Milk Thistle 560 mg By Windmill Natural Vitamins Overview & Drug Interactions

Calcium is a vital nutrient found in various foods such as dairy products, certain vegetables, and many fortified items. Over 99% of the body's calcium is stored in the bones and teeth, predominantly as hydroxyapatite. The remaining calcium circulates in the blood, extracellular fluid, muscles, and other tissues, where it is essential for processes like nerve signaling, muscle contraction, vascular activities, glandular secretion, and maintaining cell membrane and capillary permeability. It also plays critical roles in enzyme reactions, respiration, kidney function, and blood clotting, and is involved in neurotransmitter and hormone release, amino acid uptake, vitamin B12 absorption, and gastrin secretion. Calcium balance changes with age: it is positive during periods of growth, stable in adulthood, and tends to become negative in older age. Calcium loss occurs through feces, urine, sweat, and shedding skin cells. In women, reduced estrogen levels decrease calcium absorption and retention, increase bone turnover, and lead to lower bone mass. Calcium supplements come in various forms, including citrate and carbonate, which differ mainly in their calcium content and absorption rates. Calcium citrate is easily absorbed and can be taken without food, making it suitable for older adults or those with low stomach acid. In contrast, calcium carbonate, which contains a higher percentage of calcium, is best absorbed when taken with meals.

Milk thistle (Silybum marianum) is a plant belonging to the aster family (Asteraceae). It is native to the Mediterranean region and is widely cultivated in many parts of the world. The plant is known for its milk-white veins on the leaves, which gives it its name. Milk thistle has a long history of use in traditional medicine, and is extremely popular as a dietary supplement, making it one of the most well-known plants in the world. It is purported to have liver-protectant effects and has been used to treat liver disorders such as hepatitis and cirrhosis. It has also been used to treat gallbladder problems and high cholesterol. While there are a number of compounds in milk thistle, one of the active constituents, silymarin, is thought to be responsible for many of its effects, and dietary supplements often report using a standardized amount (generally 70% to 80% silymarin in extracts).