Is Optimum Nutrition Gold Standard 100% Whey Protein Vegetarian?

This product may or may not be vegetarian as it lists 1 ingredient that could derive from meat or fish depending on the source. We recommend contacting the manufacturer directly to confirm.

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Why it's a maybe for vegetarian

natural and artificial flavor

natural and artificial flavor

Dietitian note

Natural flavors can include both animal and plant sources. If the label does not provide a source, we recommend calling the manufacturer.

Note by Rhyan Geiger, RDN

Every flagged ingredient, explained

Notes and swaps for all 1 flagged ingredients, plus vegetarian products to buy instead.

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Ingredients

Protein Blend (whey Protein Isolate, Whey Protein Concentrate, Hydrolyzed Whey Protein), Cocoa Powder (processed With Alkali), Sunflower And/or Soy Lecithin, Natural And Artificial Flavor, Acesulfame Potassium. Contains Milk and Soy.

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What is a Vegetarian diet?

A vegetarian diet eliminates meat, poultry, and fish but typically includes dairy, eggs, and plant-based foods. People adopt it for ethical, environmental, or health reasons. This diet emphasizes fruits, vegetables, legumes, grains, nuts, and seeds as key nutrient sources. Vegetarians often get protein from eggs, tofu, beans, and lentils. It can offer health benefits such as reduced risk of heart disease and improved weight management, though attention should be given to nutrients like iron, zinc, and vitamin B12. With proper planning, a vegetarian diet can be both nutritionally complete and sustainable.

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Often paired with Vegetarian

VeganNo

No. This product is not vegan as it lists 4 ingredients that derive from animals and 1 ingredient that could could derive from animals depending on the source.

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Dairy FreeNo

No. This product is not dairy free as it lists 4 ingredients that contain dairy.

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