NZ Blackcurrant

New Zealand Berry Support for Antioxidants, Immunity & Everyday Wellness

New Zealand blackcurrants are naturally rich in vitamin C, anthocyanins and other polyphenol antioxidants. Their deep purple colour comes from anthocyanins, plant compounds that help protect cells from oxidative stress and have been studied for their potential roles in circulation, eye health, exercise recovery and healthy ageing.

Blackcurrants are particularly nutrient-dense compared with many commonly eaten berries, making them a useful whole-food source of antioxidants alongside their vitamin and mineral content.

Why Are Blackcurrants So Rich in Antioxidants?

Blackcurrants contain several types of polyphenols, but they are especially known for their high concentration of anthocyanins.

These compounds help plants protect themselves from environmental stress and can also contribute to antioxidant defence when consumed as part of the diet. Oxidative stress occurs when the production of reactive molecules exceeds the body's ability to neutralise them, potentially contributing to cellular damage over time.

Rather than acting as a cure for oxidative stress-related conditions, antioxidant-rich foods such as blackcurrants help support the body's existing protective systems.

Vitamin C and Immune Support

Blackcurrants are an excellent natural source of vitamin C.

Vitamin C contributes to normal immune function and helps protect cells from oxidative stress. It is also essential for collagen formation, making it important for skin, blood vessels, cartilage, bones and other connective tissues.

Because vitamin C is water-soluble and cannot be stored in large amounts, regularly eating vitamin C-rich foods is a useful part of maintaining an adequate intake.

Circulation and Blood Vessel Health

Anthocyanins have attracted particular interest for their effects on the cardiovascular system.

Research suggests blackcurrant compounds may help support healthy blood flow and normal blood vessel function, partly through effects on the cells lining blood vessels.

Good circulation affects much more than heart health. Efficient blood flow helps deliver oxygen and nutrients to muscles, the brain, skin and other tissues throughout the body.

This has also made New Zealand blackcurrant increasingly popular among active people interested in exercise performance and recovery.

Blackcurrants and Eye Health

The retina has a high metabolic demand and is exposed to considerable oxidative stress, making antioxidant nutrition particularly relevant to eye health.

Blackcurrant anthocyanins have been studied for their potential to support visual function, particularly during periods of eye fatigue or low-light adaptation.

Vitamin C also contributes to antioxidant protection within the eye, making blackcurrants a useful addition to a varied diet containing other colourful fruits and vegetables.

Why New Zealand Blackcurrants?

Benefit area	How blackcurrant supports it
Antioxidant support	Provides naturally occurring anthocyanins and polyphenols
Immune function	Naturally associated with vitamin C
Skin health	Vitamin C supports normal collagen formation
Eye-health nutrition	Anthocyanins pair well with other eye-health nutrients
Sports nutrition	Easy to add to smoothies, protein shakes and recovery routines
Healthy ageing	Supports antioxidant and collagen-related wellness goals
Everyday wellbeing	A simple functional food powder for daily use

New Zealand blackcurrants are grown in a cool climate with long daylight hours and relatively high exposure to ultraviolet light. These growing conditions may encourage the plants to produce high concentrations of protective polyphenols, including anthocyanins.

Their naturally rich colour and nutrient profile have made New Zealand blackcurrants a popular ingredient in antioxidant, circulation, eye-health and sports-nutrition formulas.

As with other whole-food ingredients, their value comes from the combination of nutrients and plant compounds rather than one isolated antioxidant.

NZ Blackcurrant for Pets

Blackcurrant can also be used in nutritional formulas for dogs and cats as a natural source of anthocyanins, vitamin C and other polyphenols.

These compounds can contribute to antioxidant defence, healthy circulation, eye health and general cellular protection, particularly as part of a wider formula containing quality protein, essential fatty acids, vitamins and minerals. Dogs can produce their own vitamin C, so in pet nutrition the broader polyphenol and antioxidant profile of blackcurrant is often more relevant than vitamin C alone.

How O2B Uses New Zealand Blackcurrants

To harness the antioxidant power of NZ Blackcurrants, we've created O2B Blackcurrant Powder, for those who love to create smoothies or to mix it in with their food. For an extra vitamin C boost, we also have O2B Currant C powder, that adds 2,400mg of vitamin C as ascorbic acid. If you would rather attain the high dose vitamin C and blackcurrant benefits in a capsule form, we have made O2B Currant C Max for your convenience.