how to increase vitamin d levels quickly
Fresh fish aren't the only way to boost your vitamin D intake; you can get vitamin D from a can, too. Canned tuna fish and canned sardines both contain vitamin D, and are usually less expensive than fresh fish. Plus, a longer shelf life makes the canned products easy to stock up on and use at your leisure.
However, if you don't spend enough time in the sun or if your body has trouble absorbing the vitamin, you may not get enough. Here are 12 ways to ensure adequate intake. Sunlight. Sunlight spurs the body to make vitamin D. But because of the skin-cancer risk, there isn't an official recommendation to catch some rays.