stay motivated to work out to build lean muscle [16].
Also, this supplement's thermogenic ingredients, such as Cayenne pepper, caffeine, and green coffee beans, work together to break down accumulated fat within cells, allowing you to burn stored fat and remove more calories from your body [17].
Furthermore, other powerful ingredients like L-theanine and green tea extract in this product may help turn carbs and fats into energy, helping individuals in losing weight faster.
"We've shown that green tea is able to increase your energy expenditure — so the amount of calories you burn — and also to increase the amount of fat you are burning."
- Rick Hursel, School for Nutrition, Toxicology & Metabolism, Maastricht University
This muscle-building weight loss supplement can help active men improve their energy and mental abilities, so they can burn fat quickly by staying on track with their workouts every day.
After four weeks of use, my clients and I have felt a significant boost in energy and focus, which has helped us stay motivated and feel less tired after training.
Supplement Facts:
- Green Tea Extract : 500 mg
- L-Tyrosine : 300 mg
- Rhodiola Rosea Root : 250 mg
- Caffeine Anhydrous : 225 mg
- Cayenne Pepper : 200 mg
- DMAE (Dimethylaminoethanol) : 150mg
- May help you stay motivated by providing you with more energy
- Reduces post-exercise fatigue
- Assists with lean muscle mass growth
- The high dose of stimulants in these supplements may cause palpitations in caffeine-sensitive people
Buyer's Guide - How To Choose The Best Diet Pills For Weight Loss
Many weight loss pills on the market today claim to help you lose weight by increasing thermogenesis, decreasing hunger, and preventing fat formation. However, deciding which of the many weight loss supplements will work best for you can be challenging.
That's why we've put together a guide on how you can find the best diet pills and how to pick among them to help you lose the most fat in the shortest amount of time without side effects or any inconvenience.
Key Ingredients
Stimulants like caffeine are a common and popular ingredient in the best weight loss supplements that are clinically proven to help your body burn fat [18].
Manufacturers frequently include stimulants in their fat-burning products to bolster mood and increase motivation among consumers, as calorie restriction while using a fat burner can cause mood swings.
Most stimulants help your body turn food into energy, giving you the strength and stamina to do strenuous exercises, recover from muscle soreness, and stay motivated on the next training day.
Some stimulants also function as nootropics, increasing alertness and concentration [19].
On the other hand, many people are caffeine-sensitive. They usually get jitters, sleepless nights, and a fast heart rate when they drink stim-based products.
Our team recommends that you first assess your tolerance to caffeine before you purchase any product containing such stimulants.
People who understand their sensitivities and tolerances will be able to determine whether they can consume caffeine-rich products or whether they should consider purchasing stim-free supplements.
The Type of Weight Loss Pills
Various types of weight loss pills are available to help you lose weight in one or more ways.
However, the possible benefits that they may provide vary depending on the ingredients they contain and how they work to help people lose weight.
Some weight loss pills may significantly boost metabolism because they work primarily by increasing thermogenesis, or body heat, which speeds up the breakdown of food even when you're not doing anything.
Others work as appetite suppressants by slowing down gastric emptying or affecting certain hormones that make people want to eat, so you can feel less hungry and consume fewer calories.
In this section of the buyer's guide, I'll go over the different kinds of weight loss supplements in detail so you can figure out which type of diet pill you need to help you achieve your weight loss goals quickly.
Different Types of Weight Loss Supplements
Fat Burning Supplements
These weight loss supplements have thermogenic ingredients like caffeine, green tea, and pepper extracts that are known to help increase body temperature to speed up metabolism, fat burning, and nutrient absorption [20].
In other words, thermogenic fat burners help trigger your fat cells to free fatty acids so that your body can easily convert them into energy to fuel your day.
According to research, the higher your body temperature, the faster your basal metabolic rate and calorie burn, which allows you to lose weight without a strict diet and exercise [21].
