Quick Verdict
Instant Knockout performs its main goal of helping you lose weight better, so it’s my choice between the two.
The effects on suppressing appetite, increasing metabolism and providing high energy levels to keep up with heavy training are undeniable.
Phengold is also a solid natural fat burner with high stimulant content, but it fails to match Instant Knockout in all areas.
It performs better, though, as a nootropic, mood, and focus booster, so if that’s what you’re after and want to pay a bit less cash, Phengold is a solid choice.
| Feature | Winner |
|---|---|
| Ingredients | Instant Knockout |
| Dosage | Instant Knockout |
| Effectiveness | Instant Knockout |
| Third-Party Testing | Draw |
| Clinical Research | Draw |
| Side Effects | Phengold |
| User Reviews | Draw |
| Price | Phengold |
Winner
Instant Knockout is the more potent fat burner naturally increasing metabolism and providing energy for working out.
That doesn’t discount PhenGold. It has mood boosting properties that might be beneficial for some users.
What Is PhenGold
PhenGold is a dietary supplement that supports weight loss by enhancing metabolism and reducing appetite.
It is formulated with natural ingredients like green tea extract, cayenne pepper, and L-theanine, which are known for their thermogenic and fat-burning properties.
The supplement boosts the body’s energy levels and improves focus, helping individuals maintain a healthier lifestyle and stay committed to their fitness goals.
Unlike traditional weight loss pills that rely on synthetic stimulants, Phengold aims to provide a safer, more sustainable option for those looking to manage their weight effectively.
Phengold is produced by Health Nutrition Limited, a company known for developing health and wellness supplements using high-quality, natural ingredients.
Health Nutrition Limited aims to create products that support physical health and promote overall well-being.
My PhenGold review goes into full detail on the formulation and my experience.
What Is Instant Knockout
Instant Knockout is a dietary supplement originally formulated to help professional athletes and fighters achieve peak physical condition by reducing body fat and improving energy levels.
It combines natural ingredients like green tea extract, cayenne pepper, and Glucomannan to enhance metabolism, suppress appetite, and support fat oxidation.
The supplement is designed to aid in weight management while maintaining lean muscle, making it popular among athletes and those looking to achieve a toned and fit physique.
Produced by Roar Ambition, a UK-based company specializing in sports nutrition, Instant Knockout is known for its high-quality formulations, which aim to maximize performance and body composition.
Roar Ambition uses natural, scientifically proven ingredients in its products, ensuring both safety and effectiveness.
Its commitment to transparency and quality has made Instant Knockout a trusted choice for individuals seeking a reliable and effective fat-burning supplement.
My Instant Knockout review goes into full detail on the formulation and my experience.
PhenGold vs. Instant Knockout Main Differences
Benefits
Phengold offers a range of benefits for those looking to manage their weight and boost overall health. It enhances metabolism, allowing the body to burn more calories throughout the day, even at rest.
The natural appetite suppressants in its formula help reduce food cravings, making it easier to maintain a calorie deficit.
Additionally, ingredients like green tea extract and cayenne pepper contribute to fat oxidation, helping the body break down stored fat more efficiently.
With added L-theanine, Phengold also supports mental clarity and focus, providing a balanced approach to weight management without the jittery side effects often associated with stimulant-heavy supplements.
Instant Knockout is designed to help users burn fat and retain lean muscle mass. Its thermogenic ingredients, such as green tea extract and cayenne pepper, increase the body’s core temperature, boosting metabolism and energy expenditure.
Including Glucomannan, a dietary fiber, helps promote a feeling of fullness, reducing the likelihood of overeating or snacking.
Instant Knockout also includes caffeine anhydrous, which enhances energy and alertness, making it particularly effective for regular workouts.
This combination of ingredients supports fat loss and enhances physical performance and stamina, making it a favored choice for fighters, athletes, and fitness enthusiasts.
Ingredients
While Instant Knockout is marketed as a personalized tool for fighters cutting weight, more specifically fat, and Phengold is aimed at all kinds of people looking to lose weight, the two formulations are similar and suitable for everyone.
As every good supplement should, both feature transparent ingredient lists with the exact dosages specified, allowing for accurate, detailed ingredient analyses.
I’ll start with the shared ingredients between the two products.
Very importantly, both are high in stimulants, namely caffeine anhydrous. Caffeine is the go-to substance many people use daily for a pick-me-up.
Its effects on energy levels are well known, and they are crucial when you need to maintain high physical activity and a frequent heavy workout schedule.
