Product info
Why Choose nutraMetrix Isotonix® Multivitamin Fifty Plus*
Adequate nutrition during the golden years has its challenges. As we age our bodies become less efficient at absorbing crucial nutrients, so it's important to be sure we’re getting the right vitamins and minerals. A good way to make sure you get all the nutrients you need is by taking a daily multivitamin supplement. Although a healthy diet is crucial to getting the nutrients your body needs, as we mature we often experience smaller appetites, loss of taste, dietary restrictions due to medical problems and stress can still impact our food choices and food quality, which can impede us from achieving our optimal nutrient intake via food alone.
People over 50 should take special care that they are getting enough B12 – found naturally in meats, fish, eggs and dairy products, along with folate – found in animal products and leafy vegetables. These are nutrients that the body absorbs less of as you get older. Getting enough B12 and folate supports the formation of red blood cells and promotes healthy nerve function. Adequate intake of B12 and folate can also support liver, heart and cognitive health.
Vitamin C is an antioxidant, and wards off free radicals. Getting enough vitamin C is especially important as you get older because it supports immune health. Vitamin C supports healthy cholesterol levels in the blood and fights free radicals to support heathy eyes as we mature.
Calcium and vitamin D are also critical nutrients to take in as you age, to help maintain bone strength; especially in women. In addition to needing added vitamins, aging adults need added minerals as well. Along with calcium, your aging body needs magnesium, chromium, potassium, zinc and many more to help you maintain good health.
Making sure you get the proper nutrients may not turn back the clock, but it can help keep it wound up. Isotonix Multivitamin Fifty Plus is an isotonic-capable food supplement that has been specially formulated with a broad spectrum of nutrients that help support the health of adults 50+ and help keep your clock ticking efficiently. Isotonix Multivitamin Fifty Plus supplements dietary deficiencies and helps maintain normal metabolic functioning, essential to keeping you healthy as you age.
Only Isotonix Multivitamin Fifty Plus contains a unique blend of complimentary vitamins and minerals with the superior delivery of Isotonix, which makes them easier to take for aging adults. Isotonix dietary supplements are a replica of the body’s own fluids such as tears, sweat and plasma. The body’s common osmotic pressure allows a consistent maintenance of body tissues. Isotonix Multivitamin Fifty Plus is readily available to our bodies due to its isotonic state.
Isotonix dietary supplements are delivered in an isotonic liquid solution. This means that the body has less work to do in obtaining maximum absorption. The isotonic state of the suspension allows nutrients to pass efficiently into the small intestine and be rapidly delivered into the bloodstream. With Isotonix products, little nutritive value is lost, making the absorption of nutrients highly efficient while delivering maximum results.
Primary Benefits of nutraMetrix Isotonix® Multivitamin Fifty Plus*

- Helps promote normal levels of vitamins and minerals in aging adults
- Provides nutrients essential for numerous processes in the body
- Contains activated forms of select B-vitamins to help ensure optimal utilization by the body
- B Vitamins are essential for many key functions in the body
- Vitamins B1, B2, B3, and biotin participate in different aspects of energy production
- Vitamin B5 is involved in the Kreb’s cycle of energy production and is needed to make the neurotransmitter acetylcholine. B5 is also essential in producing, transporting, and releasing energy from fats
- Vitamin B6 is essential for amino acid metabolism
- Vitamin B12 and folic acid facilitate steps required for cell division
- Folic acid helps form building blocks of DNA, the body’s genetic information, and building blocks of RNA, needed for protein synthesis in all cells.
- Aids in red blood cell formation
- Involved in the metabolism of proteins, fats, and carbohydrates
- Necessary for proper functioning of the nervous system, bone marrow and intestinal tract (B-vitamin deficiencies appear in these tissues first)
- Helps support brain health/cognitive health
- Helps maintain normal production of neurotransmitters
- Promotes/supports a healthy nervous system
- Supports a healthy heart
- Promotes cardiovascular health
- Supports healthy vision and eyes
- Supports healthy immune functions
- Supports skeletal and muscle health
- Supports healthy teeth and gums
- Provides a strong antioxidant defense
- Vegetarian
Product Classifications

No Detectable GMOs - The finished product contains no detectable genetically-modified organisms
Vegetarian - This product is vegetarian
Isotonic-Capable Drinkable Supplements - Easy-to-swallow supplements in liquid form are immediately available to the body for absorption
Quality Standards - GMP Operations and Standardized Ingredients
Checked For: Heavy Metals, Microbiological Contaminants, Allergens, Residual Solvents, Potency, Purity and Identity
Isotonix Delivery System

Isotonic, which means “same pressure,” bears the same chemical resemblance of the body’s blood, plasma and tears. All fluids in the body have a certain concentration, referred to as osmotic pressure. The body’s common osmotic pressure, which is isotonic, allows a consistent maintenance of body tissues. In order for a substance to be absorbed and used in the body’s metabolism, it must be transported in an isotonic state.
