This is another waste of a nutrient partitioning product. I tried this once 2 years ago and had zero results and I recently tried it again with zero results.
I love all of Animals other products, this simply just does not work for me.
I gave it a 5 for effectiveness because the caffeine in the M-stak was noticeable but aside from that I did not lean out at all and there were no strength gains to make a note of.
Ill stick with regular Animal Stak if I want to see some real gains in size and muscle.

So i finished my first can of animal m-stak about 3 weeks ago and Im pretty happy with the results. I was sort of skepitcal at first because of some bad reviews and all the confusion as to what this supplement actually does but in the end I did see some solid gains.

Effectiveness- The red stimulant pill is pretty strong although I did build up a tolerance to it by the end of the 3 week cycle. have to be careful about when I took or I would be rolling around in bed till 3 in the morning. Notcied some decent gains in size. Muscles seemed to feel fuller and a lot of my heavy compund movements like bench press and box squat went up a good amount.

Value- This is where all aniaml products seem to lose their appeal. I bought it online for 29 bucks so it wasnt too bad but still could always be cheaper.

Sides- I did notice around day 4 that my sex drive was significantly down.Ive heard of others reporting this side as well. It did get better though around the third week.

Overall- I think this product is definetly worth a try. You can put some decent size expecially when bulking.

Hi Everybody This would have to be my 4th can of Animal M-Stak before i have made my review on it so I can honestly give you a fair "Heads Up" on the effects this product holds on your body.

This product is an "all round" nutrient partitioner and in comparison to its competition in the field (Asteroid Stack by USP Labs) truly is an astonishingly good value product. M-Stak works by keeping your body in a positive nitrogen balance and shuttling all the extra food you smash each day into your muscles and illeviates the issue of gaining unnecessary fat along the way.

Here is a general Outline of the Products dosage and the effects that are noticeable along the way including any side effects and other thoughts I feel are necessary to state.

DOSAGE - 1 pack a day for 3 weeks. Best taken on an empty stomach prior to training or between meals on non training days. There is a Red Capsule in the pack of tablets that is an "Energy Complex" which does help you with your training but please note that it may effect your sleep if you train in the evenings as adding this to your pre workout supplement can be a little to much.

Also note that on my current M-Stak course I have been using Animal Stak ( Natural version ) Which by the animalpak website suggests taking M stak between meals and then taking the Animal Stak prior to workout ( I will do a review on the new Stak after a second can as its hard to justify its effectiveness from all fields as it may fall justice to the "Placebo effect .

EFFECTIVENESS - Around about the day 4 Mark you begin to notice that your body seems to look alot "Fuller" and your appetite begins to sky rocket. This effect has been noticed every single time I have taken the M-Stak. A long with your muscles being alot fuller comes a fairly noticeable strength and stamina increase. These effects are quite usefull to have especially if you have taken a bit of time of the Gym and your stamina and strength are abit lower then they were originally. I have found this to really put the "edge" back into your workouts whether your stuck on a plateau or have been sick etc. It is quite important to eat a fair amount on this stuff and although its not necessary i can guarantee you the appetite you begin to get around the 1 week mark will have you scavenging your cupboard.

People may think to themselves reading a few reviews on this stating - "Offcourse your gonna be alot fuller if it just makes you eat more, why cant you eat more without it and get the same effects?". That statement can be true to some point however you have to build up to that amount of food intake to keep your metabolism steady. This product seems to basically put your metabolism into overdrive and truly help overcome any sticking point.

In one course I ate like a pig Keeping my main 5 meals the same but had alot of extra snacks here and there. I gained around 3kilos (6.6 lbs) in the three week course. And stayed Fairly lean however afterwards i did loose abit of definition.

The other two courses I ate normally and Found it had more effect on my Endurance and General Well-Being as It seems to snuff out any catabolic effects you receive. Muscle soreness is lowered, quality of sleep improves and sense of "Clarity" throughout the day ( Mainly due to better quality sleep I'm assuming ).

So Overall
-Muscle Fullness/Denseness
-Improved endurance
-Improved Strength
-Improved Quality of Sleep
-Increased appetite
-Decreased Delayed onset muscle soreness (DOMS)
-General sence of well being
-Has Pre-workout Energy Complex
-3 week straight course Per can.

Hello everyone this is my first review on SupplementReviews.com and I am very excited there is such a website for the fitness community! A bit of a background I am an investment banker and finance nerd who rediscovered fitness after I tore my ACL and ended my soccer career my senior year of high school. I do personal training on the side and actually double majored in Finance and Kinesiology!

