Sisu Sisu - Vitamin D3 1000IU, 200 tabs
Sisu Vitamin D3 - Vitamin D3 is essential for the absorption of Calcium and Phosphorus. Maintaining proper levels of Vitamin D in the body is critical for the development and maintenance of strong bones and teeth. Particularly important in later life for the prevention of osteoporosis and hypocalcemea. Adequate quantities of this important vitamin should be part of everyone's diet.
Price
Regular Canadian retail price: $12.98 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.
In 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
- D3 paired with K2
- The combination that helps steer calcium toward your bones.
- Built for Canadian winters
- Tops up the vitamin D most of us run low on from October to April.
- Bone and immune support
- Foundational for immune function and long-term bone strength.
Best suited to: an adult getting through a canadian winter, someone who wants to fine-tune their dose, anyone avoiding gelatin softgels.
What the research supports
One tablet gives 1000 IU of cholecalciferol, the standard Canadian maintenance dose. Two hundred tablets lasts about six and a half months at one a day.
Studies correcting low levels typically use 2000 to 5000 IU a day.
- Bone maintenance (evidence: strong, from randomized controlled trial, meta-analysis)
- Vitamin D3 is what lets your gut absorb the calcium in food, so keeping levels adequate is what allows calcium to reach bone in the first place.
- Immunity (evidence: moderate, from randomized controlled trial, meta-analysis)
- Vitamin D helps immune cells respond appropriately, and daily doses in this range have shown a modest benefit for respiratory defence, mainly in people who started out low.
- Muscle strength (evidence: mixed, from randomized controlled trial)
- Correcting a real vitamin D shortfall helps muscles contract and balance normally, but trials in people who already had enough have generally not repeated the benefit.
Read the literature: Bone maintenance on PubMed, Immunity on PubMed, Muscle strength on PubMed.
Is it right for you
Worth it if
- an adult getting through a Canadian winter
- skin makes essentially no vitamin D from October to March at this latitude, and 1000 IU daily is the amount that holds a normal reading steady through that gap.
- someone who wants to fine-tune their dose
- 1000 IU units let you run one, two or three tablets a day and change it with the seasons, which a 5000 IU capsule cannot do.
- anyone avoiding gelatin softgels
- most 1000 IU D3 comes as an oil softgel in a gelatin shell, and this is a dry tablet instead.
Look elsewhere if
- someone with a confirmed low vitamin D reading
- a 2500 to 5000 IU dose, or a practitioner-set correction plan, will get you to target in a fraction of the time 1000 IU takes.
- someone already taking a multivitamin with D3
- check the multi first, since most already carry 400 to 1000 IU, and adding this on top may just be duplicating what you have.
- someone eating a genuinely fat-free diet
- a D3 softgel suspended in oil, or taking this with the fattiest meal of the day, since a dry tablet has no carrier fat of its own and vitamin D needs some to absorb well.
What to expect
Nothing perceptible. Blood levels climb gradually and plateau after roughly eight to twelve weeks of consistent daily use, which is also the earliest point a repeat blood test tells you anything useful. Skipping days matters more than the exact time of day you take it.
How it compares
- Compared with a 1000 IU D3 softgel in oil
- no gelatin, no oil to go rancid, and 200 tablets in a bottle is a longer run than most softgel counts. The tradeoff: the oil softgel gives more reliable absorption on its own, whereas this tablet really does want to be taken with a meal that contains some fat.
- Compared with a 5000 IU capsule
- 1000 IU steps let you sit at a sensible maintenance level year-round instead of overshooting. The tradeoff: if you are actually trying to raise a low reading, you will be swallowing three to five of these a day to match one of those.
Product details
- Active ingredient
- Vitamin D3 (cholecalciferol)
- Ingredient form
- tabs
- Strength
- 1000 iu
- Servings per container
- 200
- Suggested use
- Take 1 tablet daily, or as directed by a health 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 1 tablet daily, or as directed by a health 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 tablet contains
- Vitamin D3 (cholecalciferol)
- 1000 IU
Non-medicinal ingredients
Isomalt, croscarmellose sodium, microcrystalline cellulose, magnesium stearate (vegetable), calcium silicate.
Free from
Contains no dairy, wheat, or gluten.
Interactions and cautions
- Medications
- Vitamin K may interact with blood-thinning medication. Review with your practitioner if you take warfarin.
- 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 - Vitamin D3 1000IU
- 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.