The best diet pills on our list contain two or more fat-burning ingredients such as alpha-lacy reset, caffeine, and cayenne pepper, which help burn fat efficiently. So, if you want to burn excess body fat without much effort, you may consider purchasing a thermogenic fat burner.
Appetite Suppressants
On the contrary, these weight loss pills help people lose weight without affecting the body's internal temperature or metabolism.
Instead, they are designed to make people feel fuller for extended periods throughout the day, even if they are already on a low-calorie diet or a low-fat diet [22].
Typically, an appetite suppressant pill contains fiber-rich ingredients such as glucomannan and fenugreek, as well as mood enhancers such as 5-HTP that boost mood.
Consequently, when you take an appetite suppressant, you may reduce your eating frequency and avoid sweet cravings, which may lower your calorie consumption and force the body to burn stored fat for energy.
So, if you naturally have a huge appetite and have difficulty staying on a low-calorie diet, you may want to consider taking appetite suppressant pills to help you lose bodyweight faster.
Carb Blockers
These weight loss supplements work by preventing carbohydrate-digesting enzymes from breaking down the carbs you eat, letting them pass through your digestive system without being absorbed by your body [23].
Although this type of diet pill showed little help for many people, according to some online reviews, research shows that cutting back on carbs is an integral part of losing a moderate amount of weight and keeping your body weight under control [24].
In other words, carb blockers don't change your body temperature or make you feel less hungry.
Instead, they may cause your body to be less able to absorb more calories from a high-carbohydrate diet, resulting in fewer calories consumed each day and weight loss over time.
Stimulants
These weight loss supplements are widely used by people to boost energy, focus, and mental alertness temporarily.
Stimulant-based supplements work well for athletes and active individuals looking to increase their motivation and focus in their day-to-day routine at home or work.
When combined with a healthy diet and regular exercise, they can prompt people to make better choices for their health and ultimately, weight.
Stimulants such as caffeine anhydrous, green tea extract, and green coffee bean extract may also work to suppress hunger and increase metabolism and energy levels, enabling you to improve physical performance [25].
However, consumers should note that these boosts in energy levels last only for a short time and may cause side effects such as fatigue and depression.
As a result, people seek the energy that these stimulants provide and crave that energy again, leading to increased tolerance and even substance addiction.
Unfortunately, long-term use of these substances at high doses can cause very high body temperatures, irregular heartbeats, jitters, and sleeplessness.
Blends
Finally, these weight loss pills are considered an all-in-one weight loss method because they help people lose weight in more than one way.
Due to the unique mix of ingredients, the supplement may help to increase metabolism, decrease hunger, improve mood, and stop carbs and fats from being absorbed by the body.
The brands on our list represent this type of weight loss supplement. Our research team believes that combining multiple ingredients into a single weight loss pill is the most effective way to burn fat. In this way, people can speed up their weight loss journey.
Dosage
The dosage of weight loss pills is crucial when it comes to choosing the best diet pills because it determines whether the weight loss supplement will be effective at accelerating weight loss in overweight people struggling with belly fat.
Also, the dosages of the ingredients in a diet pill can be a factor in determining whether or not it is safe because the human body has varying levels of tolerance for certain substances [26].
Consider caffeine. Caffeine is not for everyone, so knowing your tolerance for the substance and the dosage of the supplement you're taking is critical so you don't experience the unwanted side effects it can cause.
Also, when you think about dosage in general, consider how many capsules you'll need to take each day and how much of each ingredient is in every serving to avoid having digestive problems from taking too many pills.
Full Label Transparency
When searching for dietary supplements, it is critical to always read the label.
If you see a product with a label that lists the ingredients but not their exact dosages, the manufacturer is likely using a proprietary blend of ingredients [27].
Some manufacturers may use “proprietary blends” to avoid including the necessary amount of active ingredients to support the product's effectiveness.
However, because most products today use proprietary blends, you can choose a reputable brand with a track record of producing high-quality products or one with a high number of positive user reviews.
