Yellow squash and patty pan squash have many health benefits, including:
Vitamins and minerals
Yellow squash is high in vitamins A, B6, and C, as well as folate, magnesium, fiber, riboflavin, phosphorus, and potassium. Patty pan squash contains potassium, vitamin C, and manganese. 
Antioxidants
Yellow squash contains antioxidants like vitamin C and beta-carotene. Patty pan squash contains antioxidants like lutein and zeaxanthin. 
Low in calories
Yellow squash is low in calories and has a high water percentage, making it a good choice for low-carb or keto diets. 
Anti-inflammatory properties
Yellow squash has anti-inflammatory properties that may support heart health, vision, immune function, digestion, and cognitive health. 
May help with weight loss
Yellow squash's fiber and high water content can help you feel full without adding too many calories. 
FODMAP-free
Patty pan squash is FODMAP-free, making it a good option for people with irritable bowel syndrome (IBS).