Instant Knockout has a mighty caffeine dose of 300 mg, equivalent to around three coffees, while Phengold boasts 225 mg of caffeine.
Additionally, Phengold contains green coffee extract that contains chlorogenic acid, which can block fat absorption and glucose release in the body [4][5].
As great as caffeine is for increasing energy levels, it also comes with possible crashes, jitters, and sleep impairment. This is why both products contain L-theanine, which works perfectly in tandem with caffeine.
L-theanine promotes relaxation without drowsiness, helping to improve focus and concentration and reducing the jitters associated with caffeine intake [6][7].
Each of the two supplements also contains 500 mg of green tea extract, which is rich in antioxidants, particularly catechins. It helps enhance metabolic rate, allowing for more efficient fat burning.
Green tea extract also provides a mild caffeine boost, which can help improve focus and energy levels during workouts [10].
Instant Knockout contains the vitamins B12 and B3. B12 is essential for sustaining energy levels, while B6 helps with the metabolism of fats, proteins, and carbs [2][3].
Phengold has a similar B vitamin complex, which includes vitamins B3, B6 and B12.
Another important part of the two formulations is Cayenne pepper. Cayenne pepper is a known spice that contains capsaicin, which is thought to boost metabolism and aid in fat loss.
Capsaicin, the active compound in cayenne pepper, has been shown to boost metabolism and increase calorie burning [9]. It also aids in appetite suppression by promoting feelings of fullness.
Phengold has twice the amount of Cayenne pepper with 200 mg.
The final shared component of the two is black pepper extract. The active component of black pepper is piperine, which improves the absorption rate of nutrients, ensuring that the body efficiently utilizes the supplement’s components [11].
The key difference between the two mixes is the powerful 1800 mg dose of Glucomannan in Instant Knockout.
This dietary fiber is obtained from the root of the konjac plant and is widely known for its potent appetite-suppressing properties [1].
Because of its great water-absorbing capacity, it expands in the stomach, creating a sense of fullness.
Vitamin D is also included in Instant Knockout only in a 45-mcg dose.
Vitamin D is important for maintaining general health and wellness, and some emerging evidence suggests that optimal vitamin D levels can help with weight management by regulating the storage and breakdown of fat cells.
This makes it easy to cut your calorie intake without feeling constantly hungry. Many scientific studies have emphasized Glucomannan’s capacity to help lose weight by directly altering satiety.
An element found only in Phengold is the amino acid L-tyrosine. It is responsible for producing neurotransmitters such as dopamine and adrenaline. These are essential for regulating stress, cognitive function, and mood [8].
DMAE is another element in Phengold that improves mood, motivation, mental clarity, and focus [12].
Effectiveness
Instant Knockout was the more effective of the two supplements regarding weight loss. I train hard and often, but my busy personal and work life often forces me to slip in my diet choices.
Instant Knockout’s formulation seriously diminished my appetite, and my evening snack urges all but disappeared.
This, paired with the boosted metabolism and very high energy levels, made sticking to my routines significantly easier, and the results were evident after two months with the product.
Phengold had a less pronounced effect on my weight loss. Although I experienced high energy levels and an initial weight loss, the process plateaued after around one month, and my weight remained steady. However, I cannot discredit the positive effects on my mood and energy.
Clinical Research
The clinical research behind Phengold and Instant Knockout revolves around the effectiveness of their individual ingredients rather than the supplements themselves.
For Phengold, studies have shown that green tea extract and cayenne pepper can boost metabolism and promote fat oxidation.
Green tea extract is rich in catechins, which have been proven to enhance energy expenditure and fat burning.
Cayenne pepper’s capsaicin content is known to increase thermogenesis and reduce appetite.
Additionally, L-theanine, found in Phengold, has been studied for its calming effects, which can help balance the stimulant properties of caffeine and support better focus and mental clarity.
Instant Knockout, originally formulated for professional athletes, also relies on well-researched components.
Green tea extract and caffeine anhydrous increase metabolic rate and enhance physical performance.
The fiber glucomannan has been clinically shown to promote a feeling of fullness, thereby aiding in appetite control.
Studies suggest that these ingredients, combined with regular exercise and a healthy diet, can contribute significantly to fat loss and improved body composition.
Side Effects
When considering weight loss supplements like Phengold and Instant Knockout, it’s important to be aware of potential side effects. Although both supplements use natural ingredients, individual reactions can vary.
