For a holiday snack with a strict under-100-kcal limit, compare calories per whole bar: MaxiNutrition lists 94 kcal and 7.5g protein for its Better Choice bar, while YuBi lists 99 kcal and 10g protein for its 35g Speculoos bar. If a larger snack fits your plans, PhD lists 129–131 kcal and 10g protein for reviewed Smart Bar Half Size flavours. Check the exact flavour’s ingredients as well as its nutrition panel before packing it.
For a travel day or excursion, start with the calories in one complete bar. MaxiNutrition lists 94 kcal for Better Choice and YuBi lists 99 kcal for its 35g Speculoos bar; their stated protein amounts are 7.5g and 10g respectively.
YuBi’s 35g Speculoos bar lists 10g protein at 99 kcal. PhD lists 10g protein at 129–131 kcal for reviewed 32g Smart Bar Half Size flavours. Compare the exact flavour if the difference matters to your snack allowance.
YuBi describes its bars as plant based and gluten free, but its Speculoos ingredient list includes soya and oats. The reviewed MaxiNutrition bar lists milk, wheat, hazelnuts and soya. Check the current pack for the flavour you intend to take.
Choose a portion that fits the role of your snack, then compare whole-bar calories, protein and ingredients rather than relying on a low-sugar description.
| Priority | What to check | Your needs |
|---|---|---|
| Whole-bar calories | Read kcal per complete bar and its weight; check whether a nutrition panel instead gives values per 100g. MaxiNutrition lists 94 kcal per Better Choice bar, and the YuBi Speculoos listing gives 99 kcal per 35g bar. | For a small snack on a day out, I want the whole bar—not just a suggested portion—to fit the allowance I have planned. |
| Protein and portion | Compare protein grams alongside kcal and bar size. PhD lists 10g protein at 129–131 kcal for reviewed 32g Half Size flavours, versus 21–22g protein at 245–250 kcal for reviewed 64g Smart Bar flavours. | Sometimes I want 10g protein in a smaller bar; on another day, a larger snack may suit me. The whole-bar figures help me decide which portion I actually want. |
| Sweeteners | Check the ingredient list and any polyols shown on the nutrition panel. Reviewed YuBi, MaxiNutrition and PhD products list polyols or polyol sweeteners; the NHS notes that some polyols can have a laxative effect in large amounts. | Before a long journey, I would rather try an unfamiliar flavour at home than pack several bars without knowing how I find them. |
| Dietary suitability | Read the ingredients and allergen declaration for the exact flavour. The reviewed YuBi Speculoos listing includes soya and gluten-free oats; MaxiNutrition lists milk, wheat, hazelnuts and soya. | If I avoid a particular ingredient, I need the current pack information, not just a plant-based or gluten-free range description. |
A low-sugar description does not tell you how many calories are in the whole bar. For example, PhD’s reviewed full-size Smart Bar flavours list 245–250 kcal per 64g bar alongside 21–22g protein.
Decide what size of snack you want, then compare kcal, weight and protein for one complete bar.
Some reviewed bars contain polyols. The NHS notes that certain polyols can have a laxative effect if consumed in large amounts, a practical consideration on a long journey.
Read the exact flavour’s ingredients and any pack warning, and try an unfamiliar bar before departure.
Plant-based or gluten-free wording does not mean a bar is free from other ingredients you may need to avoid. The reviewed YuBi Speculoos listing includes soya and oats, while the reviewed MaxiNutrition bar lists milk, wheat, hazelnuts and soya.
Check the current ingredients and allergen declaration for the exact flavour and pack you are buying.
These examples illustrate different bar sizes and protein amounts; the figures apply to the named products and flavours, not every bar from each brand.
Smart Bar Half Size offers a smaller portion than the reviewed full-size Smart Bar flavours.
A small plant-based bar to consider when comparing whole-bar calories.
Better Choice is a small-format bar for comparing calories per portion.
A full-size protein-bar range to compare when a larger snack is the aim.
A dessert-style option when flavour and the stated protein amount matter more than choosing the smallest bar.
Its High-Protein Bar is a different choice from a small, calorie-led snack bar.
These Grenade packs are options for a larger protein-bar snack, rather than the under-100-kcal bars discussed above. Compare the calorie figure and ingredients for the exact flavour before deciding what to pack.
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This 12-bar pack suits someone planning several larger snacks rather than choosing a small under-100-kcal bar. Check the whole-bar nutrition and ingredients for Double Chocolate before taking it on a journey.
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If you want a caramel-flavoured bar for several days away, this pack contains 12 x 50g bars. Compare its whole-bar kcal with your planned snack allowance and read the exact flavour’s ingredients.
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This Peanut Butter variant comes as 12 x 50g bars for a larger snack choice. Check its whole-bar calories and the current allergen declaration, particularly if peanut ingredients affect what you can pack.
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These 60g bars come in a four-pack and are a larger-format choice than the small bars in this article. Read the whole-bar kcal and ingredients before choosing them for a calorie-limited travel snack.
Start with kcal per whole bar, then check its weight and protein amount. MaxiNutrition lists 94 kcal and 7.5g protein for Better Choice, while the reviewed YuBi 35g Speculoos bar lists 99 kcal and 10g protein. Those figures describe particular products, not a calorie threshold that every protein bar must meet.
Check their sweeteners before packing several. Some reviewed bars contain polyols such as maltitol, sorbitol or xylitol, and the NHS says certain polyols can have a laxative effect if consumed in large amounts. Try an unfamiliar flavour before travelling and read any warning on its pack.
Check the rules for your airline, airports and destination before travelling. GOV.UK advises that food items and powders can obstruct X-ray images, so a bag may need a manual check; placing them in hold luggage can reduce delays.
Read the current ingredients and allergen declaration for the exact flavour and pack. The reviewed YuBi Speculoos listing includes soya and gluten-free oats, while MaxiNutrition’s Better Choice ingredients include milk, wheat, hazelnuts and soya. A range-level dietary claim does not replace that pack check.