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We Ranked 8 UK Protein Bars By Sugar — Some Are Basically Chocolate Bars

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No 8 — SAFE BUY — Quest Bar — barely a quarter teaspoon

We checked the labels on eight of Britain's favourite gym-shelf bars, so you don't have to. Some are proper protein hits. Others are chocolate bars in Lycra. Starting with the safest: Quest Bar. Around one gram of sugar in a sixty-gram bar — that's barely a quarter of a teaspoon. Genuinely one of the leaner options on the shelf.

No 7 — X-Tone — a quarter teaspoon too

X-Tone Protein Bar comes in at 2.9 grams of sugar per hundred grams — in a typical thirty-five gram bar, that's about one gram, again just a quarter of a teaspoon. Another genuinely low-sugar option for the gym bag.

No 6 — Multipower — still under half a teaspoon

Multipower's 42% Protein Bar runs around five grams of sugar per hundred grams. In a typical thirty-five gram bar that's under two grams — call it four-tenths of a teaspoon. Still comfortably on the low side.

No 5 — SiS — half a teaspoon a bar

SiS Protein Bar is 3.4 grams of sugar per hundred grams. In a typical sixty-gram bar that works out at around two grams — about half a teaspoon. Built more for training fuel than treat.

No 4 — Grenade — just over a teaspoon

Grenade Carb Killa typically carries around four and a half grams of sugar per sixty-gram bar — just over a teaspoon. Still low for something that tastes like a chocolate bar, but the gap starts to close here.

No 3 — Trek — two and a half teaspoons

Trek Protein Flapjack is oat-based, and those oats come with dates — typically around ten grams of sugar in a fifty-gram bar. That's two and a half teaspoons, most of it natural, but your body doesn't check the source.

No 2 — 4Energy — nearly three teaspoons

4Energy Protein Bar is 23.6 grams of sugar per hundred grams — one of the highest on the shelf. In a typical forty-five gram bar that's around ten and a half grams, nearly three teaspoons. This is drifting well past snack-bar territory.

No 1 — THE WORST — Fulfil — over four teaspoons a bar

And the worst offender: Fulfil Vitamin & Protein Bar. A typical fifty-five gram bar carries around seventeen grams of sugar — over four teaspoons. Chocolate-coated, genuinely tasty, and sugar-wise, closer to a chocolate bar than a protein shake.