Optimum Nutrition Serious Mass is a great choice for anyone looking to gain weight, build muscle, or increase overall calorie intake. The Chocolate flavor mixes smoothly—especially if you use a blender—and has a rich, dessert-like taste without being overly sweet. Each serving delivers a very high amount of calories, protein, and carbs, which makes it ideal for people with fast metabolisms or those who struggle to eat enough throughout the day. It also includes added vitamins, minerals, and creatine for extra support. The bag is large and lasts a good amount of time depending on how much you use. The powder is heavy, so mixing by hand can be a bit difficult, but blending solves that problem easily. Overall, Serious Mass is effective for healthy weight gain and muscle-building goals. If you need a calorie boost and don’t mind a thick shake, it’s a solid and reliable product. Read more

Good Read more

It’s fake and how come I can’t return it Read more

سكر بالكامل Read more

Product is near to expiry, pls be cautious. Read more

増量にはこれ。 同じブランドの他のプロテインも使用していましたが筋肉を大きく作るにはやはりこの高カロリーバージョンですね 混ざりづらいのでミキサーを使うといいですね。 Read more

muy bien Read more

منتج ممتازة وخدمة ممتازة من البائع ظهر الفرق خلال 3 أيام مع التمرين بس للتوضيح اهم حاجة الاستمرار Read more

