Oct 28 / Star Khechara

Juicing for Healthy Skin: Evidence-Based Strategies for Practitioners

Clinical Juicing: Elevating Nutrition, Health and Skin from the Inside Out

Juicing has long been celebrated for its health benefits, but within professional nutrition and beauty practice, it’s gaining renewed attention as a clinical dietary intervention. For health, skincare and wellness practitioners, understanding the science of juicing and how it supports both systemic and skin health is an invaluable tool in client transformation.

Juicing in Clinical Contexts

In clinical nutrition, juicing can serve a very practical function, especially in cases where fibre must be restricted. Low-residue diets are often prescribed for individuals with gastrointestinal disorders such as Crohn’s disease or colitis. These patients cannot tolerate high-fibre foods, meaning that most fruits, vegetables and whole grains are off the table.

However, freshly pressed fruit and vegetable juices offer a way to deliver high concentrations of vitamins, minerals and phytonutrients without fibre, supporting healing while maintaining nutritional adequacy. Even beyond clinical needs, juicing can be beneficial for clients who experience IBS or fibre sensitivity, helping them to absorb nutrients without aggravating symptoms.
...the 3-day vegetable/fruit juice-based diet induced
significant changes in the intestinal microbiota which
were associated with weight loss. The juice- based
diet also significantly increased serum and urine NO
and decreased a marker of lipid oxidation
Plants, 11(1) 2021

Correcting Invisible Deficiencies

Many people live with subclinical deficiencies, nutrient shortfalls that have not yet manifested as overt symptoms. Modern diets, high in processed foods and animal products but low in plants, often lack essential micronutrients.

Juicing can help address this problem in three ways:

  • It breaks down plant cell walls, improving nutrient bioavailability.
  • It naturally increases dietary diversity, often including 3–7 different fruits and vegetables in a single glass.
  • It makes it easier for clients to consume nutrient-dense foods they might otherwise avoid.

Research supports this approach: studies show that regular juice consumers tend to have higher intakes of vitamin C, potassium, folate and carotenoids, along with lower intakes of saturated fats and added sugars.

Juice nutrition facts

  1. In adults, fruit juice contributes 19%-24% of their daily Vitamin C intake
  2. Drinking orange juice for 25days increased carotenoid status by 10%–15% (depending on starting values)
  3. The FDOC reported that intake of vitamin C declined 23% between 1999 and 2018, driven by decreases in consumption of 100% fruit juice.
  4. 100% fruit juice is associated with increased intakes of nutrients such as vitamin C, folate, and potassium
Compared with nonconsumers, the overall nutritional profile of those consuming 100% juice had significantly higher intakes of energy, carbohydrates, vitamins C and B6, potassium, riboflavin, magnesium, iron, and folate and significantly lower intakes of total fat, saturated fatty acids, discretionary fat, and added sugar.
Pediatrics 162(6) 2008

How Juicing Boosts Variety and Compliance

Despite public health campaigns, most adults fail to meet daily fruit and vegetable intake recommendations. Juicing provides an effective way to bridge that gap. It encourages greater plant diversity, even including less popular but highly beneficial ingredients such as leafy greens, beetroot, or cabbage.

For clients who “don’t like vegetables”, blending sweet fruits with bitter greens (like apples and spinach, or melon with kale) can overcome taste aversions, increasing plant-based nutrient intake without resistance. This is particularly valuable for practitioners helping clients shift towards more nutrient-dense diets.

Juice Nutrition to Skin Health

For beauty and skincare professionals, the nutritional power of juicing extends to skin health. The vitamins, minerals and antioxidants in fresh juices directly influence the skin’s structure and resilience. Vitamin C supports collagen synthesis, carotenoids enhance natural radiance and protect against oxidative stress and polyphenols from colourful plants reduce inflammation and oxidative damage at the cellular level.

By improving gut health and reducing systemic inflammation, juicing indirectly promotes a clearer, more vibrant complexion, an approach that embodies the “inside-out” philosophy of beauty nutrition.
Observational studies tend to show that fruit juice consumption is typically associated with higher nutrient density or better-quality diets, when compared with diets where FJ is not consumed, or only at low levels
Nutrients 13(6) 2021

Guidelines for Practitioners

For practitioners, clinical juicing is more than a wellness trend; it’s a strategic nutritional intervention that:

  • Supports clients with digestive sensitivities or inflammatory conditions.
  • Corrects nutrient deficiencies common in modern diets.
  • Enhances dietary variety and compliance.
  • Promotes glowing skin and whole-body vitality through improved cellular nutrition.

Integrating juicing into client protocols offers a practical, evidence-informed way to connect health, nutrition and beauty. After all, when it comes to optimal wellness and skin function, what’s inside truly shows on the outside.
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References

  1. https://www.gastroclinic.com/diets/low-residue-diet/
  2. https://www.thh.nhs.uk/documents/_Patients/PatientLeaflets/dietetics/
  3. Low_Residue_Diet.pdf
  4. Perri, M., Romano, C., Marrelli, M., Zicarelli, L., Toma, C., Basta, D., Conforti, F., & Statti, G. (2021). Beneficial Role of Fruits, Their Juices, and Freeze-Dried Powders on Inflammatory Bowel Disease and Related Dysbiosis. Plants, 11(1)
  5. Ruxton, C., & Myers, M. (2021). Fruit Juices: Are They Helpful or Harmful? An Evidence Review. Nutrients, 13(6),Nicklas, T., O’Neil, C., & Kleinman, R. (2008). Association Between 100% Juice Consumption and Nutrient Intake and Weight of Children Aged 2 to 11 Years. JAMA Pediatrics, 162(6), 557-565.
  6. Benton, .D., & Young, H.A. (2019). Role of fruit juice in achieving the 5-a-day recommendation for fruit and vegetable intake. Nutrition Reviews, 77(11)
  7. Shenoy, S., Kazaks, A., Holt, R., Chen, H., Winters, B., Khoo, C., Poston, W., Haddock, C., Reeves, R., Foreyt, J., Gershwin, M., & Keen, C. (2010). The use of a commercial vegetable juice as a practical means to increase vegetable intake: a randomized controlled trial. Nutrition Journal, 9, 38-38.
  8. https://citrusindustry.net/2022/02/10/fruit-and-vegetable-consumption-severely-lacking-in-u-s-adults/
  9. Byrd‐Bredbenner, C., Ferruzzi, M., Fulgoni, V., Murray, R., Pivonka, E., & Wallace, T. (2017). Satisfying America's Fruit Gap: Summary of an Expert Roundtable on the Role of 100% Fruit Juice. Journal of Food Science, 82(7), 1523-1534
  10. .Lee SH, Moore LV, Park S, Harris DM, Blanck HM. Adults Meeting Fruit and Vegetable Intake Recommendations — United States 2019. MMWR Morb Mortal Wkly Rep 2022;71:1–9
  11. https://www.gov.uk/government/news/phe-publishes-latest-data-on-nations-diet 

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Article by Star Khechara

Professional agehacker, author, speaker, founder of skin nutrition institute
About me
Ex-skincare formulator and beauty author turned skin-nutrition educator: Star distilled her 20+ years of skin-health knowledge into the world’s first international accredited skin-nutrition school to teach skin therapists, facialists, face yoga practitioners and estheticians how to help their clients feed the skin from within for cellular-level rejuvenation and vibrant beauty. 
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