Sisu Sisu - Calcium & Magnesium 1:1, 300 caps
Sisu Calcium & Magnesium 1:1 - Essential to those who have a limited intake of Calcium rich foods, or to those who are lactose intolerant, and is easy to assimilate for those who have reduced stomach acid. Sisu Calcium Magnesium with Vitamin D is formulated with Calcium Citrate, which is a highly soluble form of Calcium. Combined with Magnesium and Vitamin D, this superior formulation provides higher bio-availability and absorption for maximum benefits. Essential for protection against osteoporosis and maintenance of healthy teeth and gums, and also beneficial in strengthening the cardiovascular system and in lowering blood pressure, as well as reducing cholesterol.

Price
Regular Canadian retail price: $29.98 CAD. Price Vault members pay below retail on this product. Member pricing is private and shown after a free opt-in, with no membership fee, no minimum order and no subscription.
Currently out of stock. Free shipping across Canada on orders over $89, flat $9.95 under that. 30 days to request a return, with return shipping paid by the customer. Ships from Victoria, BC.
Why people keep reordering it
- Highly absorbable forms
- Chelated forms your body takes up, instead of oxide that mostly passes through.
- Calm and recovery
- Supports muscle relaxation, sleep quality and everyday stress resilience.
- Gentle on digestion
- Formulated to skip the laxative effect of cheaper magnesium.
Best suited to: avoids dairy and eats little else with calcium, wants to split calcium into small doses, buying for a long stretch at low cost.
What the research supports
Two capsules give 200 mg of calcium as citrate and 200 mg of magnesium as oxide, in a 1 to 1 ratio. The bottle lasts five months.
Bone studies use 500 to 1,200 mg of calcium a day.
- Bone density (evidence: moderate, from randomized controlled trial, meta-analysis)
- Calcium works with vitamin D to slow the mineral loss that thins bone over time. The effect is clearest in people whose usual diet falls short on calcium.
Read the literature: Bone density on PubMed.
Is it right for you
Worth it if
- avoids dairy and eats little else with calcium
- Calcium citrate is the form that absorbs without stomach acid, so 200 mg a day lands whether or not you take it with a meal.
- wants to split calcium into small doses
- At 100 mg per capsule you can spread intake across the day, which suits calcium since absorption efficiency drops above roughly 500 mg at once.
- buying for a long stretch at low cost
- 300 capsules is five months at the label's two a day, which is why the per-day cost here is low.
Look elsewhere if
- anyone buying this for the magnesium
- magnesium oxide is absorbed in the low single digits by percentage. Bisglycinate or citrate at 200 mg elemental delivers far more of what you swallow.
- someone relying on this for vitamin D
- 200 IU is a trace. A standalone D3 at 1,000 to 2,000 IU, in drops or a softgel, is the sensible way to cover it.
- someone told to take 500 mg or more of calcium
- reaching that here means five or more capsules a day and 500 mg of magnesium oxide with it, which most people will find loosens the bowel. A higher-dose calcium citrate tablet is cleaner.
What to expect
Nothing perceptible. Calcium and vitamin D work on bone maintenance over years, not weeks, and there is no sensation attached. The one thing you may notice is looser stools from 200 mg of magnesium oxide, which usually settles or can be managed by taking one capsule twice a day instead of two together.
How it compares
- Compared with a calcium carbonate tablet
- Citrate absorbs without gastric acid and does not need to be taken with a meal, which carbonate does, and it is less likely to cause gas and constipation. The tradeoff: Citrate is bulkier per milligram of calcium, which is why you are swallowing capsules at 100 mg each rather than one large tablet at 500 mg.
Product details
- Medicinal ingredients
- Vitamin D3 (cholecalciferol), Calcium (citrate), Magnesium (oxide)
- Ingredient form
- caps
- Servings per container
- 300
- Suggested use
- Take 2 capsules daily with food or as directed by a health care practitioner.
- Country of manufacture
- Canada
- Independent testing
- independent third-party labs
- Certifications
- Non-GMO, Made in Canada
- Storage
- Store in a cool, dry place
- Brand
- Sisu
How to take it
Take 2 capsules daily with food or as directed by a health care practitioner.
- Store in a cool, dry place away from direct light.
- Keep out of reach of children.
- Consult a practitioner if you are pregnant, nursing or on medication.
Ingredients
Each capsule contains
- Vitamin D3 (cholecalciferol)
- 100 IU
- Calcium (citrate)
- 100 mg
- Magnesium (oxide)
- 100 mg
Non-medicinal ingredients
Magnesium stearate (vegetable). Capsule shell: Gelatin.
Free from
Contains no dairy, wheat, gluten or peanuts.
Interactions and cautions
- Medications
- May reduce absorption of certain antibiotics and thyroid medication.
- Timing
- Separate from medications by 2 to 4 hours unless directed otherwise by a healthcare practitioner.
- Pregnancy and breastfeeding
- Consult a healthcare practitioner before use if pregnant or breastfeeding.
- General
- Use only as directed. Discontinue and consult a practitioner if you experience an adverse reaction.
This product is not intended to diagnose, treat, cure or prevent disease. Consult a healthcare practitioner before use. Free certified advisors are available at 1-888-386-1211, Mon to Fri, 9am to 5pm PT.
Questions about Sisu - Calcium & Magnesium 1:1
- Is this the genuine, authentic product?
- Yes. It is identical to what you would pay full price for anywhere else, sourced through our authorized supplier relationships.
- How is the price below retail?
- We buy direct, with nobody in the middle taking a cut, and we sell it for close to what we paid. You see the price privately because you have unlocked the Vault.
- How fast does it ship?
- Orders placed before 12pm PT are processed the same day and ship within two business days. Shipping is free over $89, and a flat $9.95 under that.
- Can I return it?
- You have 30 days after it arrives to request a return. Product must be unused, in its original packaging, with proof of purchase, and return shipping is paid by you. Find it cheaper anywhere in Canada and we will match the price.