O2B Selenium Plus

O2B Selenium Plus

Essential selenium + vitamin C for thyroid health, immune function and antioxidant protection.

Supports normal thyroid hormone metabolism
Supports immune system wellbeing
Includes antioxidant support
Regular price$34.50
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O2B Selenium combines bioavailable selenomethionine with vitamin C to support healthy thyroid function, antioxidant protection, normal immune function and overall cellular wellbeing.

Essential selenium and vitamin C for thyroid and immune health

O2B Selenium combines 100 mcg of selenium, supplied as selenomethionine, with 275 mg of vitamin C to support healthy thyroid function, antioxidant protection and normal immune-system activity.

These two essential nutrients work through complementary antioxidant pathways, helping protect cells from oxidative stress while supporting important functions throughout the body.

Selenium: essential for healthy thyroid function

The thyroid gland contains a high concentration of selenium, reflecting its important role in thyroid hormone metabolism and antioxidant protection.

Selenium is required for enzymes called iodothyronine deiodinases, which help regulate the conversion and metabolism of thyroid hormones, including the conversion of thyroxine (T4) to the more biologically active triiodothyronine (T3).

It is also a component of antioxidant enzymes that help protect thyroid tissue from oxidative stress generated during normal thyroid hormone production.

Maintaining adequate selenium intake is therefore important for normal thyroid function and healthy hormone metabolism.

Antioxidant protection at a cellular level

Selenium is an essential component of several antioxidant proteins, including glutathione peroxidases and thioredoxin reductases. These enzymes help manage reactive oxygen species and maintain normal cellular redox balance.

Vitamin C complements these processes as a water-soluble antioxidant, helping protect cells from free-radical damage and supporting the regeneration of other antioxidants, including vitamin E.

Together, selenium and vitamin C provide complementary nutritional support for the body's natural antioxidant defence systems.

Supporting normal immune function

Selenium and vitamin C both contribute to healthy immune-system activity.

Selenium supports the normal development and function of immune cells, while vitamin C contributes to immune-cell function and helps protect these cells from oxidative stress.

Adequate intake of both nutrients is important for maintaining normal immune responses and supporting overall wellbeing.

Selenomethionine: a well-absorbed form of selenium

O2B Selenium uses selenomethionine, an organic form of selenium in which selenium is incorporated into the amino acid methionine.

Selenomethionine is generally well absorbed and can be incorporated into body proteins, providing a source of selenium that can subsequently contribute to normal selenium metabolism.

Each capsule provides 100 mcg of selenium in this form.

Vitamin C: additional support for connective tissue and iron absorption

Alongside its antioxidant and immune-supporting roles, vitamin C is essential for normal collagen formation, helping maintain healthy skin, blood vessels, cartilage and other connective tissues.

It also enhances the absorption of non-haem iron from plant-based foods, making it an important nutrient for normal iron metabolism.

With 275 mg of vitamin C per capsule, O2B Selenium offers additional nutritional benefits beyond selenium alone.

Everyday support for thyroid and cellular wellbeing

Selenium is an essential trace mineral that must be obtained through the diet. Because selenium levels in New Zealand soils can be relatively low, dietary intake may vary depending on food choices and where foods are produced.

O2B Selenium provides a convenient combination of selenium and vitamin C to help maintain adequate nutritional intake and support normal thyroid, immune and antioxidant function.

What is O2B Selenium Plus used for?

O2B Selenium Plus is designed to support normal thyroid hormone metabolism, immune function, antioxidant defence, normal DNA production, collagen formation and cellular wellbeing.

Each capsule combines selenium as selenomethionine with vitamin C as ascorbic acid.

How much selenium is in each capsule?

Each capsule provides 100mcg of selenium as selenomethionine.

How much vitamin C is in each capsule?

Each capsule provides 275mg of vitamin C as ascorbic acid.

What is selenium?

Selenium is an essential trace mineral. The body uses it to make selenoproteins involved in antioxidant protection, thyroid hormone metabolism, immune function and other normal cellular processes.

What is selenomethionine?

Selenomethionine is an organic form of selenium in which selenium is incorporated into the amino acid methionine. Organic forms such as selenomethionine are efficiently absorbed.

Why does thyroid function need selenium?

Selenium-dependent enzymes help regulate thyroid hormones, including the conversion of T4 into the more active T3 form.

Selenium Plus should support normal thyroid function only. It does not diagnose or treat a thyroid condition and should not replace thyroid medication.

Why is vitamin C included?

Vitamin C supports normal immune function and antioxidant activity. It is also required for collagen formation and helps the body absorb non-haem iron from plant foods.

How many capsules should I take?

Adults take one capsule daily, or as directed by a healthcare professional.

How long does one bottle last?

A bottle contains 90 capsules and lasts approximately 90 days when taking one capsule daily.

Does everyone in New Zealand need a selenium supplement?

