Major Pharmaceuticals Oyster Shell Calcium with Vitamin D 500MG+D, 300 Count
$11.48
Price Per Absorbed Gram: 0.5102
#9 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 |
#3 of 7 products in Oyster Shell Calcium
Major Pharmaceuticals
Oyster Shell Calcium with Vitamin D 500MG+D , 300 tablets
Calcium May Lower Body Weight and Reduce Obesity
Studies have found that people who consume a diet high in calcium tend to have a lower body weight and body mass index (BMI) compared to those who consume a diet low in calcium. Some research suggests that calcium may help to reduce weight gain and obesity by increasing fat breakdown and reducing the formation of fat cells. Additionally, calcium-rich foods, such as dairy products, tend to be more satiating, which may help to reduce overall calorie intake and contribute to weight loss.
Calcium is Necessary for Maintaining Strong Bones
When the body does not get enough calcium from the diet, it begins to take it from the bones, which can lead to weak and brittle bones over time. It's important to note that, as we age, the body's ability to absorb calcium decreases, making it more difficult to maintain strong bones. This is why older adults and postmenopausal women, in particular, need to be especially mindful of their calcium intake.
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 |