Grace Period. Most lease contracts do not include a grace period to terminate the lease after the contract has been signed by both parties. However, most lease contracts stipulate a grace period that provides the tenant or renter a certain time frame to pay the rent. The grace period usually occurs after the day each rent payment is due.
Everyone agrees that anyone with a 25-hydroxyvitamin D level of less than 15 ng/mL or 37.5 nmol/L (depending on the units reported by a lab) needs more vitamin D. The U.S. National Institutes of Health notes that 25-OHD levels over 30 ng/mL are optimal, and that there is insufficient data to support recommendations for higher levels. The Vitamin D Council considers the ideal 25-OHD level to be between 40 ng/mL and 70 ng/mL.
Vitamin D is found in many foods, including fish, eggs, fortified milk, and cod liver oil. The sun also adds to the body's daily production of vitamin D, and as little as 10 minutes of exposure is thought to prevent deficiency. The term vitamin D refers to several different forms of this vitamin. Two forms are important in humans: vitamin D2, which is made by plants, and vitamin D3, which is made by human skin when exposed to sunlight. Foods may be fortified with vitamin D2 or D3.