No. Many people can obtain selenium through food.

However, the selenium content of foods can vary according to the food source and local soil selenium concentrations. Supplementation may be appropriate for some people, but it should not be assumed that every New Zealander is deficient.

Which foods contain selenium?

Food sources include:

  • Seafood
  • Meat and poultry
  • Eggs
  • Dairy products
  • Grain and cereal products
  • Brazil nuts

The amount in plant-based foods can vary according to soil conditions.

Can I take Selenium Plus with a multivitamin?

Check the multivitamin label first. Many multivitamin and multimineral formulas already contain selenium.

Combining products without checking the total amount may lead to unnecessary or excessive intake.

Can I take Selenium Plus with a thyroid-support supplement?

Only after checking the other product’s selenium content. Thyroid-support formulas may contain selenium, iodine or both.

If you have a diagnosed thyroid condition or take thyroid medication, consult your healthcare professional before combining supplements.

Can I eat Brazil nuts while taking Selenium Plus?

Brazil nuts can contain very high and highly variable amounts of selenium.

Occasionally eating them may fit into a balanced diet, but regularly eating several Brazil nuts while also taking a selenium supplement can substantially increase total selenium intake.

Can too much selenium be harmful?

Yes. Excessive selenium intake can cause selenium toxicity, also called selenosis.

Possible signs include:

  • Metallic taste
  • Garlic-like breath
  • Nausea or abdominal discomfort
  • Hair loss
  • Brittle hair or nails
  • Unusual fatigue or weakness
  • Neurological symptoms

Follow the product directions and avoid stacking several selenium-containing products.

Does Selenium Plus increase energy?

Selenium is involved in normal thyroid hormone metabolism, but it is not a stimulant and should not be marketed as producing an immediate energy boost.

Ongoing fatigue has many possible causes and should be assessed rather than assumed to reflect low selenium.

Does Selenium Plus prevent colds or other infections?

No supplement can guarantee that you will not become unwell.

Selenium and vitamin C contribute to normal immune function, but Selenium Plus should not be presented as preventing, treating or curing infections.

Does vitamin C support collagen formation?

Yes. Vitamin C is required for normal collagen biosynthesis. Collagen is an important structural protein in skin, cartilage, blood vessels and other connective tissues.

Does vitamin C help with iron absorption?

Yes. Vitamin C improves the absorption of non-haem iron, the form of iron found in plant-based foods.

Can I take Selenium Plus during pregnancy or breastfeeding?

Consult your midwife, doctor, pharmacist or dietitian before use. Selenium and vitamin C needs change during pregnancy and breastfeeding, and other prenatal products may already contain these nutrients.

Can children take Selenium Plus?

The supplied dose is for adults. Do not give this product to a child unless a qualified healthcare professional has recommended an appropriate dose.

Can I take Selenium Plus with prescription medication?

Consult your healthcare professional or pharmacist before combining the product with prescription medicine, particularly if you are receiving thyroid treatment, cancer treatment or treatment for a kidney or liver condition.

What is the difference between Selenium Plus and a multivitamin?

Selenium Plus is a targeted formula providing selenium and vitamin C.

A multivitamin contains a wider range of vitamins and minerals, usually at different amounts. You should choose according to your overall diet and needs and avoid unnecessarily doubling up nutrients.

Suggested Dose:

Adult take 1 capsule daily or as directed by your health care professional.

Cautions and Warnings:

  • If taking prescription medication, pregnant, nursing or you have known ingredient sensitivities please consult your health care professional before taking this product.
Ingredient Amount Role in Antioxidant & Immune Support
Ascorbic Acid (Vitamin C) 275 mg Provides antioxidant protection and supports normal immune function, collagen production and iron absorption
Selenium (as Selenomethionine) 100 mcg Supports antioxidant protection, normal immune function and healthy thyroid function
Encapsulating aids

Who is O2B Selenium Plus for?

Perhaps seafood and eggs rarely make it onto your plate. Your meals may change from week to week, or you may have heard that selenium levels in locally grown foods vary depending on where they were produced. You might simply prefer a clearly measured amount rather than trying to estimate your intake from several different foods and supplements.

O2B Selenium Plus may suit adults who:

  • Want targeted selenium support rather than a full multivitamin
  • Want nutritional support for normal thyroid function
  • Want to support immune function and antioxidant protection
  • Eat little seafood, meat, poultry or eggs
  • Follow a restricted or limited diet and have discussed supplementation with a professional

Why take O2B Selenium Plus?

You are unlikely to feel selenium working immediately after taking a capsule, and it is not a stimulant designed to create a sudden burst of energy. Its value lies in supporting essential processes that happen behind the scenes every day: thyroid hormone metabolism, antioxidant enzyme activity, immune function and normal cellular maintenance.

How to take O2B Selenium Plus

Take one capsule per day.
Do not exceed the recommended serving.

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