Carbohydrates & sports fuel

Energy & sports bars

Bars made mostly of carbs, often from oats, fruit or rice. Easy fuel for the muscles before or during long training.

11 products from US online stores, sorted by what 40 g of carbohydrates costs – not by the price per pack.

$1.60Lowest cost
per 40 g carbohydrates

Prices checked Nov 1, 2026, US
No paid placements

What does 40 g mean?

carbohydrates per serving in most of the products we checked: 14–37 gcarbohydrates per serving in most of the products we checked

40 g is a fixed amount to compare by: half of the 11 products we checked have up to 20 g per serving, the other half more.
There’s no daily amount for sports fuel – how much people use depends on how long and how hard they exercise.

We compare by 40 g only so products line up – it’s not a recommendation. Not medical advice.

Where products miss quality points

How the 11 products score

Very good 90+: 1
Good 75+: 10
Fair 60+: 0
Low under 60: 0

have no seal from an independent testing program: 10 of 11have no seal from an independent testing program10 of 30 testing points, for GMP

The full 30 testing points need an independent test. Every supplement sold in the US is made under the FDA’s GMP rules – the maker checks its own products, which gives 10 points. A seal from a testing program like NSF, USP or Informed Choice means a lab outside the company checks that what’s inside matches the label. Most brands don’t take part. That doesn’t make a product bad – without a seal, a clean product still gets up to 80.

We find seals on the label and in NSF’s public lists. USP and Informed Choice don’t let us search their lists automatically, so a seal that’s only in their lists can be missing. How the score works

Good to know

Fact: 213%more per 40 g for the most expensive product than for the cheapest.

How we checked: one-time price for each size in the store’s US online shop, before sales tax and shipping, without subscriptions or coupons. Prices change often, so check the store before you buy. More on how we check

The amount we compare by only makes products comparable – it is not a dosage recommendation. Not medical advice.

How we calculate

Cost per dose = price ÷ (servings × amount per serving) × comparison amount. Example: $119.99 for 74 servings with 24 g of protein each is 1,776 g of protein. $119.99 ÷ 1,776 g × 30 g = $2.03 per 30 g of protein.

Found a mistake or a product we should add? Email us

Energy & sports bars

What does 40 g mean?

Where products miss quality points

Pack size

SNAK, Energy Bar, Blueberry Oat, 12 Bars

Go Bar, Endurance Bar, Original, 12 Bars

MacroBar, Prolonged Power, Banana + Almond Butter, 12 Bars

MacroBar, Everlasting Joy, Coconut, Almond Butter & Chocolate Chips, 4 Bars

MacroBar, Sunny Uplift, Cherries + Berries, 12 Bars

MacroBar Mini, Peanut Butter Chocolate Chip, 8 Bars

Caffeinated Energy Bars, Birthday Cake, 16 Bars

Caffeinated Energy Bars, Chocolate Chip Banana Bread, 16 Bars

MacroBar Mini, Coconut + Almond Butter + Chocolate Chip, 8 Bars

Combat Sport Bar, Chocolate Chip Cookie Dough, 12 Bars

Caffeinated Energy Bars, S'mores, 16 Bars

Good to know