Optimum Nutrition Marshmallow Protein Bar, 10 x 65 g

Nice, sweet and filling. Good on the go.

Have been using these for a while and they make a great change from regular protein bars. They are basically the protein version of a rice crispy cake. Taste much better than most protein bars and are also filling after workouts. Would recomend them over many other bars .

First, the positives - what these bars have going for them is the very decent size, which makes for a filling post-workout or between-meals healthier snack. They're substantial, have a nice chewy (rather than crunchy) texture thanks to the crispie-style mix, and they pack a very decent 20g of protein per bar. In terms of taste, I just found them OK, and they're not my favourites in the Optimum Nutrition range. They certainly look the part, like drizzled flapjacks. And they are extremely sweet, and that sweetness does taste a little artificial. There's a definite 'health bar' feel to this where the other varieties manage to taste more 'treat', although that could just be personal taste (after all, marshmallow isn't the most subtle or natural flavour). You can't fault the bar on nutritional content, though, like all the ON products - they're solid, and make for a great addition to a managed, high-protein diet. Top marks for content as always - and if you like marshmallow, they could be right up your street (though personally I'll stick to the Chocolate Sea Salt Crunch).

Nice bars. So chewy that your jaw gets a good workout too

Love the marshmallow taste. I go to gym and used to always find it hard to get some sort of snack afterwards to keep me going till mealtime plus something with protein in. Then a friend recommended this product. Love it! The only downside the amount of sugar. As much as I like the taste, at times it is a tad too sweet for me. If you are not into sugary bars, then it's not the product for you, but otherwise, it's a great protein bar and keeps one going after a good workout session. Would definitely recommend.

Taste isn't very nice, consistency also like tile grout. Not nice at all... have tried other flavours and still taste like perfume. Personally not for me.

Good flavour and not hard work to eat. Also it’s big enough to put behind a car tyre to stop it rolling when your handbrake isn’t working

These are so good and remind me of rice crispy treats but these are high protein and high fibre. I’ve tried the marshmallow and the brownie flavour but I always come back to the marshmallow. Highly recommended

I paid for it but I can't bring myself to eat them. Not recommended at all.