Over-the-counter multivitamins are available in drop form for infants. Beginning in the first two months of life, a minimum of 200 IU of vitamin D per day promotes optimal baby development, Greer tells WebMD. This should continue throughout childhood and adolescence.
A kidney stone, also known as a renal calculus or nephrolith, is a solid piece of material which is formed in the kidneys from minerals in urine.Kidney stones typically leave the body in the urine stream, and a small stone may pass without causing symptoms.rinary stones are typically classified by their location in the kidney (nephrolithiasis), ureter (ureterolithiasis), or bladder (cystolithiasis), or by their chemical composition (calcium-containing, struvite, uric acid, or other compounds).
There are four main types of stones: Calcium oxalate: The most common type of kidney stone which is created when calcium combines with oxalate in the urine. Uric acid: This is another common type of kidney stone. Struvite: These stones are less common and are caused by infections in the upper urinary tract. Cystine: These stones are rare and tend to run in families. What are Cystine Stones? What are the symptoms of a stone? Some kidney stones are as small as a grain of sand. Others are as large as a pebble. A few are as large as a golf ball!