Are the Prosperity Twister Fries suitable for vegetarians? December 26, 2024 06:03 Updated Twister fries contain garlic and onion seasoning powder. Allergens are wheat and soybean. Food sensitivities include gluten. Related articles Are McDonald’s® French Fries suitable for vegetarians? What is in the Pineapple Pie? Are the Prosperity Burgers® spicy? Frequently Asked Questions for Baby Shark Bouncy Castle Does McDonald’s Fries contain beef extract?