Acute Immune Boost

60 CAPS Product No. 00711

Auto-Ship Item Every
The auto-ship is carried out on the same date of the month as of placing the order.

Egg Free Egg Free
Gluten Free Gluten Free
Peanut and Tree Nut Free Nut Free
Dairy Free Dairy Free
Loyal Customers

Loyal Customers

  • FREE Shipping orders over $50.00
  • Package ships USPS priority mail
  • Package arrival (3 - 10 business days)

NOTE: Holidays may affect duration of shipping time.

Healthcare Professionals

Healthcare Professionals

  • FREE Shipping orders over $200.00
  • All orders ship in 24 Hours
  • Package ships UPS ground
  • Package arrival (3 - 7 business days)

NOTE: WE ARE EXPERIENCING HIGH VOLUMES THAT CAN DELAY SHIPPING: Holidays may affect duration of shipping time.

International Shipping Policy

International Shipping Policy

We offer online ordering for shipments going to the United States, Canada and Australia. For international orders, call customers service at
888-242-5327 to place your order.

NOTE: Metabolic Maintenance is not responsible for additional duties, taxes, import licensing or product seizures. Please check with the appropriate authorities in your country to determine local regulations.

Please contact Customer Service to initiate a return.

  • All products being returned must be unopened.
  • We only accept returns on products purchased directly from our company .
  • Returns must be authorized within 5 days of receiving product.
  • No returns after 35 days from the date of purchase.
  • Authorized returns are subject to a 15% restocking fee.
  • Custom products are non-refundable.
  • We only accept returns for product purchased directly through our website.

3 Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry's standard dummy text ever since the 1500s, when an unknown printer took a galley of type and scrambled it to make a type specimen book. It has survived not only five centuries, but also the leap into electronic typesetting, remaining essentially unchanged.

Acute Immune Boost is a dynamic immune support product, with heavy-hitting nutrients and botanical extracts to promote optimal immune function when faced with seasonal threat. This blend contains powerful doses of top nutrients involved in holistic immune function, such as vitamins A, C, D, and zinc. Additional ingredients, such as NAC and Sambucus (elderberry), have shown specific benefits in supporting upper respiratory health.

  • Supplies supportive nutrients for seasonal defense and recovery
  • Provides herbal blend with NAC to support upper respiratory health
  • Herbal extracts, Sambucus (elderberry) and Andrographis, are provided in research-backed amounts for optimal immune response
* These statements have not been evaluated by the Food & Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.

Acute Immune Boost


Product Code: 00711          Capsules per Bottle: 60


Each serving of 1 size 0 vegetarian capsules contains:


Vitamin C (as Ascorbic Acid)

102 mg

Vitamin C (as Ascorbyl Palmitate)

13 mg

Zinc (as Zinc Citrate)

10 mg

Vitamin D-3 (2,667 IU as Cholecalciferol)

67 mcg

Vitamin A (1,667 IU as Retinyl Palmitate)

500 mcg RAE

Elderberry Extract (standardized to 15% Anthocyanins)

100 mg

Andrographis Extract (standardized to 30% Andrographolide)

67 mg


200 mg

  Other ingredients: vegetarian cellulose capsule.


What is Acute Immune Boost?

Acute Immune Boost is designed for short-term use and rapid immune support, with heavy-hitting nutrients and botanical extracts to quickly bring your body systems back to optimal function.

The common cold is the leading cause for missed work and school and can lead to complications such as ear infections, sinusitis, bronchitis, and pneumonia that may call for medical intervention, making early immune support a potential cost saving as well as protecting your well-being.

Acute Immune Boost contains powerful doses of the top nutrients involved in positive immune function, including vitamins A, C, D, and zinc [1]. Two top immune-boosting plant extracts, elderberry and andrographis complete this potent, synergistic formula.


How Does Acute Immune Boost Work?

There is a range of immune-supportive nutrients in Acute Immune Boost, but probably the most famous for its immune-boosting properties is vitamin C. Vitamin C is a highly effective antioxidant that protects cells from damage by free radicals [2]. Regular supplementation of vitamin C has been associated with a reduced duration (in adults by 8%, in children by 14%), severity, and incidence (by 9% in the general population) of the common cold [1].

Impaired immune function due to inadequate zinc status may be the most common cause of secondary immunodeficiency in humans [3]. Zinc can inhibit replication of the rhinovirus (which causes the common cold) and has been demonstrated to shorten the duration of colds by approximately 33%. It is suggested that zinc supplementation is most effective when started within 24 hours of symptom onset [3].

Recent experiments have shed a brighter light on the immune-enhancing properties of vitamin D, specifically its role in innate immunity and vitamin D-dependent antimicrobial proteins that combat infections [4]. Although vitamin D can be made in the body in response to sun exposure, supplementary vitamin D may be most important during the winter months when there are fewer hours of sunlight and colder temperatures, keeping people indoors or limiting the skin's exposure to sunlight with warm clothing when outdoors.

Vitamin A is also known for its positive effects on the human immune response toward disease. Vitamin A deficiency impairs innate immunity by preventing normal regeneration of mucosal barriers damaged by infection, and by diminishing the function of immune cells such as neutrophils, macrophages, and natural killer cells [5].

