Getting Sick? Better Take Core Vitamin C 1000!


The results you achieve in the gym are underscored by how healthy you are. If you have a weakened immune system and are fighting a cold, you won’t make the progress you planned to. When it comes to your immune system, vitamin C is one of the most important vitamins you can take. Yet it may be lacking in the supplement regimen of many 5%ers. Don’t take chances, especially now that we’re in the cold & flu season. Getting sick? Better Take 5% Nutrition Core Vitamin C 1000!

The Benefits Of Vitamin C

Vitamin C has an impressive list of benefits. These include:

It’s A Potent Antioxidant

An antioxidant is a compound that supports good health by combatting free radicals. If ignored, they can cause a lot of problems. As an antioxidant, vitamin C enhances the body’s natural defenses against free radicals.(1,2)

Enhances Immune System Health

Vitamin C is well-known for its role in supporting immune system health. Along with its antioxidant benefits, it supports white blood cell production. This helps protect the body against infection. The combination of vitamin C’s antioxidant and immune system benefits gives you the protection you need no matter what time of year it is.(3)

Promotes Production Of Collagen

One of the most important functions of vitamin C is its part in the synthesis of collagen. For those that may not know, collagen is the most abundant protein in the body. It’s the protein used for bone, hair, skin, nails, and connective tissue. Among other benefits, collagen provides structural support to the tissues of the body.(4)

Supports Dopamine Production

Vitamin C is an important component in dopamine production. Dopamine is the neurotransmitter that promotes mood and motivation. Your workout and your day will go better with an enhanced mood. Plus, increased motivation means a greater desire to train hard.(5)

Promotes Nitric Oxide Production

Vitamin C plays a role in the production of nitric oxide. It does this by increasing the activity of the enzyme (endothelial nitric oxide synthase, or eNOS). That’s the enzyme that accelerates nitric oxide production. That means better pumps and improved nutrient delivery to the muscles.(6)

Core Vitamin C 1000 - Not Just Another Simple Formula!

5% Nutrition Core Vitamin C 1000 goes beyond other “Core” products by including supporting ingredients. Who else but 5% does that? 

One serving (2 capsules) provides:

Vitamin C - 1g

Vitamin C is a water-soluble vitamin. It’s not made by the body and must come from your diet and supplements.(7)

Citrus Bioflavonoids 50% - 10mg

This is a compound found in the rind of citrus fruits, rose hips, and black currants. Bioflavonoids enhance the effectiveness of Vitamin C.(8)

Zinc Citrate - 10mg

Zinc is an essential mineral that has a wide range of benefits. Like Vitamin C, Zinc supports immune system health. It’s also involved in protein metabolism and testosterone production. Those reasons make it an essential part of this innovative formula.(9)


  1. Alessio, H. M., Goldfarb, A. H., & Cao, G. (1997). Exercise-Induced Oxidative Stress before and after Vitamin C Supplementation, International Journal of Sports Nutrition, 7(1), 1-9.
  2. Pham-Huy LA, He H, Pham-Huy C. Free radicals, antioxidants in disease and health. Int J Biomed Sci. 2008;4(2):89-96
  3. Huijskens MJ, Walczak M, Koller N, et al. Technical advance: ascorbic acid induces development of double-positive T cells from human hematopoietic stem cells in the absence of stromal cells. J Leukoc Biol. 2014;96(6):1165-1175. doi:10.1189/jlb.1TA0214-121RR
  4. Dayan, N. (2008). Skin aging handbook: An integrated approach to biochemistry and product development. William Andrew Pub.
  5. Harrison, F.E., & May, J.M. (2009). Vitamin C function in the brain: vital role of the ascorbate transporter SVCT2. Free Radical Biology and Medicine, 46(6), 719-30.
  6. d'Uscio LV, Milstien S, Richardson D, Smith L, Katusic ZS. Long-term vitamin C treatment increases vascular tetrahydrobiopterin levels and nitric oxide synthase activity. Circ Res. 2003;92(1):88-95. doi:10.1161/01.res.0000049166.33035.62
  7.  Vitamin C - Mayo Clinic
  8. Bioflavonoids Uses, Side Effects & Warnings -
  9. Zinc - Mayo Clinic
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