update: - advertising disclosure

stacker 2 review - 8 things you need to know

stacker 2 is a diet and energy supplement that claims to be “the world’s strongest fat burner.” apparently, this diet and energy supplement, made by one of the world’s top pharmaceutical companies, can boost energy levels and raise metabolic levels. however, with so many of the product’s ingredients containing high amounts of caffeine, the chance of potential side effects is higher than normal.

our research team wanted to learn more about stacker 2 and its effectiveness, so delved into the ingredient research on white willow bark, yerba mate, and guggulsterone. in the end, we compared the research we gathered on the supplement to the few available customer testimonials to see if this pill made by “diet & energy specialists” is as amazing as they claim.

stacker 2 can be purchased through their official site.

stacker 2 readers: noom is offering our readers a risk-free trial, for a limited time. click here for more information!
overview

what is stacker 2?

first off, stacker 2 operates as a fat burner, employing the principles associated with the notorious eca stack. the eca stack comprises a blend of ephedrine, caffeine, and aspirin tablets. according to the manufacturer’s claims, the synergistic effect of these components is purported to facilitate weight loss and enhance athletic performance. this formulation gained notable traction in the early 2000s, leveraging the endorsements of high-profile figures like wwe wrestlers, nascar drivers such as kenny wallace, and other celebrities who featured prominently in its advertisements.

the ingredients are yerba mate, green tea, guggulsterone, cassia mimosoides, white willow bark, and caffeine 200mg. you ll take one to three per day after meals. the blister pack makes it easy to take with you on-the-go. supposedly, this formula promotes weight-loss by boosting energy levels and metabolism, but does science back this claim?

  • journal of functional foods – yerba mate has, in fact, been shown to have some impact on weight loss by increasing calorie burn.
  • nutrients – if you partner yerba mate with exercise, it appears to increase metabolism and satiety, while improving mood.
  • industrial crops and products – there’s even evidence that the waste leftover after processing is rich in antioxidant compounds – so yerba mate has some benefits to look forward to – based on research.

stacker 2 was brought to the market in 1997 by nve pharmaceuticals. it s earned an a+ rating with the better business bureau (bbb). it s available at local stores and through the official website.

we like it contains a few natural ingredients, and it appears to be affordable, but continue reading!

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customer service

customer service contact information

  • address: nve pharmaceuticals – 15 whitehall rd. andover, nj 07821
  • email – customer service: weborder@nveusa.com
  • usa and international sales: edwardmiller@nveusa.com
  • contact form: https://www.stacker2.com/contact/
  • phone: 973.786.7868
side effects

stacker 2 side effects – “look out?”

the first concern was the intensity of stacker 2 side effects. “this one contains multiple fat burners,” said our research editor.  “while they’re supposed to boost metabolism, there’s a chance you could experience adverse reactions.”

“i noticed it also made me jittery and sometimes gave me a headache,” said one user.

“even after doing intensive workouts i still had too much energy. i had to stop taking them, because occasionally i had caffeine crashes. they are not fun at all,” offered another.

side effects are rare, so we found some users that didn’t experience adverse reactions.

“no headache, jitters or anxiety like other caffeine pills,” commented a dieter.

results

results – “no weight-loss!”

based on some stacker 2 reviews, there’s were customers that didn’t notice results. “i did not experience any weight loss on this product. i did have more energy, but i was looking for a fat burner,” said one customer online.

“the pill does give a great amount of energy, but the claim of it being a fat burner is bogus,” said a user.

upon reading further reviews, some customers noticed results. “i tried them again, and they helped me lose weight,” explained a customer.

