PhD Smart Bar vs Grenade Protein Bar
PhD Smart Bar vs Grenade Protein Bar — two supermarket staples, but the labels tell very different stories.
PhD
PhD Smart Bar
34g protein / 100g
Winner
Grenade
Grenade Protein Bar
36g protein / 100g
Representative products shown — the top efficiency scorer in each line. Tap a card for the full product page.
Our verdict
Grenade wins clearly
This one isn't close: Grenade scores 84/A against the Smart Bar's 71/B. Per 100g that's 36g vs 34g protein — but the real gap is calories: 344 vs 384 per 100g, meaning Grenade gives you more protein for 40 fewer calories.
The Smart Bar isn't a bad bar — Clean Score 92, decent macros — it's just outgunned by the category leader on every line that matters. At similar shelf prices, there's no reason to pick it over Grenade on nutrition.
PhD's case is flavour loyalty and availability. If Cookies & Cream is your bar, enjoy it — but know what the trade costs.
Head to head
Per serving, from UK label data.
| PhD Smart Bar | Grenade Protein Bar | |
|---|---|---|
| Protein | 21.8g ✓ | 21.6g |
| Calories | 246 | 206 ✓ |
| Sugar / 100g | 3.1g | 2.5g ✓ |
| Fat / 100g | 13.0g | 13.0g |
| Clean Score | 92 | 95 ✓ |
Who should buy which
Buy Smart Bar if…
It's your flavour and you don't want to switch. Still a solid bar — just not the best numbers in the aisle.
Buy Grenade if…
You want the best macros of the mainstream bars: most protein per calorie, Grade A, huge flavour range.
Frequently asked
Is Grenade better than PhD Smart Bar?
On the label, yes: 84/A vs 71/B on our efficiency score, more protein and 40 fewer calories per 100g.
How much protein is in a Grenade bar vs Smart Bar?
Per bar: Grenade 21.6g (60g bar), Smart Bar 21.8g (64g bar) — similar, but Grenade delivers it for fewer calories.
Compare them yourself, live
Run PhD Smart Bar against Grenade Protein Bar in our interactive compare tool — with your own product picks.
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