I want to say that I have gone through over 3 cycles of Animal M-Stack in my lifting career and here are the results of each time.
**I started serious lifting when I was 19 and was 6' 1" 165 at 14% bodyfat**
1st time results: Summer going into my Sophomore Year of college. I was taking the original No Xplode, Animal M-Stak, and generic GNC creatine. Because I was relatively new to hardcore lifting, I was able to put on 10 pounds between June and July. My body fat was still at 14%. My bench press increased by 25 pounds and my squat increased by 35 lbs.

2nd time results: January of my final year of college. I was taking Jack3d, Animal M-Stak, Animal Stak, and Gaspari Size-On. My stats at the start were 6' 1" 185 and by the end of the month I was 6' 1" 200 lbs. This was a 15 pound gain but my body fat went from 11% up to 13%. Also, this was my first true BULK and I was a bit bloated up by the end of the month. I however finally broke the 300 lb barrier on bench press up from 270 lbs. Strength gains were still amazing even though I had been seriously powerlifting for a little less than two years at this point.

3rd time: This past February of 2012. My stats before were 6' 1" 210" and my body fat was at 10%. I stacked M Stak with Kre-Alkalyn 1500, Cellucor C4, and Animal Pak. I really tried to intake a ton of calories and was a regular at Subway getting double meat Oven-roasted Chicken breasts. I have been following the great Mike O' Hearn's powerbodybuilding routines incorporating high rep volumizing bodybuilding lifts with low rep powerlifting. I always incorporate Olympic lifting into my routines so I maintain my explosion so I can train my clients. By the end my stats were 6'1" 220" with 12% body fat. My bench press reached an all time high of 340, my dead lift is now up to 510 lbs, and my squat is mid 400s.

My conclusion about M-Stak:
Universal Nutrition's M-Stak is a great muscle builder. In fact it is my FAVORITE muscle building supplement. I always stacked M-Stack with creatine and would use this product when I was bulking up. This is a GREAT product for powerlifters looking to build strength.

M-Stak contains:
-Natural Test Complex composed of Tribulus Extract Complex which does increase your intensity and drive in the gym.
-Growth Hormone Complex which you can feel after the first week when your muscles are feeling large and you truly feel like you are growing!
-Vasodilator Complex composed of arginine which is a basic of most pre-workout supplements. Arginine is what helps your body increase natural Nitrix Oxide production and helps pump nutrients to your muscles.
-Aromatase Inhibitors, DHT Blockers, Cortisol Inhibitors all to make sure you body does not stop producing natural test and to ensure you do not lose your strength and muscle gains after you finish.
-Liver detoxifiers to ensure the Growth Hormone Complex and Natural Test Boosting Complex does not damage your liver.
-Great energy boosting complex a.k.a THE RED PILL

The only BAD thing is the 7 pills you have to take once a day. However, you get used to this very quickly.

I purchased mine for around $28 for 21 packs and I feel this is a great value considering you are putting on around 3-6 pounds of lean muscle.

I really think this product should be a staple for anyone looking to BULK and recommend always stacking this product with a creatine, a pre-workout, and a multi.

Enjoy,
GodofSerbia1

My experience with M STAK was great! Ill get the negative sides out of the way, I had the worst insomnia ever while taking this. The energy complex (red pill) is perfectly dosed and gives you very pure energy. It doesn't feel like there is too much caffeine and gives you solid energy, almost a wired feeling. I felt like a beast in the gym and destroyed the weights. A drawback with the product is you only get 21 packs for around 25 bucks, so the price really isnt right. These packs are supposed to be non hormonal so I am assuming that it consists of digestive enzymes and increases nutrient uptake. I really am not sure what the pills in the pack do but it seemed to work great thanks to the red pill. I will probably try this product again in the future and all in all it was very effective and gave me some great workouts

I took this product my Senior year of high school at the age of 17. I was having a difficult time gaining mass and wanted to put on the extra pounds without venturing in to something that would offset my hormones. M-Stack provides a comprehensive nutrient repartitioning supplement at an affordable price (if purchased online). My gains were not massive, but a reasonable and extremely clean 4 lbs. There was a one percent increase in bodyfat due to increase in calorie intake while maintaining the same amount of cardio. Strength gains were within reason. 5-8lb max out increases on bench, squat, deadlift. I also appreciate the way in which the ingredients are broken down on the label, which allowed me to thoroughly research every ingredient before ingestion. This product produces what it advertises. Also I got hungry as hell.

Original weight: 153
After-cycle: 157

Bodyfat: 11%
after: 12%

Extremely good gaining product. Put on 3kg while taking it for 3 weeks. Also gave me noticeable strength gains I highly recommend it. I have heard of people not being able to sleep while on it... If so just remove the red pill and all is good!