“after the first one, i felt warm and could tell my metabolism was increasing,” stated another.

our research has shown if there is some particular part of a diet supplement that’s troublesome, like not producing results, the likelihood of long-term success is slim. if stacker 2 doesn’t help you lose weight or burn fat, is it worth it?

the science

the science – “legitimate?”

some of the stacker 2 ingredients are proven to work. the white willow bark extract, green tea extract, and kola nut are common ones that are mildly effective.

white willow bark is commonly used in weight-loss supplements due to its anti-inflammatory effects, according to phytotherapy researchadditionally, guggulsterones have been shown to have an appetite-suppressing effect, per the journal of dietary supplements

however, the results have no ties to this formula. we at dietspotlight find clinical research to be important to the review process. when there’s no solid-science used to support the claims, we have concerns.

lawsuit

lawsuit

nve pharmaceuticals, an andover, n.j., manufacturer of weight-loss supplements, filed suit march 9 in u.s. district court, claiming that the food and drug administration?s ban against ephedra violates the 1994 dietary supplement health and education act.

nve pharmaceuticals filed for chapter 11 bankruptcy in u.s. bankruptcy court, district of new jersey, on august. 10th 2005.

what users are saying

what users are saying

“i mostly just take it after a big meal, something that would put you down for a while like thanksgiving, it honestly helps me feel less tired and bloated after meals like that.”

“i want to try and see how it works, its ok takes longer to start working around 1 hour and lasts around 3 to 4 hours, you don’t know till you try to see how it works. not for me, 5 hour energy has you beat.”

“i have taken a prescription for weight loss before and when i was younger it worked very well. now as i m getting older i found it didn t work quite as well and almost left me more hungry than taking away my appetite. so i decided to give these a try i had heard around that they were good for energy and appetite control, they definitely give you good energy i recommend not drinking too much caffeinated beverages as i did and it left me with a hard time getting to sleep.

the most that i have taken is 2, and that works good for me. sometimes i get a bit of a headache with these. so i do not take them every day. price is good. appetite control is there, sometimes they cause nausea.”

bottom line

the bottom line – does stacker 2 work?

will stacker 2 help you lose weight? we like that it contains few natural ingredients and that we found some positive customer comments, but the lack of research showing it works is concerning. also, reports of negative side effects and no real results leaves us a bit skeptical about giving it the thumbs up.

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stacker 2

q:
what is stacker 2?
a:

stacker 2 operates as a fat burner, utilizing the principles of the notorious eca stack, a combination of ephedrine, caffeine, and aspirin tablets. it contains yerba mate, green tea, guggulsterone, cassia mimosoides, white willow bark, and 200mg of caffeine per serving. this formulation, introduced to the market in 1997 by nve pharmaceuticals, gained popularity in the early 2000s and earned an “a+” rating with the bbb.

q:
how does stacker 2 promote weight-loss?
a:

according to the manufacturer’s claims, stacker 2’s weight-loss promotion is attributed to its blend of ingredients, including yerba mate, green tea, guggulsterone, cassia mimosoides, white willow bark, and 200mg of caffeine. these components supposedly boost energy levels and metabolism. research suggests that yerba mate, a key ingredient, may contribute to weight loss by increasing calorie burn, enhancing metabolism and satiety when combined with exercise, and providing antioxidant benefits based on studies published in the journal of functional foods, nutrients, and industrial crops and products.

q:
what are the side effects of stack 2?
a:

stacker 2’s potential side effects are a matter of concern. users have reported experiencing jitteriness, headaches, and excessive energy, even after intensive workouts. some users, however, did not encounter adverse reactions and mentioned the absence of common issues such as headaches, jitters, or anxiety associated with other caffeine pills. it’s important to note that these observations are based on user experiences, and individual reactions may vary.

q:
what are the ingredients in stacker 2?
a:

stacker 2 ingredients are yerba mate, caffeine, green tea leaves, guggulsterone, cassia mimosoides extract and white willow bark.

q:
does stacker 2 work?
a:

there’s no scientific research backing the effectiveness of stacker 2. we found studies linking green tea and caffeine to weight-loss, but nothing specific to this formula.

q:
where can i buy stacker 2?
a:

stacker 2 can be purchased using their official site.

q:
how much does stacker 2 cost?
a:

stacker 2 costs $19.95 on the official website.

