Nah, for me, that wasn't sufficient. I get at least 10 hours a week of full sun on my whole arms and legs and sometimes my torso if I decide to bike shirtless; more sun than most people, and still, I was vitamin D deficient.
Did you wear sunscreen? I'm pretty sure it blocks vitamin d creation, which really makes me wonder how any of my GFs Ive had ever got any since they wear it religiously in hopes of keeping youthful skin.