So today I will do doing a review on Universal M-Stak. This is a product that is supposed to be for the “hard gainers”, for those who have trouble putting on weight and making gains in the gym. This product utilizes ecdysterone and methoxyisoflavone which are supposed to help with protein synthesis, and has some other goodies in it that are supposed to help keep you anabolic.


Stim Pill – 9/10

This I decided to give its own mini paragraph, just because I have seen way to many questions pertaining to this. Yes there is a stim pill in M Stak, its red, and no you don’t have to take it all the time. On off days I just tossed the pill back into the container to use on days when I’m sluggish. I gave the stim pill a 9/10 because IMO that little red pill is better than a lot of preworkouts out there. It has about 200mg of caffeine in along with theobromine and theophylline in it. Theobromine is commonly found in chocolate, and tea, diff from caffeine but produces a similar effect. Theophyline, also quite structurally similar to caffeine, and just like theobromine will fill you with energy. These three ingredients pack a powerful punch that def helped me get through my workouts .


Strength – 7/10

I saw strength gains in all my major lifts. I went up 10lbs in flat bench, 5lbs in incline and 10 in decline. I saw increases in my deadlifts and squats as well. No PH or gear worthy results, but results none the less. I didn’t rate this higher because I was taking All American EFX Kre-Alkalyn at the time, and ON’s Casein. I don’t think that the Casein really made me stronger but it could have been the Kre-Alk or the extra drive I had in the gym that was the cause of my strength gains.


Appetite – 5/10

So I know some people rave about how this made you hungrier. This really didn’t affect my appetite at all. I tried taking the pills pre workout, and post workout, nothing helped increase my appetite. I put on 5 lbs while on this, and I can say with confidence that was because I ate more not because of an appetite increase from taking this.
Alpha Dog Feeling – 10/10
Yeaaaaa I felt like a boss in the gym.


Value – 6/10

This is an expensive product. You will find it around 30ish bucks, prob more with taxes and shipping. That’s a good bit to spend on a product that will only last you 21 days.


Overall – 7/10

Overall I would say this is a pretty good product. I saw some strength gains and felt like I was Jay Cutler every time I started lifting. I don’t think this helped me put on weight, and idk about the legitimacy of how they say this will help with protein synthesis, but I was happy with the results that I did get. Other than the price this is a winner in my books. If you have the money to shell out, I would def recommend this.
(I would have rated this higher if not for the price).

so 3 weeks ago i purchased 100$ worth of stuff from different sites paid 27$ on buildingbrawn.com (which i got my stuff inside of 3 days) was happy to see that it all arrived i wanted to try this first along with Uni-Liver and see what happens well i did the 3 weeks just like it says 1 pack for 3 weeks and absolutely nothing not a mood swing, no Muscle Gains, no insomnia, no fat burning, no alpha dog feeling absolutely nothing.

maybe its just me but im thinking that the people that have pros to this product are having some sort of placebo effect or just actually doing better in the gym by them self.

value: 0 why? 27$ for s^&* its still s^&* even if it was 1$ id still give it a 0

effectiveness: refer to first paragraph

time wasted on this product: 3 weeks

Theres a lot of contusion on this product so ill try to elaborate as much as possible.

Intro: This product is meant for weight/strength gains. Its not a T Booster or anything of that nature.

Strength: 7/10
This was the best part of the product, i constantly increased my numbers on this. Yes, i was running the BP when i took this but so was my brother and percentage wise i was passing him a lot quicker.(he wasnt taking this) Check my old log for numbers etc.

Weight Gain: 7/10
I gained about 7lb on this, but keep in mind my training and excess calories also contributed.

"Fullness": 8/10
I hate this term, but it defintely applys here i looked pumped 24/7 on this i dont know why i just did.

Appetite: 8/10
This really depends on when you take it imo, ill get into that later. This defintly made me hungry, in addition the fact that you think all your food will be better "absorbed" makes you want to eat a *** ton.

Alpha Male Feeling: 10/10
Never really expereced this before, i felt like i was the ***, ready to *** somebody up anytime or Max Out on deads.

PWO: 7/10
This has a lot of PWO ingredients, and they help.Energy is there,pump is there,focus is great.

Recovery: 7/10
I wasnt as sore, but its not a major thing to note.

Dosing: A bunch of confusion on this, do i shove them up my ass, or down my urethra???
I got the most out of it post workout,but that doesnt mean you pop your red stim pill post, just take it pre. I feel the appetite increase way more when i took it post. Off days take it before your biggest meal.

Final Thoughts: This isnt a PH dont expect huge gains, but it helps. IF youre going to take this up your calories and your intensity in the gym. Why did i give it a maybe you ask? Well, ive gotten the same exact results from upping my calories/fat intake.(AKA GOMAD) If have extra money laying around and want to experiment id say go for it, if not youre fine.

Hopefully this clears up peoples confusion.