q:
how should i take stacker 2?
a:

you should take one stacker 2 capsule, three times per day. each bottle contains 100 capsules or about a 30-day supply. the 2022足球世界杯德国队分组 recommends not exceeding three pills per day.

q:
how much caffeine does stacker 2 have?
a:

each serving of stacker 2 pills contains 200mg of caffeine.

q:
do stacker 2 pills give you energy?
a:

stacker 2 pills does claim to help boost your energy, but users’ experiences when using the supplement are varied.

q:
does stacker 2 contain ephedra?
a:

stacker 2 does not contain ephedra.

q:
what was in the original stacker 2?
a:

the original stacker 2 formula contained primarily ephedra, caffeine, and asprin. however, the new stacker 2 formula does not contain ephedra or asprin per fda regulations.

q:
is stacker 2 a stimulant?
a:

stacker 2 is a weight-loss supplement that contains various stimulants. the most active ingredient in stacker 2 is ephedrine, which is derived from the herb ma huang and acts as a stimulant to help burn fat and increase your energy levels. other ingredients used in stacker 2 include caffeine anhydrous, synephrine and yohimbine, all of which are stimulants known to speed up your metabolism. however, due to the presence of stimulants in this supplement, it’s important to be mindful when taking it – especially if you have heart or blood pressure problems.

45 stacker 2 reviews

  • michelle

    i took one pill at 6 am. i feel jittery and my heart is racing. it’s almost 2 pm now and my pulse is 130. i don’t like this pill.

    reply
    • mimi

      i went to the emergency room almost unconscious and committing for hours. i am lucky to be alive

      reply
  • nola

    i was size 20 and 240 pounds before i start on stacker 2 ,when i took stacker 2 i love it ,it boost my energy to go the whole day ,it help me not to want food all the time but most of all it drop me down to a size 14 and 195 pounds,i stop using it when me and my boyfriend tried for a baby and we did have one 2 months ago i gain up to 249 and back up to size 18 now i just start on stacker 2 today had to loose all that weight before work and …..yes ….it may not work for everyone but it definitely work for me !!

    reply
  • jessica (verified purchase)

    stackers 2s put me in the hospital last night.. i took 2 and it caused me to od on caffeine .. i was diagnosed with accidental caffiene overdose.. i thought i was dying!!

    reply
  • carol king

    stacker 2 was horrible for me i have been sick to stomach throwing up for 6 hours now extremely jittery chills not safe very scary feeling

    reply
    • bella

      these folks with their back killing them, throwing up for days at a time, having to go to the er for their legs being ‘jelly’…..i’m no doctor, but i would bet that it’s not the ‘stackers’ that are making your that ill. find out what is really going on before you blame them. seems to me, you didn’t wash your hands well after going out and you caught a stomach bug or the flu. some major dramatics going on. it’s probably safe to say, those are the ones who are going to sue the 2022足球世界杯德国队分组 for millions when you probably just had too much dairy.

      reply
  • aspclay

    i tried the 4 pack pills, could not tell i even had taken one at all… i want my 5 hour energy drinks back… now!!!
    these things do not work!!!!

    reply
  • it gives me tons of energy !
    raymond (verified purchase)

    tell us your thoughts about stacker 2. i have been taking it for about 4 days. just one in the morning. yes it gives me tons of energy, but remindes me of speed. or what i think it would be like. but, its doing what i wanted which is keeping me from getting hungry. it cheeper than red bull, but will it be addictive well see. this product i know will not burn fat unless you use it with excercis. but im very lean as it is and walk a lot each day.

