


Serious Mass by Optimum Nutrition
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Serious Mass by Optimum NutritionOptimum Nutrition Serious Mass: the ULTIMATE in weight gain formulas. Optimum Nutrition Serious Mass supplies you with the tools you need to pack on the pounds and develop the physique you've always wanted. Super high in carbohydrates and Calories Optimum Nutrition Serious Mass is designed to help trainers with fast metabolisms obtain the calories they need to gain weight. 1,250 Calories per serve. 50g of blended protein. Over 250g of Carbohydrates
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Exchange/Return Notes
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4.8 ★★★★★
Based on 133 reviews
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Product Reviews
★★★★★ 5
Not bad
The cherry tastes too much like cherry cough syrup. The grape fruit and apple aren't bad. For a no sugar candy for diabetics when you're having a craving, not bad.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 12, 2021
★★★★★ 1
They Call These Sour?
Expensive and not sour at all
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Reviewed in the United States on September 26, 2025
★★★★★ 3
I Wouldn’t Call Them Sour
Did I enjoy this candy? Absolutely. Did it meet my expectations? No.
I have anxiety. I’ve heard about the technique of using a sour candy to distract from an anxiety attack. Well, I also have insulin resistance so I have been looking for a sugar-free sour candy which it turns out is a tall order.
Unfortunately, I was disappointed when I tasted these because they really don’t taste sour. While I enjoy the flavors (especially grapefruit) they aren’t sour. A big bummer.
I do think the nutrition for this candy is awesome, though. They have a good amount of fiber and are made with xylitol which is great for oral health.
Overall, I think they are pricey and not necessarily worth the cost considering they are not anything special outside of the nutritional values. Bummer!
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Reviewed in the United States on February 25, 2025
★★★★★ 4
They are good
They were really good with nice flavor just not sour
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Reviewed in the United States on September 20, 2023
★★★★★ 5
Tasty
Yummy.
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Reviewed in the United States on May 7, 2026