Fig. 1

Testing whether health and nutritional literacy is a mediator of the relationships between knowledge and sun exposure and between attitude and sun exposure. Sun1: I like sunlight. Sun2: I use sunhat when exposed to sunlight. Sun3: I use sunscreen products containing SPF ≥ 15 when exposed to sunlight. Sun4: I like outdoor activities. Sun5: Usually I spend most of my time outdoors. Sun6: The time I expose myself to sunlight is enough. Sun7: I have ever heard about vitamin D. Sun8: Vitamin D is good for bone health. Sun9: Vitamin D supports calcium absorption. Sun10: Vitamin D can be supplemented by sunlight exposure. Sun11: The minimum time needed for sunlight exposure is 30 min if we want our body to develop a sufficient amount of vitamin D