Discounts and Guarantee
If you wish to see consistent results, you may need to take supplements for several months or even years. Having said that, it is more budget-friendly for anyone to buy in bulk because some manufacturers offer considerable discounts if you purchase multiple bottles at once.
You can definitely save more money if you use a product that offers two free bottles when you order three bottles.
Also, if you're new to the product, you don't have to worry about purchasing multiple bottles. Many supplement brands offer money-back guarantees on unopened bottles if you're unhappy with them or think they don't measure up to their claims.
Some manufacturers may offer a 30-day, 60-day, or even 100-day money-back guarantee, allowing you to make a risk-free and worry-free purchase.
Safety and Potential Side Effects
Although the Food and Drug Administration (FDA) does not review or approve dietary supplements, these products contain high-quality, all-natural ingredients in clinically proven dosages, so you can consider these diet pills to be safe.
Nonetheless, we should conduct our own research to determine which supplements are best for us based on our current health and medical conditions.
So, before you buy and take any supplement, check with your doctor.
Confirm to see whether you have any allergies, sensitivities, or intolerances to the product's ingredients. This way, you can avoid drug interactions and side effects.
Value for Money
To get the most bang for your buck, look for a supplement containing only natural ingredients with science-backed dosages clearly listed on the label.
Long-term use of all-natural ingredients is safer and has fewer side effects.
Also, knowing that the dosages have been clinically tested and proven safe and effective and that the products you're purchasing contain these exact amounts gives you peace of mind and confidence that you're making an excellent health investment.
By ensuring that all of these factors are present, you can almost guarantee that it will work well with your system and help you achieve your weight loss goals in the least amount of time and with the fewest side effects.
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FAQs
Are Weight Loss Pills Safe?
Yes, weight loss pills are generally considered safe because they are manufactured in strict adherence to good manufacturing practices (GMP).
Also, modern diet supplements contain all-natural ingredients in clinically-tested doses, and prescription weight loss medication are FDA approved and regulated, so taking prescription weight loss pills may also be safe.
How Can You Get The Best Results From Diet Pills?
You can get the best results from diet pills by combining them with a healthy, active lifestyle. Taking natural weight loss pills or a prescription weight loss drug may still help the body burn fat even when you're not working out.
However, you can maximize its weight loss effects by taking it in conjunction with a healthy diet and regular exercise.
How Do Weight Loss Pills Work?
Weight loss pills work by suppressing appetite, enhancing fat metabolism, and improving energy.
In effect, you can reduce your calorie intake and work out for extended periods, which can help you fast-track your weight loss journey and reach your goals faster.
How Long Does It Take for Diet Supplements to Work?
It may take two to four weeks for diet supplements to work in some people, depending on their body weight, calorie intake, and level of fitness.
For others, it may take three months of consistent use before they notice any significant weight loss changes.
Do Natural Diet Pills Help Improve Athletic Performance?
Natural diet pills can help improve athletic performance by increasing energy, strength, and endurance levels.
Also, they can enhance people’s moods, allowing them to concentrate more on their workout, perform more reps, and cope with stress better.
Our Recommended #1 Product
Our team agreed that PhenQ is our number one product recommendation out of all the diet pills we have tested.
Since it contains only natural ingredients in the right amounts, we were able to combine it with our pre-workouts to perform better at our daily gym sessions and further increase the rate of fat loss without compromising the muscles.
PhenQ proved to be safe, affordable, and effective in terms of energy, and appetite suppression, which ultimately led my clients to reach their weight loss goals noticeably faster.
Our #1 Recommendation
PhenQ
- Clients report improved athletic performance through increased energy levels
- Can help strengthen bones due to its high calcium content
- All of the ingredients have been scientifically proven to aid in weight loss
- Risk-free due to its 60-day money-back guarantee
- Get the BEST PRICE until the end of September
- It is only available for purchase through the company's website
About The Author
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I’ve always struggled with losing weight, but these diet pills did help shed some stubborn fat. Glad I gave them a chance.