NOW Foods Calcium & Magnesium 100 Tablets

NOW® Calcium & Magnesium combines these two essential minerals in a classic high-potency 2:1 ratio, delivering 1,000 mg of calcium and 500 mg of magnesium per serving. The two work together to maintain several critical physiological processes: both are necessary for normal neural, muscular and blood-vessel function and for proper bodily-fluid balance, and together they support the formation and maintenance of a healthy skeleton.* Sourced from multiple calcium and magnesium forms (including ascorbate) and certified Kosher and Vegan, it is a well-rounded, everyday bone and neuromuscular support.*

About the key ingredients

• Calcium (elemental, from Carbonate, Citrate and Ascorbate) – 1,000 mg: A high-potency 1,000 mg dose from three calcium forms, supplying the body's most abundant mineral to support a healthy skeleton and normal muscle, nerve and blood-vessel function.* Learn more about Calcium from the NIH.
• Magnesium (elemental, from Oxide, Citrate and Ascorbate) – 500 mg: Calcium's partner mineral at half the dose, supporting bone mineralization, enzyme activity and healthy neuromuscular function.* Learn more about Magnesium from the NIH.
• Other ingredients: NOW® uses simple, functional excipients — typically a plant-based hypromellose (cellulose) capsule or a light tablet coating plus flow agents such as stearic acid and silicon dioxide — with no unnecessary fillers, artificial colors or preservatives.

Who it's for

This bone-support formula is a good fit for adults who want to cover two essential bone minerals in one supplement — particularly older adults, postmenopausal women, and anyone whose diet is light on dairy or leafy greens and who wants to support long-term skeletal health.* It also suits people looking for combined muscle, nerve and bone support, since calcium and magnesium are both needed for normal neuromuscular function.* Choose the capsule, tablet or added-nutrient version that best matches your preferences and dietary needs.*

Suggested use

Take 2 tablets daily. Can be taken in divided doses. Store in a cool, dry place after opening.

Quality & certifications

• Family Owned Since 1968
• GMP Quality Assured
• Made in the USA
• Kosher
• Vegan

Frequently asked questions

Why take calcium and magnesium together?
Calcium and magnesium are partner minerals that work together in the body. Both are needed for normal muscle, nerve and blood-vessel function and for building and maintaining a healthy skeleton, and magnesium helps regulate how the body handles calcium.* Supplying them in one formula is a convenient way to support bone and neuromuscular health.*

What does a 2:1 ratio mean?
It means the formula provides twice as much calcium as magnesium — 1,000 mg calcium to 500 mg magnesium — a traditional, balanced ratio many people use for general bone and neuromuscular support.* Both minerals are needed for a healthy skeleton and for normal muscle, nerve and blood-vessel function.*

When is the best time to take it?
Many people split the dose and take it with food, and some prefer an evening serving. Taking calcium in divided amounts through the day can support absorption. Follow the serving size on the label or your healthcare provider's guidance, and take it a few hours apart from any medications.

Is this suitable for my diet?
Check the Supplement Facts panel for product-specific certifications — several products in this family are Kosher, Vegan or Non-GMO and are made without gluten, soy, dairy and egg. The exact capsule or coating and any bovine-gelatin content are listed in the Other Ingredients line.

Cautions & interactions

Calcium and magnesium can both reduce the absorption of certain medications — including thyroid medicine, some antibiotics (such as tetracyclines and quinolones), bisphosphonates and iron — so take this product a few hours apart from them and check with your doctor. Very high calcium intake is not appropriate for everyone; talk to your physician before use if you have a history of kidney stones, high blood calcium or kidney disease, and if you take digoxin or thiazide diuretics. Larger magnesium doses may loosen stools. Keep out of reach of children and consult your physician if pregnant, nursing or taking medication.

Allergen information: Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.

Caution: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children.

⚠ California Proposition 65 Warning: California Residents Prop 65 WARNING: This product contains a substance known to the State of California to cause birth defects or other reproductive harm.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.