Is Optimum Nutrition Serious Mass Vanilla Flavor Soy Free?

No. This product is not soy free as it lists 2 ingredients that contain soy.

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Why it's not soy free

soy
soy lecithin

soy

Dietitian note

Soy protein isolate is a concentrated form of plant-based protein extracted from defatted soybean meal and commonly used to boost protein content in processed foods and supplements. It retains allergenic soy proteins that can provoke IgE-mediated responses in sensitive individuals. Avoidance is essential on a soy-free diet to prevent adverse allergic reactions and inadvertent exposure to soy allergens.

Note by Vanessa Vargas, RDN, LDN

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Ingredients

Vitamin A (as vitamin A acetate), Vitamin C (as sodium ascorbate), Vitamin E (as dl-alpha tocopheryl acetate), Thiamin (as thiamin hydrochloride), Riboflavin, Niacin (as niacinamide), Vitamin B6 (as pyridoxine hydrochloride), Folate (as folic acid), Vitamin B12 (as cyanocobalamin), Biotin (as d-biotin), Pantothenic Acid (as d-calcium pantothenate), Calcium (as calcium carbonate, calcium phosphate), Iron (as ferrous fumarate), Iodine (as potassium iodide), Magnesium (as magnesium phosphate), Zinc (as zinc oxide), Copper (as copper gluconate), Manganese (as manganese sulfate), Sodium, Potassium, Creatine Monohydrate. OTHER INGREDIENTS: Maltodextrin, Whey Protein Concentrate, Natural and Artificial Flavor, Sunflower and/or Soy Lecithin, Acesulfame Potassium, Sucralose. CONTAINS: MILK AND SOY.

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Often paired with Soy Free

Gluten FreeMaybe

This product may or may not be gluten free as it lists 1 ingredient that could contain gluten depending on the source. We recommend contacting the manufacturer directly to confirm.

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Dairy FreeNo

No. This product is not dairy free as it lists 2 ingredients that contain dairy.

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