Vitamin D deficiency on Fitday...
 

Just a note for the folks who like to track down their daily nutrition table on the "reports page" on Fitday and prefer to get stuff in through diet mainly... Vitamin D has been strangely omitted or shown way too low in the three most powerful Vitamin D sources there is: Salmon, Mackerel and Tuna (don't know about other fat fish, haven't checked.)

In 1 oz, boneless, raw Salmon, Fitday claims: 0% RDA
It should actually read: 73% RDA

In 1 oz, boneless, raw Mackerel, Fitday claims: 8% RDA
It should actually read: 73% RDA
(canned mackerel, on the other hand, is shown correctly)

In 1 oz of canned Tuna in oil, Fitday claims: 17% RDA
It should actually read: 33% RDA


(My figures are the official ones from the Swedish "Statens Livsmedelsverk"/Governmental Food Ministry/Board yadda yadda (can't find the proper translation for it, but you get the picture.)

Just thought I'd point that out, since there are such few sources of vitamin D in our daily foodlings (hence the enrichments of it in milk etc.) Vit D is necessary for our body to sufficiently absorb calcium and fosfates. Too much vit D on the other hand, is not healthy and it stores up in the fat depots of the body.

Cheers,
gil

Ps. Maybe this has already been covered before and I'm just kicking in an open door - if that's the case, I appologize for wasting your time. :) Also, I'm sorry for crossposting this (Nutrition & Supplements resp. Fitday.com How to's...) since I thought it might be relevant for both subforums/threads.

Just a note about vitamin D: A 10-minute walk outside in the sun (without sunscreen) will give you all the vitamin D your body requires. I don't recommend prolonged skin exposure to the sun, but 10 minutes isn't long enough to cause damage. :)

Sun? Go out? Exercise?! Ewww....
:D

Yes, of course you're right. However we who live up north, don't always have the chance to get enough exposure during the winter. Also, it get's harder for the body to create vitamin D in the skin, the older we get. Good point, though.