NOW Foods Supplements, Calcium Citrate Powder, Highly Bioavailable Calcium, Supports Bone Health*, 8-Ounce

Customers find the calcium supplement highly effective, noting it dissolves well in room-temperature liquids and can be mixed into various drinks without altering taste. The product receives positive feedback for its ease of use, particularly for those who have difficulty swallowing pills, and its ability to increase serum calcium levels quickly. While some customers say it doesn't upset their stomach, others report nausea, and there are concerns about a chalky residue that can build up on teeth. Customers appreciate the large container size for the low price.