I was just about making my second order and thought it would be nice to write a review. I'd never been a 'review person' and that's why even though i bought this product in 2014, i never had the time to review properly until now. I've decided to 'give back' too and not be so selfish thus, make it a habit from now. What better way to start off than with the products i've used and appreciated so much? *IF YOU DON'T WANT TO READ EVERYTHING, THIS'S JUST ABOUT MY CONCLUSION TO 1st TIME BUYERS OUT THERE* BASICALLY ; 1. Be sure to workout intensely (esp. your tummy area) to prevent belly fat (cause trust me, it is real) like the plague 2. If you find the mixture too sweet for your liking you could always dilute it with extra milk, some water, or anything other thing that works for you instead of complaining & whining about it and trying to force it down 3. Mixing the chocolate & vanilla flavor (with milk) was something i wish i'd figured out sooner. I couldn't have asked for a better taste. 4. If you're a hard gainer, you can be assured that this product WILL do something for you (if you take it properly and workout well it would do a whole lot more than that). I would know because i'm a serious hard gainer myself and wouldn't even say i 'used it that properly' at all but, in the end i did see noticeable gains and got weight gain compliments for the first time in all my life. I'm sure if you eat well, train really hard, and take this alongside you'd be just more than fine! 5. It has some kind of "very sweet after-taste" though, which lasts for some time. (could be up to 12hrs or more) even if you keep eating things in-between or after you take this. What happens is soon as your mouth becomes empty for some time you start to "feel the taste all over again". I find it very annoying lol but it's the ONLY PROBLEM I HAVE with this product. I'm ok with any other thing. 6. Remember to check with your doctor before taking this (if you have any health issues or are on medication or any other supplements). My "testimony"...(if you're interested) .. I'd never gained above 5 lbs in such a short time my entire life! I weighed 42kg (92 lbs) before i started my weight gain journey in September 2014 and by the time my serious mass got finished (i visited a hospital in January 2015), checked my weight and it said "50kg (110lbs)" I'd never gone past 45kg my entire life! Even when i received those "you've put on weight compliments" when i was younger, highest i prolly was that time was like 43kg. Because of this i thought there was a mistake in the scales they were using at the hospital two year ago. because at that time i wasn't even taking the serious mass anymore cos it had finished about a month or so ago and i'd stopped working out for about a month or so as well. I actually asked the doctor "um,are.. you really sure it's 50?..didn't it just say that because of my clothes or something?" (and i'm someone who'd never asked a doctor "are you sure" ever in my life!) ... I mean i knew i gained some weight all right while i was still 'on track' with this, but then i knew i'd 'stopped my journey' and wasn't even doing anything anymore so i had definitely lost weight again. That's why i was so surprised! I mean, i had a mirror in my house and all ok?, but i guess because i was constantly looking at myself almost every hour on my gain journey i never actually realised that i had gained! It really was 50kg. I had gained 7kg in 2 months!😇 (A HARD-GAINER) i want to stress on that again. LOL I found it really hard to believe so i had to check again during that week with a different scale (for some weird reason i didn't have a scale at home and always had to check outside of the house) lol i really wasn't serious. I checked and got the same measurement to my uttermost surprise. I didn't believe it (still) ... but then after some time i finally got over it & accepted it. That was when it hit me... "Oh, wow..does this mean i gained even more while i was still on the serious mass?" .."umm.. Huh? " And then it hit me again... "this is the first time i've reached 110lbs! ...omg..*my eyes filled with tears* About a year ago that was actually my dream.. to get to 110lbs, and now i'm here! What is this?? How did this even happen?" Well yeah, i WAS extremely confused for a long time. Trust me on that one. WELL ABOUT WORKOUTs; I used to do normal 'home exercises' and i never even went to the gym. I had a workout routine, but because i'm severely anaemic it was always extremely difficult for me to workout properly (and the way i REALLY wanted to). So i did basically some 'soft workouts'. I didn't have dumbbells at the time, so all i did was basically "no dumbbell home exercises" or "workouts without weight" more like it. This is why i was so surprised i gained. I realised that if i'd used weights i would've gained even more. I did squats mainly, (different types of squats) and then some donkey kicks and tummy workouts usually. I normally followed "fitnessblender" videos on youtube, and then some other fitnessmodels' videos that i found. *****I bought 2 chocolates 1 vanilla the first time i ordered this product (yes, it was a huge risk i took but this is just how much i believed in this product even before i tried it for myself). I fell in love with it and knew right from the times i researched about it that it was the RIGHT one for me. That was what i needed tbh, and i just knew. I don't know how but oh well, it did pay off in the end so i guess i was just very lucky***** I never really experienced any form of 'super strength' or felt 'so strong' to do my workouts or anything whenever i used this DURING workout, (and i would not blame it on this because i already had serious low energy problems from my anemic condition), and plus it even says to use it mainly as "between meals, post-workout & before bed" in the description (which i did, but also used it as a pre- and during-workout shake as well) so um, because of that i'm not gonna say it didn't do much or help me with my workouts at all. I used it as a pre-and during workout shake mainly because it had creatine and i thought it would help me workout better and easier (But maybe i didn't experience that much of a change in strength/performance because the creatine content is really small? idk) but then i do know it helped me in all sorts of other ways nonetheless. I RECOVERED FROM MY WORKOUTS REALLY FAST and that was an incredible one. FOR THE TASTES; THE CHOCOLATE; wasn't bad at all when mixed with milk. I used non-fat milk as they recommend, but then always added some extra cup or so of full cream milk after i got my serving (to dilute it a bit). This was good, i liked better the taste it gave me when i did that, but then the downside was that it increased the amount of the shake and so was always a bit harder to push down quickly. THE VANILLA; wasn't bad either. I actually grew more fond of that after sometime when i'd taken the 2 chocolate bags for so long. I liked the taste of that too, but again, it was also way too sweet for my liking when mixed with milk (esp the after-taste). so i'd always add some extra full cream milk/a little water to it to dilute that a bit as well after i'd reached the serving size. After a while, i started mixing both flavors together and IT WAS GOOD! (i only had a few cups of the chocolate left when i figured this out, so i couldn't do that for long, but then with the few days i did that, i never regretted)! I would take one cup of the chocolate flavor, one cup of the vanilla flavor, blend them together, adjust a little with some extra milk, and i'm all good! (I always said to myself "why didn't i think of this earlier?!" lol) In general i never tried any with just water but my brother did once and from the look of things, it's clear they both taste better with milk. I never tried mixing either with other solid stuff like peanut butter, oats & the like because i mostly used to blend them with other liquid nutrition shakes (and they always blended well) but i'll try mixing them with dry oats and some other solid stuff this time and see. I'll be sure to leave an update later! Anyway, to continue my "testimony"; In the beginning i couldn't eat any solid food the rest of the day after i took this in the morning. It filled me up more than a 3 square-meal ever would have so i was always worried i was going to end up relying on that and use that as my 'sole source of nutrition' the entire time. Good thing was.. after a while it SERIOUSLY 'OPENED UP MY STOMACH'' and i was able to eat more than i ever could have handled on my own usually. That made me very happy indeed I knew it was the work of the serious mass because that was by far the most caloric supplement i was taking. The other products i took alongside (more for medical conditions & clinical purposes)were ; Scandishake vanilla -580 calories Enshake chocolate- 600 calories (That was probably why i gained so much but i know the serious mass contributed greatly too!) Oh and, ABOUT THE BLOATING THING PEOPLE SAY.. What i'm gonna say is it is really true. And i realised it when i experienced it myself. (I already believed and was aware from what i'd read even before i bought the items, but i guess i just didn't think it would be that serious!) lol Yeah, the bloating is SERIOUS as well. I had read that you have to workout insanely if you didn't want to end up putting on ONLY FAT so i was already prepared for that. *Only i wasn't as prepared as i thought i was* lol But then to be honest.. with all my 'daily ab workouts' and the like.. i still did have a big tummy while on this mass gainer! lol I probably didn't workout as hard but all i know is i gained weight in the places where i wanted to gain all right, only it came with a lot of belly fat too! I didn't even care at the time though, cause at the time i was far too happy with the gains and knew i could workout later to reduce the belly fat. It was only funny because i'd always been a skinny girl, and i'd never seen my tummy so big (i was actually afraid at some point that it was going to stay that way and it would never go back to the way it was! lol). I mostly felt 'bloated' and i think it's because i wasn't used to having so much calories in my body. I felt so 'heavy' and 'so pregnant' all the time because i was always so full! lol it was a struggle. But i managed to pull through it. After some time of going off my weight gain journey i got my flat tummy back! :) I know what to do this time if i started my journey again so i doubt that would happen anymore! I will train harder than i did last time so i'm very well prepared i must say. So should you! 😊 I would say it was fun though! The whole experience was fun and exciting as i'd never had that much CHALLENGE thrown at... well my body..ever! I was new to working out and all these mass gainers and the like. I gradually grew from there over time.. and now i know so much more than i didn't (two years ago) about mass gainers, workout routines and the like. I'm still attached to serious mass (yes of course, the love is still there!) and i would keep on buying until i've reached the goal i've always wanted to reach. (which is around 60kg or 132 lbs. I weigh 40kg now, that's about 88lbs yeah, unfortunately.. i lost all that weight in the course of just 1 year and i'm 21 now (which means very much underweight since i'm only 5'3) which is why i'm getting myself more bags of this product)! Funny thing's, i'm not even in the United States or Canada or the UK. I'm not in a country where i could easily get this product when and if i want. But then i still manage, and do all i can to get it every time (If i told you how much trouble i go through and how much money it costs me every time, you would marvel!) The number of things i could buy with the amount i spend just trying to get 2 bags of serious mass down to where i am... it's ridiculous but oh well, when something's worth it you're never really bothered so this should tell you just how much useful this product is! Those of you who can just order it and get it the next day or two (and at this price with no other extra costs), be very lucky and make good use of it. (I'm not getting anything for this review just so you know, i do not know the company or haven't had any agreements to do this with whatsoever. I took time & wrote this review wholeheartedly just so future buyers would know what a great product this is just in case they were having any doubts) 😊 For hard gainers... i'll DEFINITELY recommend! Read more

