is that enough time to have my Vitamin D levels drop?
on July 24, 2014 at 02:10 AM
Evolutionarily, we get sun in the summer, and we also store fat in the summer in preparation for the winter, where we burn off our fat stores.
on July 24, 2014 at 02:09 AM
I didn't say that. If you have the right conditions for burning your fat stores, yes, you'll release whatever's in them, including Vitamin D.
on July 24, 2014 at 01:19 AM
Later in the day your body can not synthesize vitamin D. UV is
attenuated by many orders of magnitude by the atmosphere, if the sun is
at a shallow angle, it will be attenuated to zero. You have to be out in
the middle of the day, in summer. Time of day is far more important
on July 24, 2014 at 12:59 AM
I hope so! I just think human need way more Vitamin D than 400 iu
on July 23, 2014 at 06:09 PM
3 to 4 cans of tuna per week? You're good then, see here:
As you can see each 171g can provides 404 IU of Vitamin D (about 101% of the RDA). No need to stress, you're doing fine.
on July 23, 2014 at 04:31 PM
I eat tuna...but about 3 to 4 cans a week maybe. And I'll usually run later in the day...I feel like i'm getting no sunlight. Plus darker skin needs more. I think being outside for 15 mins isn't actually a lot
on July 23, 2014 at 04:27 PM
If you run for half an hour outside, I don't think you have much to worry about, specially if you regularly eat any food with vitamin D (like fish). It's also very cloudy and rainy where I live as well, so I feel your pain.
on July 23, 2014 at 04:16 PM
no...I'm just working a lot and it's been cloudy and crappy weather so I don't go out. I run for 28 mins a day but I don't think that;s enough.
on July 23, 2014 at 04:15 PM
So, we don't release fat in the summer? I don't understand the body science. It just happens...I do go outside, but it's probably 15 to 30 mins and I have tan skin. That's certainly not enough time. Just cause of work and such I haven't been going outside as much. Plus it's been raining for a few weeks so I don't go outside.
on July 23, 2014 at 04:01 PM
Do you live in a cave?
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on July 23, 2014 at 09:39 AM
Yes, it depends on your body's need for Vitamin D... Although we do store some fat soluable vitamins in out fat stores, we can only get to them if we're releasing the fat, such as in the winter.
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