/ / King Arthur Baking Company, Gluten Free Muffin Mix, 16 oz (454 g)

King Arthur Baking Company, Gluten Free Muffin Mix, 16 oz (454 g)

Contains cane sugar

This gluten-free muffin mix includes whole grain brown rice flour and provides at least 10 g of whole grain per serving. It has 15 g of added sugar per serving and contains natural flavor and xanthan gum.

Seed-oil freeNo artificial dyesNo artificial flavorsNo synthetic preservativesNo added nitritesNon-GMOCertified gluten-freeDairy-freeContains corn
$6.25 16 oz (454 g) · lowest price at Vitacost
Price and stock checked Oct 30, 2026
Key nutrition facts
130caloriesPer serving · 4 Tbsp mix (38g)
Protein
1g▼
Fiber
3g
Added sugar
15g▼
Sodium
290mg▼
Saturated fat
0g
▲ raises the score · ▼ lowers it · From the product label
Ingredients: Cane sugar, whole grain brown rice flour, potato starch, tapioca starch, cellulose, baking powder (baking soda, calcium acid pyrophosphate, monocalcium phosphate), salt, natural flavor, cornstarch, vitamin and mineral blend [calcium carbonate, niacinamide (vitamin B3), reduced iron, thiamin hydrochloride (vitamin B1), riboflavin (vitamin B2)], xanthan gum, nutmeg
On Open Food FactsNOVA 4Ultra-processed foodTheir grades, for reference; not part of our score. Data: Open Food Facts (ODbL).
35 / 100
Poor Scored automatically
Weighted as grain productsHigh confidence · Scored on 9 of 11 inputs, 3 claims verified
Nutrition · counts 35%13
Ingredients · counts 20%66
Processing · counts 15%30
Sourcing · counts 15%35
Transparency · counts 15%50
Why it scores 35
Nutrition 13 · Compared with other grain foods: more sodium (290 mg), less protein (1 g); 15 g added sugar per 4 Tbsp mix
Ingredients 66 · Cane sugar, 1st ingredient (added sugar, −20); Added phosphates (additive, −10); Natural flavours (additive, −4)
Processing 30 · Mix includes refined starches, cane sugar, natural flavor and xanthan gum
Sourcing 35 · Cane sugar and refined starches are listed; ingredient origins aren't stated
Transparency 50 · Full ingredient list, but natural flavor is unspecified
15 g added sugar
Contains natural flavor
Evidence behind the Ingredients deductions
Strong evidence−20 for cane sugar
Varies by additive−14 for added phosphates, natural flavours
Scored Oct 24, 2026 · Scoring guide v3.1 · Updated Oct 20, 2026 · See what changed

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Ingredients
Cane sugar Whole grain brown rice flour Potato starch Tapioca starch Cellulose Baking powder (baking soda, calcium acid pyrophosphate, monocalcium phosphate) Salt Natural flavor Cornstarch Vitamin and mineral blend [calcium carbonate Niacinamide (vitamin B3) Reduced iron Thiamin hydrochloride (vitamin B1) Riboflavin (vitamin B2)] Xanthan gum Nutmeg
16 ingredients 6 to watch1 to avoid
Sourcing

Origin not disclosed on the product page.

Additives4 additives · 1 moderate risk
Added phosphates (E339–E343, E450–E452)StabiliserModerate risk
Absorbed more readily than natural phosphorus; high intakes are linked to kidney and heart risks, and EFSA set a limit in 2019.
Natural flavoursFlavouringLimited risk
An undisclosed mix of extracts and carriers; the label doesn’t say what’s in it or how it was made.
Added sugarSugarLimited risk
Added sugar; the WHO and the US Dietary Guidelines advise keeping added sugars under 10% of daily calories.
Xanthan gum (E415)ThickenerNo risk
Made by fermentation; EFSA re-confirmed its safety in 2017, though large amounts can cause bloating.
Matched from the ingredient list. Risk levels summarise findings from EFSA, the FDA, IARC and published studies; they explain a concern, not a diagnosis.

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