very expensive as it has only 08 serving. Read more

Exceeded expectations, beautiful test, now the gains begin in-shaa-Allah Read more

La proteína es de muy buena calidad y precio Read more

I used chocolate flavored before and wanted to change the taste. It’s really good. Read more

I usually buy a chocolate flavor, so it’s the first time to taste a strawberry, And it was delicious Read more

جميل وكيف 14 يوم وصلني مبرد ممتاز Read more

One of my favorite supplement brands. The flavor is great, it mixes well, and it doesn’t upset my stomach. Really happy with it! Read more

Great Read more

Awesome product Read more

I bought the vanilla flavor and it’s one of the worse mass gainers I have drank, the after taste is very bad makes me gag. I have the full bottle and I can’t even return it Read more

Buy it Read more

Mon mari l'utilise pour le travail Car il n'a pas le temps de manger cela lui permet d'avoir des protéines nécessaire dans la journée agréable en goût pas lourd a boire et Tien bien au corps Read more

Good Read more

Perfecto pará subir masa muscular. Read more

I’ve been using this for a while and I’ve gained so much more weight in the gym. I is easy to mix with other flavours which has made drinking my shakes more enjoyable. Read more

This works wonders. I was 125lbs started this and I'm now 140lbs in 3 weeks and i didn't even take the suggested 2 scoops per serving twice a day. I went from an xs to a sml in clothing size. I did 1 scoop per serving only once per day. The taste is great, it blends out very smoothly. It’s the only protein powder i’ve tried and got such fast results. It’s worth the hype!!! It’s not hard to drink and doesn’t leave me with an off feeling in my stomach after consuming. I add 1 scoop protein powder, 1 ripe banana, 1 table spoon of peanut butter to 1/2 or 1 cup %100 creamed milk. Read more

انه جيد جدا Read more

La mejor de todas, llevo 10 años tomándola para coger volumen porque por mi constitución me cuesta mucho coger peso, y es la mas completa y de muy buena calidad no la cambio. Read more

Es perfecto para entrenar y efectifidad/calidad/precio. He visto reseñas de personas que lo critican por argumentar que la cantidad de proteina por dosis es inferior a otros productos. No es cierto. Llevo un año usándolo. Es ideal para personas que les cueste comer por que con poco estamos satisfechos. La suplementación vitamínica que incluye también es fabulosa, el gusto en cualquiera de su variedad es exquisita, fina, fina, no empalaga, se deshace perfecto. Recomendable 100% para entrenamiento de fuerza e hipertrofia. Read more

i bought it twice and it was soo nice and flaverly Read more

Works very well. Read more

I brought it for myself and it helps me to gain weight and build muscles. I gain 2 kg weight in just one week. I use it after doing gym and i found it very helpful for muscles recovery. Value for money and its vanilla flavours taste amazing😋 Higly recommended to all. Read more

