Super Immunity Booster Kit – four products for your immune system in the colder months

By Steve Born

The cold season is here – time to look after your immune system too

Staying healthy matters all year round, but now, in early November, with the race season over, the days getting shorter, the weather turning cold and cold season setting in, it is especially worth paying attention to your immune system. This is also when winter base training begins: long, cold sessions, less daylight and more time indoors all put your body to the test. One of the best things you can do is give it, every single day, the nutrients your immune system needs to function normally.

That is what the Super Immunity Booster Kit is for: four products – Clear Day, Endurance C, EnDuro D and AO Booster – in one kit, at a better price than buying them separately. Let’s look at each of them!

Clear Day

Most people reach for Clear Day in spring, during pollen season, yet it contains four ingredients that researchers have also studied extensively in connection with the immune system:

• Olive leaf extract. A potent antioxidant plant extract with an ORAC value (a laboratory measure of antioxidant capacity) of 7,608. Its main active compound is oleuropein, one of whose breakdown products is elenolic acid – both have been examined in numerous laboratory studies.
• Quercetin. A flavonoid with antioxidant properties, also found in fruit and vegetables. In laboratory studies, researchers observed that a quercetin derivative inhibited the replication of influenza A virus in cell culture [1], and in another study quercetin inhibited the replication of rhinovirus – the most common cause of the common cold – in cell culture and in an animal model [2]. These are not human studies, but they show why researchers are interested in this compound. Quercetin is also an ingredient in Tissue Rejuvenator and Vegan Tissue Rejuvenator.
• Bromelain. An enzyme blend extracted from pineapple that may improve the absorption of quercetin – which is one reason the two are paired in the formula.
• Resveratrol. A compound found in red grape skins, berries and Japanese knotweed, and one of the most widely studied plant antioxidants.

Endurance C

Endurance C is no ordinary vitamin C: it combines three sources of vitamin C, for a total of 950 mg of vitamin C per serving.

1. Calcium ascorbate – “neutral” or “buffered” vitamin C. With a pH of 7.0–7.4 it is far less acidic than regular ascorbic acid, which can cause discomfort for people with sensitive stomachs.
2. Ascorbyl palmitate – a fat-soluble form of vitamin C that, unlike water-soluble vitamin C, can also be present in the fatty environment of cells, such as cell membranes.
3. Rose hips (Rosa canina) – a natural source of vitamin C that also provides carotenoids and polyphenols.

All this is complemented by 700 mg of citrus bioflavonoid complex – including diosmin, naringin, tangeretin, diosmetin, neohesperidin and nobiletin, once also called “vitamin P” – which work synergistically with vitamin C. It also contains 500 mg of high-purity (95%, HPLC-verified) hesperidin, one of the most important citrus bioflavonoids, with antioxidant properties.

Vitamin C contributes to the normal function of the immune system – also during and after intense physical exercise – and to the protection of cells from oxidative stress. That matters especially during the long, cold sessions of winter base training.

EnDuro D

Vitamins D3 and K2 are usually mentioned in connection with bones: vitamin D contributes to normal absorption and utilisation of calcium, and vitamin K to the maintenance of normal bones. Each EnDuro D softgel contains 50 µg (2,000 IU) of vitamin D3 and vitamin K2 (MK-4 and MK-7), in olive oil.

But there is much more to vitamin D. In 2010, researchers in Copenhagen found that the immune system’s T cells need vitamin D to become activated: without sufficient vitamin D, T cells cannot effectively “switch on” to defend against pathogens [3]. According to researcher Dr. Richard Mellanby, low vitamin D status has long been considered a significant risk factor for autoimmune diseases, and their study suggests that vitamin D metabolites can substantially influence how the immune system works [4]. Research on vitamin K, meanwhile, suggests that it may play a role in modulating NF-κB, a transcription factor that is an important regulator of both innate and adaptive immune responses [5][6].

Vitamin D contributes to the normal function of the immune system. From November to February, here in Central Europe, sunlight is no longer strong enough for the skin to produce meaningful amounts of vitamin D – so now is a particularly good time to pay attention to your intake.

AO Booster

Numerous studies show that antioxidants are important for maintaining an effective immune response [7]. AO Booster made it into the kit because it contains unique, highly potent antioxidants that are rarely found in other formulas: all four tocopherols of the vitamin E family (with an emphasis on the gamma form) and all four tocotrienols (EVNol®), plus lutein and astaxanthin. Vitamin E contributes to the protection of cells from oxidative stress.

Summary

The immune system is a complex network of organs, cells and proteins that defends the body against pathogens and “remembers” microbes it has defeated before so it can respond faster next time [8]. It never rests – so supporting it can’t be an occasional thing either. Taking the Super Immunity Booster Kit daily is an easy way to make sure your body gets these nutrients through the colder months: during the weeks of winter base training, on dark early-morning sessions and through the holiday season with its many indoor gatherings.

And remember: the kit complements the basics – a varied diet, enough sleep, managing stress and sensibly dosed training – it does not replace them.

Suggested use:

• Clear Day: 1 serving (3 capsules) daily.
• Endurance C: 3 capsules daily with meals.
• EnDuro D: 1 softgel daily, 2–3 in the dark winter months.
• AO Booster: 1–2 softgels daily, plus 1 more with dinner on long training days.

Do not exceed the recommended daily dose.

Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle. If you take medication, have a known medical condition, or are pregnant or breastfeeding, consult your doctor before use.

References

1. Choi, H. J.; Song, J. H.; Park, K. S.; Kwon, D. H. (2009). European Journal of Pharmaceutical Sciences, 37(3–4), 329–333.
2. Ganesan, S.; Faris, A. N.; Comstock, A. T. et al. (2012). Antiviral Research, 94(3), 258–271.
3. von Essen, M. R. et al. (2010). Nature Immunology. ScienceDaily
4. Frontiers in Immunology (2019), 10, 600. Frontiers
5. Ghosh, S.; Dass, J. F. P. (2016). Gene, 584(1), 97–109.
6. Rossol, M. et al. (2011). Critical Reviews in Immunology, 31(5), 379–446.
7. Wintergerst, E. S.; Maggini, S.; Hornig, D. H. (2007). Annals of Nutrition and Metabolism, 51(4), 301–323.
8. Better Health Channel – Immune system
9. Biomedical Reports (2016), 5(3), 283. Spandidos
10. Nutrients (2019), 11(5), 946. MDPI