Isotonix dietary supplements are delivered in an isotonic solution. This means that the body has less work to do in obtaining maximum absorption. The isotonic state of the suspension allows nutrients to pass directly into the small intestine and be rapidly absorbed into the bloodstream.With Isotonix products, little nutritive value is lost, making the absorption of nutrients highly efficient while delivering maximum results.
How To Take and Store nutraMetrix® Products
Congratulations on taking steps to better health and well being! Here are a few tips on how to take your nutraMetrix Isotonix products, and the best way to store your products for maximum benefits. Always follow the directions for use as indicated on the label of the bottle, unless otherwise instructed by your health professional.
Patient Education Series - nutraMetrix® - Isotonix® Multivitamin Fifty Plus (50+)
Key Ingredients Found In nutraMetrix Isotonix® Multivitamin Fifty Plus*
Frequently Asked Questions*
Scientific Studies for nutraMetrix Isotonix® Multivitamin Fifty Plus*
- McCusker MM et al. An eye on nutrition: The role of vitamins, essential fatty acids, and antioxidants in age-related macular degeneration, dry eye syndrome, and cataract. Clin Dermatol. 34(2):276-85, 2016.
- Bartlett, H. and Eperjesi, F. Age-related macular degeneration and nutritional supplementation: a review of randomized controlled trials. Ophthalmic & Physiological Optics. 23(5): 383-399, 2003.
- Tan AG et al. Serum homocysteine, vitamin B12, and folate, and the prevalence and incidence of posterior subcapsular cataract. Invest Ophthalmol Vis Sci. 56(1):216-20, 2014.
- Rasmussen HM1, Johnson EJ. Nutrients for the aging eye. Clin Interv Aging. 8:741-8, 2013.
- High KP et al. Nutritional strategies to boost immunity and prevent infection in elderly individuals. Clin Infect Dis. 33(11):1892-900,2001.
- Etten, E., et al. 1,25-Dihydroxycholecalciferol: Endocrinology Meets the Immune System. Proceedings of the Nutrition Society. 61: 375-380, 2002.
- Lenton, Kevin J., et al. Vitamin C Augments Lymphocyte Glutathione in Subjects with Ascorbate Deficiency. American Journal of Clinical Nutrition. 77: 189 – 195, 2003.
- Qing Shi, H., et al. Host Nutritional Selenium Status as a Driving Force for Influenza Virus Mutations. The Federation of American Societies for Experimental Biology. Express Article published online, 2001.
- Rahman, J., et al. Effects of Zinc Supplementation as Adjunct Therapy on the Systemic Immune Responses in Shigellosis. American Journal of Clinical Nutrition. 81: 495 – 502, 2005.
- Rink, L. and Kirchner, H. Zinc-Altered Immune Function and Cytokine Production. Journal of Nutrition. 130: 1407S-1411S, 2000.
- Sasazuki, S., et al. Effect of Vitamin C on Common Cold: Randomized Controlled Trial. European Journal of Clinical Nutrition. 60: 9-17, 2006.
- Villamor, E. and Fawzi, W. Effects of Vitamin A Supplementation on Immune Response and Correlation with Clinical Outcomes. Clinical Microbiology Reviews. 18: 446-464, 2005.
- Hulisz D. Efficacy of zinc against common cold viruses: an overview. J Am Pharm Assoc. 44:594-603, 2004.
- Haase H, Mocchegiani E, Rink L. Correlation between zinc status and immune function in the elderly. Biogerontology. 7(5-6):421-8., 2006. Review.
- Haase H, Rink L. The immune system and the impact of zinc during aging. Immun Ageing. 12;6:9, 2009.
- Deluca H et al. Vitamin D: its role and uses in immunology. FASEB Journal. 15(14):2579-2585, 2001.
- Adorini L. Immunomodulatory effects of vitamin D receptor ligands in autoimmune diseases. International Immunopharmacology. 2(7):1017-1028, 2002.
- Cantorna M et al. Mounting evidence for vitamin D as an environmental factor affecting autoimmune disease prevalence. Experimental Biology and Medicine (Maywood). 229(11):1136-1142, 2004.
- Cantorna M. Vitamin D and autoimmunity: is vitamin D status an environmental factor affecting autoimmune disease prevalence? Society for Experimental Biology and Medicine. 223:230-233, 2000.
- Hayes C et al. The immunological functions of the vitamin D endocrine system. Cellular and Molecular Biology. 49(2):277-300, 2003.
- Garland C et al. The role of vitamin D in cancer prevention. American Journal of Public Health. 96(2):252-61, 2006.
- Giovannucci E et al. Prospective study of predictors of vitamin D status and cancer incidence and mortality in men. Journal of the National Cancer Institute. 98(7):451-459, 2006.
- Hall, S. and Greendale, G. The Relation of Dietary Vitamin C Intake to Bone Mineral Density: Results from the PEPI Study. Calcified Tissue International. 63: 183-189, 1998.
- Holick, M. Vitamin D: Importance in the Prevention of Cancers, Type 1 Diabetes, Heart Disease, and Osteoporosis. American Journal of Clinical Nutrition. 79: 362 – 371, 2004.