N-Acetyl-L-Cysteine (NAC) has a protective effect over the strength of the immune system, especially in the aging population, and may aid in shortening the duration of respiratory tract/bronchial infections [6,7]. When colds lead to excess mucus formation, NAC may help to thin mucus for easier expectoration.

In terms of medicinal herbal ingredients, elderberries have long been used in traditional, natural remedies for colds and flu. Observational and clinical studies support this history of use, as elderberries have been scientifically linked to a significant reduction in the duration and severity of colds and flu-like symptoms [8]. There may also be preventative benefits to taking elderberry before extended air travel. One study noted a significant reduction in both severity and duration in colds in those who supplemented with elderberry before and during trips when compared to a placebo group [8]. Elderberries also contain a variety of nutrients ranging from various vitamins (A, B1, B2, B6, B9, C, and E), trace elements (such as Cu, Zn, and Fe), minerals (such as K, Ca and Mg), and phytochemicals (such as carotenoids, phytosterols, and polyphenols).

Andrographis or A. Paniculata (Burm.f.) Wall ex Nees (Acanthaceae family), also known as nemone chinensi, or Chuān Xīn Lián, has traditionally been used in Chinese herbal medicine and ayurvedic medicine as an antipyretic for relief from the severity and duration of common colds, alleviating fevers, coughs, and sore throats [9]. Studies have shown that A. Paniculata has also been effective against avian influenza and human influenza viruses, in vitro [9].


 What are the Suggested Uses for Acute Immune Boost?

  • For a short-term, but highly potent boost to the immune system during times of seasonal or environmental viral threats.
  • Supplies andrographis and elderberry in research-backed amounts for acute immune support.
  • Aids in the protection against viral damage and lost productivity by supplying needed nutrients for optimal immune response.

Source Materials: Available upon request


Allergens:  Free of: Wheat (gluten), eggs, milk, soybeans, shellfish, fish, peanuts, tree nuts.


Recommendations: At first sign of acute immune challenges, take 3 capsules daily for up to 20 days or as directed by a healthcare practitioner.


Precautions: Pregnant or lactating women and individuals taking prescription medications should consult with a healthcare professional before taking any supplement.


  1. Rondanelli, Mariangela, et al. "Self-care for common colds: the pivotal role of vitamin D, vitamin C, zinc, and Echinacea in three main immune interactive clusters (physical barriers, innate and adaptive immunity) involved during an episode of common colds—Practical advice on dosages and on the time to take these nutrients/botanicals in order to prevent or treat common colds." Evidence-Based Complementary and Alternative Medicine 2018 (2018).
  2. Pham-Huy, Lien Ai, Hua He, and Chuong Pham-Huy. "Free radicals, antioxidants in disease and health." International journal of biomedical science: IJBS 4.2 (2008): 89.
  3. Maggini, S., S. Beveridge, and M. Suter. "A combination of high-dose vitamin C plus zinc for the common cold." Journal of International Medical Research 40.1 (2012): 28-42.
  4. Chesney RW. “Vitamin D and The Magic Mountain: the anti-infectious role of the vitamin.” JPediatr (2010) 156:698-703. 
  5. Armas, Laura AG, Bruce W. Hollis, and Robert P. Heaney. "Vitamin D2 is much less effective than vitamin D3 in humans." The Journal of Clinical Endocrinology & Metabolism 89.11 (2004): 5387-5391.
  6. National Center for Biotechnology Information. PubChem Compound Database; CID=445354, (accessed Oct. 19, 2018).
  7. Tiralongo, Evelin, Shirley S. Wee, and Rodney A. Lea. "Elderberry supplementation reduces cold duration and symptoms in air-travellers: A randomized, double-blind placebo-controlled clinical trial." Nutrients 8.4 (2016): 182.
  8. Krawitz, Christian, et al. "Inhibitory activity of a standardized elderberry liquid extract against clinically-relevant human respiratory bacterial pathogens and influenza A and B viruses." BMC complementary and alternative medicine 11.1 (2011): 16.
  9. Hu, Xiao-Yang, et al. "Andrographis paniculata (Chuān Xīn Lián) for symptomatic relief of acute respiratory tract infections in adults and children: A systematic review and meta-analysis." PloS one 12.8 (2017): e0181780.
  10. Okhuarobo, Agbonlahor, et al. "Harnessing the medicinal properties of Andrographis paniculata for diseases and beyond: a review of its phytochemistry and pharmacology." Asian Pacific journal of tropical disease 4.3 (2014): 213-222.
  11. San-Miguel, B., et al. "N-acetyl-cysteine protects liver from apoptotic death in an animal model of fulminant hepatic failure." Apoptosis 11.11 (2006): 1945-1957.
  12. Wu, Guoyao, et al. "Glutathione metabolism and its implications for health." The Journal of nutrition 134.3 (2004): 489-492.
  13. Arranz, Lorena, et al. "The glutathione precursor N-acetylcysteine improves immune function in postmenopausal women." Free radical biology & medicine 45.9 (2008): 1252-1262.
  14. De la Fuente, Macarena. "Effects of antioxidants on immune system ageing." European Journal of Clinical Nutrition 56.S3 (2002): S5.


* These statements have not been evaluated by the Food & Drug Administration. These products are not intended to diagnose, treat, cure or prevent any disease.


Acute Immune Boost
Write a Review

Now please write a (short) review....(max. 2000 characters)

Characters Remaining: 2000

Join Our Social Community!