NOW Foods Cal-Mag DK 180 Capsules

NOW® Cal-Mag DK Caps is a complete bone formula that combines the two essential bone minerals with the two vitamins that help put them to work. Each serving supplies 266 mg of calcium and 133 mg of magnesium along with vitamin D3 and vitamin K2.* Vitamin D3, a fat-soluble vitamin, plays a critical role in bone metabolism and in the intestinal absorption of calcium and magnesium, while vitamin K2 further supports bone health through its role in healthy bone calcification.* It is a smart, well-balanced choice for people who want their calcium and magnesium paired with D and K.*

About the key ingredients

• Calcium (elemental, from Calcium Citrate) – 266 mg: A well-absorbed calcium citrate that provides a foundational bone mineral, also important for healthy muscle and nerve function.* Learn more about Calcium from the NIH.
• Magnesium (elemental, from Magnesium Oxide) – 133 mg: Calcium's partner mineral, supporting bone mineralization and healthy muscle and nerve function.* Learn more about Magnesium from the NIH.
• Vitamin D3 (as Cholecalciferol) – 8.3 mcg: A fat-soluble vitamin shown to play a critical role in bone metabolism and in the intestinal absorption of calcium and magnesium.* Learn more about Vitamin D from the NIH.
• Vitamin K2 (as Menaquinone) – 30 mcg: A nutrient that supports bone health through its participation in healthy bone calcification, helping direct calcium to the skeleton.* Learn more about Vitamin K from the NIH.
• Other ingredients: Provided in a bovine-gelatin capsule (BSE-free) with stearic acid, magnesium stearate and silicon dioxide; made without wheat, gluten, soy, milk, egg, fish and shellfish.

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 capsules twice daily with food. Store in a cool, dry place after opening.

Quality & certifications

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

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.*

Why add vitamins D and K to a cal-mag?
Vitamin D3 supports the intestinal absorption of both calcium and magnesium and plays a critical role in bone metabolism, while vitamin K2 supports healthy bone calcification.* Together they help the body absorb and properly use the minerals, which is why this 'DK' formula pairs all four nutrients.*

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 or shellfish 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 Proposition 65 WARNING: Consuming this product can expose you to chemicals, including lead, which are known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov/food.

*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.