Sisu Sisu - Selenium Plus 200 mcg, 60 caps

Sisu Selenium Plus - A vital antioxidant which helps defend the body from free-radical cell development. Selenium also aids in the development of anti-bodies that help maintain a healthy heart and liver and is especially effective when combined with Vitamin E, another powerful, natural antioxidant.

Sisu Sisu - Selenium Plus, 60 caps

Price

Regular Canadian retail price: $13.98 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.

See member pricing on Sisu Sisu - Selenium Plus

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: someone eating little seafood or organ meat, people supporting thyroid hormone conversion, anyone who wants the food form, not a mineral salt.

What the research supports

One capsule gives 200 mcg of selenium as selenomethionine, the organic form found in food. 60 capsules is two months at one a day.

Studies use 200 mcg a day.

Thyroid conversion (evidence: moderate, from randomized controlled trial, meta-analysis)
Selenium is required by the enzymes that convert inactive thyroid hormone T4 into its active form, T3. Trials using 200 mcg a day, the dose in one capsule, have lowered thyroid autoantibodies in people who were low to start.
Antioxidants (evidence: moderate, from randomized controlled trial, meta-analysis)
Selenium is built directly into glutathione peroxidase, an enzyme that disarms cell-damaging molecules. Restoring intake in people who are running low brings that enzyme's output back up.
Immunity (evidence: limited, from small human trials, animal studies)
Selenium is involved in switching on immune cells during an infection response. In people who already get enough, adding more shows little added effect in trials, so replacing a real gap matters more than the dose itself.

Read the literature: Thyroid conversion on PubMed, Antioxidants on PubMed, Immunity on PubMed.

Is it right for you

Worth it if

someone eating little seafood or organ meat
selenium in food tracks the soil it grew in, and 200 mcg of selenomethionine raises status reliably when the usual dietary sources are thin.
people supporting thyroid hormone conversion
the deiodinase enzymes that turn T4 into T3 are selenium-dependent, and 200 mcg is the amount used in the trials on that step.
anyone who wants the food form, not a mineral salt
selenomethionine is built into body protein the way dietary selenium is, so stores fill gradually instead of spiking and clearing.

Look elsewhere if

someone who eats Brazil nuts most days
count what you already get first, since a few nuts can match this capsule outright and stacking the two moves you toward the 400 mcg ceiling.
vegans and vegetarians
the capsule shell here is gelatin, so choose a selenium product in a hypromellose or otherwise vegetarian shell.
a shopper wanting broad antioxidant coverage
this is one mineral at one dose, so a formula carrying vitamin C, mixed tocopherols and carotenoids covers more ground for the money.

What to expect

Nothing you will feel day to day. Blood selenium climbs over a few weeks, and if thyroid support is the reason you are taking it, the change shows up on bloodwork over two to three months rather than as a symptom you notice.

How it compares

Compared with the 55 to 100 mcg of selenium already in a daily multivitamin
this is the full 200 mcg the human trials actually used, not a maintenance top-up. The tradeoff: it is another bottle, and if your multi carries selenium you have to subtract it to stay under the daily limit.
Compared with sodium selenite tablets
selenomethionine is the form the body stores in protein, and it is what the large long-term selenium trials were built on. The tradeoff: selenite is cheaper, and because it is not stored the same way it clears faster if you overshoot.

Product details

Active ingredient
Selenium (selenomethionine)
Ingredient form
caps
Strength
200 mcg
Servings per container
60
Suggested use
Take 1 capsule daily 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 1 capsule daily 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

Selenium (selenomethionine)
200 mcg

Non-medicinal ingredients

Microcrystalline cellulose, magnesium stearate (vegetable). Capsule shell: Gelatin.

Free from

Contains no dairy, wheat, gluten, corn, soy, 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 - Selenium Plus

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.