The Optimum Nutrition Serious Mass Weight Gainer is a powerful supplement for those looking to gain weight and muscle. With 1,250 calories per serving and a blend of protein, creatine, and vitamins C and zinc for immune support, it's designed to fuel intense workouts and support recovery. The strawberry flavor is tasty and not overly sweet, and it mixes easily without clumps. This 6-pound tub provides a good value for those looking to boost their calorie intake. Perfect for those who struggle to gain weight or need a convenient way to pack in extra nutrition. Read more

شكرا لامازون Read more

Gout meilleur que certains concurants. Read more

I'm using this product from one week. It's amazing taste is good after using this i feel too much hungry. Really this product ia great to gain your muscles and also great to weight. Read more

Tastes great, a bit clumpy if you don't shake it enough or don't want/ have time to wait, I don't mind it as i like a bit of clumpy in my shake Read more

Super! J’adore le goût vanille! On dirait un vrai milkshake Read more

اعجبني فيه ان نتائجه مباشرة وما اعجبني انه مليان سكر وكرياتين Read more

Original product Read more

Strawberry is amazing, not sure why all the bad comments regarding the flavour..1scoop blended with 500ml sugar free oat milk and some ice, perfect lovely flavour.

Bad taste , bloating , gassy stomach not recommended at all

The best

:(

its working but slowly

I bought this product because of some reviews telling this product is orginal ... Please If you can't distinguish the original product from the fake, close your mouth.

I bought this mass gainer two months so I can gain weight and put on muscle mass. Let me tell you it worksssss! Over the two months I’ve been taking it I’ve noticed noticeable size gains across my entire body. Though one thing if you were to take this and not train with intensity you’ll gain fat but me since I train five days a week with high intensity per session this mass gainer works very well as my post workout shake and helped significantly to put on muscle mass as well.

منتج ممتاز

Disgusting taste, extremelly sweet, you have to dring a lot of water after it. And still you will feel sweet taste in your mouth for hours.

اصبت بحصى الكلى و قد كان هو السبب ولكن انا من لم يكن يشرب ما يكفي من الماء

Not good

Good

جيد

gained around 4kg to 5kg in less than a month

Thank you, I’ll use useful

It works and does help you gain weight. I didn't give it 5 stars because I didn't like the taste of the vanilla.

i used this product. but nothing improved.

Not sweet if you are someone who like tasty things though for me i don't use sugar so i prefer the taste cause before i was using other brand and i had to really dilute to reduce the sweetness, just received it today so lets see if it does what is written

Very good item

Highly recommended

No useitsexpired

Product is original. Chocolate flavour is just ok.I hope the result will be good.

This product is good it's working properly when it comes to gaining weight. But it cause erectile dysfunction. I noticed the time i started consuming this my morning wood is bit loose.

After reading great reviews about the protein, I had to try it. I never went above 60kg since almost 15 years. I took this seriously and was working out 5 times a week and eating well. I gained almost 4kg in 3 weeks. From 58.5 to 62.5. I still have doubts that my scale has an error because of the fast results. But I hit the gym and work intensively. I'll be on the road to 75kg by next year, maybe I'll reach it before if this product keeps doing what it's doing.

Like the test and good result

This product very good

Very bad

The delivered product had clearly been opened (or burst open) and had then been taped closedwhich is completely unacceptable.

Product not good , its don't give me muscles I wasted my money

Ok

Original product

رائع

Taste is good. And a lot of vitamins included

Its a good product. I took 5 kg On Serious. Before im78 kg and i gained 83.Most of the persons are reviewing only for the brand and taste of the product. Im ordered on more 5kg. Go with this product, its a good brand and some persons reviewing about this product its fake, not gained anything. But only one to control your food, maintain your workout plan, Keep good sleep, avoid jung foods. This is my review and i gained. ❤️❤️

Superb product and also asm service

Great results in one chaak. Be careful on the sugar content

Number one in terms of muscle building and secondly optimum nutrition added more creatine up to 3 grams,which gives a lot of energy and strength,I have been taking this product since three and half years, and I am not looking back. I will continue to take this product until it goes into extinct.

Good taste genuine products

Does the good.

Effective!!! Try it now!

Thank u so much

very good

Result is very good work well

perfect value for money

والله المنتج أشتريه على انو أوىچنل المنتج مو أورچنل م في اي شيئ يدل على إنو اصلي ولا في إستكر صحة السلامه

Superb😍😍

ليس كما اعتقد