- Holick, M. Resurrection of Vitamin D Deficiency and Rickets. Journal of Clinical Investigation. 116: 2062-2072, 2006.
- Outila, T., et al. Vitamin D Status Affects Serum Parathyroid Hormone Concentrations during Winter in Female Adolescents: Associations with Forearm Bone Mineral Density. American Journal of Clinical Nutrition. 74: 206 – 210, 2001.
- Walrand S et al. Effect of vitamin D on skeletal muscle Geriatr Psychol Neuropsychiatr Vieil. 14(2):127-134, 2016.
- Dietrich, T., et al. Association between Serum Concentrations of 25-Hydroxyvitamin D and Gingival Inflammation. American Journal of Clinical Nutrition. 82: 575 – 580, 2005.
- Leggott, P., et al. Effects of Ascorbic Acid Depletion and Supplementation on Periodontal Health and Subgingival Microflora in Humans. Journal of Dental Research. 70: 1531-1536, 1991.
- Matsuda, T. and Toda, T. Effects of Vitamin B6 on Dental Caries in Rats. Journal of Dental Research. 46(6): 1460-1464, 1967.
- Pussinen, P., et al. Periodontitis Is Associated with a Low Concentration of Vitamin C in Plasma. Clinical and Vaccine Immunology. 10(5): 897 – 902, 2003.
- Hildebolt CF1. Effect of vitamin D and calcium on periodontitis. J Periodontol. 76(9):1576-87, 2005.
- Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium and Carotenoids. Washington, D.C.: National Academy Press; 2000.
- Henning S et al. Glutathione blood levels and other oxidant defense indexes in men fed diets low in vitamin C. Journal of Nutrition. 121:169-175, 1991.
- Johnston C et al. Vitamin C elevates red blood cell glutathione in healthy adults. American Journal of Clinical Nutrition. 58(1):103-105, 1993.
- Lenton K et al. Vitamin C augments lymphocyte glutathione in subjects with ascorbate deficiency. American Journal of Clinical Nutrition. 77(1):189-195, 2003.
- Frei B et al. Ascorbate is an outstanding antioxidant in human blood plasma. Proceedings of the National Academy of Sciences USA. 86(16):6377-6381, 1989.
- Kirsch M et al. Ascorbate is a potent antioxidant against peroxynitrite-induced oxidation reactions. Evidence that ascorbate acts by re-reducing substrate radicals produced by peroxynitrite. J Biol Chem. 275(22):16702-16708, 2000.
- Burton G et al. Vitamin E: Antioxidant activity, biokinetics, and bioavailability. Annual Review Nutrition. 10:357-382, 1992.
- Slyshenkov V et al. Pantothenic acid and pantothenol increase biosynthesis of glutathione by boosting cell energetics. FEBS Lett. 569(1-3):169-172, 2004.
Reviews
Customer Reviews
Displaying reviews 1 - 5 of 23
on
- Shop Consultant
Wouldnt skip it ever
Great multivitamin! Tastes great and ca. Be mixed with other vitamins to make a complete supplement. Take it every morning and gice to my husband as well!
Response from Customer Service:
December 2, 2020
Dear Valued Customer,
Thank you for taking the time to share your thoughts on the Isotonix Multivitamin Fifty Plus! We are happy to hear you are pleased with the product.
Thank you again!
The Product Information Team
on
- Shop Consultant
excellent nutrition
This is a very comprehensive product with everything I need as a more mature person. With the extra ingredients of enzymes, minerals, vitamins that we usually lose as we get older, it truly supplies and reenergizes for a feeling of cognizance, agility and general health. I take it daily. Very necessary to replenish those losses that occur starting at age 30!!
Response from Customer Service:
October 8, 2020
Dear Valued Customer,
Thank you for taking the time to share your thoughts on the Isotonix Multivitamin Fifty Plus! We are happy to hear you are pleased with the product.
Thank you again!
The Product Information Team
on
- Shop Consultant
Awesome Product!
Love the ability to mix with other Isotonix products and drink. Tastes great and feel the the difference!!
Response from Customer Service:
July 27, 2020
Dear Valued Customer,
Thank you for taking the time to share your thoughts on the Isotonix Multivitamin Fifty Plus! We are happy to hear you are pleased with the product.
Thank you again!
The Product Information Team
on
Thank you
Not sure how it’s going! I feel I need to take a little longer!
Response from Customer Service:
April 29, 2020
Dear Valued Customer,
Thank you for taking the time to leave your thoughts on the Isotonix Multivitamin Fifty Plus! We are confident that you will be pleased with the product!
Thank you again!
The Product Information Team
on
- Shop Consultant
This product is made to meet my needs
I am confident that my nutritional need are met with this product.
Response from Customer Service:
March 27, 2020
Dear Valued Customer,
Thank you for taking the time to leave your thoughts on the Isotonix Multivitamin Fifty Plus! We are happy to hear you are pleased with the product.
Thank you again!
The Product Information Team