Phengold’s metabolism-boosting and appetite-suppressing formula may cause mild digestive issues, such as bloating or nausea. Its caffeine content can also lead to jitteriness or sleep disturbances.
Instant Knockout, known for its powerful fat-burning properties, may trigger similar effects like restlessness, increased heart rate, and difficulty sleeping, especially for those sensitive to stimulants.
Additionally, its high caffeine and fiber content can occasionally cause digestive discomfort. To minimize these risks, users should start with a lower dose, monitor their reactions, and avoid taking these supplements too close to bedtime.
As far as my personal experience with the two goes, Instant Knockout’s high caffeine content did take some getting used to.
The L-theanine and green tea curb the worst of the jitters, but during the first week, I had some rough days and a few mild headaches.
Phengold’s side effects were less pronounced, but I also took it after I had used Instant Knockout, so I was generally already used to high caffeine at that point.
User Reviews
Phengold’s official website shows a full 5-star rating, but without access to all reviews, I find it difficult to believe this rating is accurate.
On the flip side, the product has received negative feedback on Amazon. While some users are pleased with it and have reaped the benefits, others claim no results even after a couple of months with it.
Instant Knockout’s official website review section is unavailable at the time I’m writing this. Third-party websites do hold some reviews, and they are mainly positive ones, with users describing the immense effects of the product.
But also worth noting are the reasonable complaints about the premium price and possible side effects.
Some experience headaches, and not everyone puts up with the heat buildup, which is a normal effect of the supplement working as it should.
The high caffeine content is also frequently mentioned in user reviews. For many, it’s a plus because it keeps them motivated and energized, but for users more sensitive to stimulants, the effect is too strong.
Price
| Fat Burner | 1 Bottle | 2 Bottles / Subscription 1st Month | 4 Bottles / Subscription 3rd Month |
|---|---|---|---|
| PhenGold | $59.99 ($2.00 per serving) | $47.99 ($1.60 per serving) | $35.99 ($1.20 per serving) |
| Instant Knockout | $65.00 ($2.17 per serving) | $130.00 ($2.17 per serving) | $195.00 ($1.63 per serving) |
My Experience PhenGold and Instant Knockout
Instant Knockout is a product designed initially for MMA fighters and boxers and does not play around.
The massive caffeine, Glucomannan, and Cayenne pepper doses work hard and fast, and you can feel the effects from the first day of intake.
This is great news for someone like me who wants fast results and is willing to work for them.
My fat loss was evident in the first month, and after two months with Instant Knockout, I shed around 10 pounds of pure fat, and the results were clearly visible.
However, this aggressive approach is not without drawbacks. The four capsules per day, spread throughout the day, can be a hassle, and I have forgotten to take a dose more than once.
The high caffeine content rattled me a bit in the first week, and the last capsule, which should be taken before dinner, disrupted my sleep a few times, especially on days when I hadn’t expended enough energy.
PhenGold is a potent combination of energy-boosting substances, as evidenced by the first few days of use.
The blend is intended to boost your energy, mood, and motivation, which is the most apparent benefit I noticed with the product.
Unlike similar products, I did not observe a significant drop in hunger, but Phengold’s nootropic stack made it easier for me to keep to my diet and exercise routines.
In terms of weight reduction, the supplement helped me lose a couple of pounds in 30 days. In reality, the effects were noticeable after two weeks, but then my progress stalled.
In summary, Phengold did moderately well as a weight loss supplement. However, as an energy booster and cognitive enhancer, it outperformed several dedicated nootropics I have tried.
Should You Choose Phengold or Instant Knockout?
As a fat burner and weight-cutting product, Instant Knockout delivers on its promises and name and is the better product.
The formulation reduces appetite quickly and effectively due to its high Glucomannan content, and the rest of the formulation ensures you’re almost never low on energy.
The metabolism-boosting effects are also noticeable, and you’ll literally feel the fat profusely sweating off you while training.
Phengold is neither low on caffeine nor exactly cheap, but it has a gentler approach and lower price compared to Instant Knockout.
Although the weight loss effects I experienced were not as good in my Instant Knockout test, the product excels as a supplement to keep your energy, motivation, and mental capacities high.
Winner
Instant Knockout
A powerful fat burning formula designed for athletes to increase thermogenesis and suppress appetite.
CHECK CURRENT DEALSRunner Up
PhenGold
An effective fat burning supplement to suppress appetite and speed up your metabolism.
CHECK CURRENT DEALSReferences
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