Douglas Laboratories - Calcium Citrate (250 mg.) - Elemental Mineral to Support The Strength and Structure of Bones and Teeth - 250 Tablets
$22.05
Price Per Absorbed Gram: 1.0080
#22 of 82 products in Calcium
| Top 5 Products | Compound | Price Per Absorbed Gram |
| BulkSupplements.com Calcium Gluconate Powder - Calcium Supplement - Calcium Powder - Bone Supplements - Gluconate Powder - Gluconate Calcium Supplement - Calcium without Vitamin D (250 Grams - 8.8 oz) | Calcium Gluconate | 0.2792 |
| Tums Ultra Strength 1000 Assorted Berries Chewable Tablets 160 Count | Calcium Carbonate | 0.3325 |
| 21st Century Calcium 500 mg Plus D3 Tablets, 400 Count | Oyster Shell Calcium | 0.3330 |
| Oyster Shell Calcium Tablets, 500mg, 1000ct | Oyster Shell Calcium | 0.3871 |
| Kirkland Signature Calcium Citrate 500mg (500 Tablets) | Calcium Citrate | 0.4011 |
#7 of 15 products in Calcium Citrate
Douglas Laboratories
Bone Health: Calcium citrate provides a highly beneficial source of dietary calcium that assists in the maintenance of healthy bone structure and function.* Essential Mineral: In normal aging, there is a gradual loss of bone. It is generally accepted that dietary calcium throughout life supports bone health.* Vitamins/Minerals/Amino Acids: Dietary supplement formulated to provide beneficial support in filling important nutrient gaps.* Our uncompromising operational practices at our state-of-the-art manufacturing facilities surpass GMP standards and manufacturing regulations. All of our products are GMO-free. For 65 years, Douglas Laboratories has been dedicated to meeting the needs of healthcare professionals. As a globally recognized leader in the development of innovative, science-based nutritional supplements, we strive to help healthcare professionals and their patients push their potential to live healthier, today and in the future.*
Calcium Citrate may be less likely to cause kidney stones
Calcium citrate is less likely to form stones because it is absorbed in the stomach and intestines, rather than the kidneys. This means that there is less calcium in the urine, which reduces the risk of stone formation. Additionally, Calcium citrate may also help to reduce the risk of kidney stones by binding to oxalate in the gut. It's also important to note that taking a high dose of calcium citrate or any other form of calcium may increase the risk of kidney stones, therefore it's important to take the recommended dosage.
Calcium is Important for the Heart, Muscles, and Nerves
In the heart, calcium is needed for the proper contraction and relaxation of the heart muscle. It also plays a crucial role in the electrical impulses that control the heartbeat. If there is an imbalance of calcium in the body, it can lead to muscle cramps and spasms, which can be painful. A deficiency of calcium can lead to nerve problems such as tingling, numbness, and muscle weakness. Calcium is involved in the transmission of electrical impulses along nerve fibers.
Calcium and Iron Can Interact and Negatively Affect the Absorption of Each Other
This is because calcium and iron (and Zinc) compete for the same absorption sites in the gut, and when there is a high level of calcium present, it can reduce the amount of iron that is absorbed. To minimize the interaction between calcium and iron, it is recommended to take them at different times of the day, with a gap of 2-3 hours in between. It's also recommended to take iron supplements on an empty stomach, as food can also interfere with iron absorption
Recommended Dietary Allowance
The Recommended Dietary Allowance (RDA) is “the amount of an essential nutrient, as a vitamin or mineral, that has been established by the Food and Nutrition Board of the National Academy of Sciences as adequate to meet the average daily nutritional needs of most healthy persons according to age group and sex.” –- dictionary.com
We used the RDA for calcium from the National Institutes of Health – Office of Dietary Supplements listed below.
| Age | Male Daily |
| 0-6 months | 200 mg |
| 7-12 months | 260 mg |
| 1-3 years | 700 mg |
| 4-8 years | 1,000 mg |
| 9-18 years | 1,300 mg |
| 19-50 years | 1,000 mg |
| 51-70 years | 1,000 mg |
| 71+ years | 1,200 mg |
| Age | Female Daily |
| 0-6 months | 200 mg |
| 7-12 months | 260 mg |
| 1-3 years | 700 mg |
| 4-8 years | 1,000 mg |
| 9-18 years | 1,300 mg |
| 19-50 years | 1,000 mg |
| 51+ years | 1,200 mg |
| Life State | Age | RDA |
| Pregnancy | 13-19 years | 1,300 mg |
| Pregnancy | 20+ years | 1,000 mg |
| Breast-Feeding | 13-19 years | 1,300 mg |
| Breast-Feeding | 20+ years | 1,000 mg |