    reply
  • it made me lose craving not fat !!
    ylolaour name (verified purchase)

    i started using rhis product two weeks ago it just made me lose the craving not the fat

    reply
  • stacker 2
    your nalol sme (verified purchase)

    its great i just started taking the stacker 2 and it gave me energy and less cravings. i recommend to those who are trying to lose the late eating crash

    reply
  • stacker 2
    your nadonnarachieleme (verified purchase)

    gave me a headache made me nauseated

    reply
  • it did work for me
    tina (verified purchase)

    i took stacker 2 many years ago. i believe it was in the 80’s and it gave me an incredible amount of energy and it was like it melted the fat away without diet and exercise. i swear by stackers 2. i couldn’t believe how it melted the fat away without even cutting out any of the food i normally eat and i had lost 90 pounds but once you stop with any diet pill you gain back the weight you lost and then some. don’t get me wrong it did work for me but to keep the weight off you must continue to take the diet pill no matter what one it is that you’re taking.

    reply
    • your name

      ya but you don’t always wana depend on a pill to make u loose weight , once u stop taking the pill u could start exercising more often or even on a simple duet such as fruits and veggies and if u love meat just watch how much your eating plus breads or anything along that line can lead to weight gain….?

      reply
  • new formula did nor worked for me !
    david baker (verified purchase)

    i used the original stacker 2 when it had the ephedrine and it was awesome !! lost 80+ lbs but when they changed the formula it just did not work for me anymore. now years later i have regained the weight and am still searching for something that works !!

    reply
    • joanadaur

      me too!!’m

      reply
  • stacker 2
    kimberly (verified purchase)

    stacker 2 may not burn fat alone but it definitely gives your workout a boost!

    reply
  • they gave me energy !
    veronica (verified purchase)

    i took two stacker 2 pills and they gave me energy but i got jittery and nauseated and i couldn’t sleep that night. i tried them again next day but only took about a 1/3 of a pill and i got better results.

    reply
  • hope this works for me
    your name (verified purchase)

    i just got some to day i’m gonna try them be cause i hear their its good energy boost. so hope it works for me

    reply
  • loved the product.
    mike (verified purchase)

    stacker works great for energy made it through a long day at work which usually drags on and on heart rate does go up a little but not bad as for the weight loss part not sure just started taking them today i took 1 after breakfest and 1 after lunch and no problems it delivers a big boost in energy

    reply
  • this works for me
    shawn williams (verified purchase)

    stacker work for me i have energy all day long i try others diet pills but i didnt have energy….for me i have to stick with stackers.

    reply
    • marisol

      i agree! i only take one pill in am and that’s it. it gives me energy to work out and no side effects!

      reply
  • good energy booster in small amounts
    keith (verified purchase)

    i use stacker 2 everyday. i only take 1/3rd of a cap,you dont need to take a lot to make it work.small amounts will give you a boost without making you feel sick, your weight loss will come from diet and exercise not from pills.

    reply
  • product is not good for my health
    donna davis (verified purchase)

    i been takin stackers2 for 1 week i felt like my heart was gonna bust my back hurts my stomac hurts my leggs feels like there jelly im so exculsted all i wanta do is sleep im soo sick i wanna die that i cant stand the pain im going to the er tommorow and get help i may end up sueing for this pain n suffring i have kids that i need to focuse on i trusted this diet pill all it did was put me in pain ill never take3 this trash agean thanks for this sevier pain i hope they take this junk off marketmarche

    reply
    • isaac

      not for you you may have allergic reaction works great for me

      reply
      • jerrod walker

        you took 3 stacker 2 capsules at once? jw cause the only way i get a boost is by taking 1 every couple of hrs

        reply
    • your name

      tou should not take three at once and you can but not sue,you should know he risk and need to realize being smart and not overdosing is wise!

      reply
    • your name

      i’m sorry, but i guarantee you……you being that sick had nothing to do with stackers.

      reply
    • jason

      well energy pills ain’t for u then

      reply
  • product caused sickness
    joseph hyde (verified purchase)

    well stacker made me feel really bad and i got sick and my heart had pain in it so i dont know whats going on but i dont like it im not buy stacker no more bye

    reply
  • i was going to die
    cindy shippy (verified purchase)

    i thought i was going to die after taking stacker 3. they shouldnt be sold. my whole boby inside and out shook .

    reply
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