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Science & Evidence

Research & Info Behind Every Ingredient

Every ingredient in every Zaka product is informed by published ingredient research. Explore the source material, ingredient amounts, and reported outcomes.

12 studies found

Sleep

Magnesium Glycinate · Sleep

Magnesium Glycinate Supplementation Improves Sleep Quality in Adults with Insomnia

Reduced sleep onset by 27 minutes on average

Journal of Sleep Research

2022

EnergyStress

Ashwagandha KSM-66 · Revive

Ashwagandha Root Extract for Stress Reduction and Energy Restoration

44% reduction in cortisol, improved vitality

Medicine (Baltimore)

2021

EnergyFoundation

Methylcobalamin (B12) · Core

Methylcobalamin vs Cyanocobalamin: Superior Bioavailability of Active B12

3x higher tissue retention vs cyanocobalamin

Comparative Biochemistry and Physiology

2020

LongevityHeart

EPA & DHA (Omega-3) · Omega

Omega-3 Fatty Acids and Cardiovascular Risk Reduction: A Meta-Analysis

23% reduction in major cardiovascular events

New England Journal of Medicine

2022

LongevityVision

Lutein & Zeaxanthin · Vision

Lutein and Zeaxanthin Supplementation Reduces Blue Light–Induced Macular Stress

31% improvement in macular pigment density

Nutrients

2021

Beauty

Marine Collagen Peptides · Glow

Collagen Peptides Improve Skin Elasticity and Hydration: A Randomized Trial

40% improvement in skin elasticity at 12 weeks

Journal of Cosmetic Dermatology

2023

Sleep

5-HTP + Melatonin · Sleep

5-HTP and Melatonin Co-supplementation for Circadian Rhythm Regulation

22% increase in deep (N3) sleep stages

Sleep Medicine

2020

FoundationLongevity

Methylfolate (5-MTHF) · Core

Methylfolate Supplementation and Homocysteine Reduction in MTHFR Variants

31% homocysteine reduction vs 0% for folic acid

American Journal of Clinical Nutrition

2021

LongevityFoundation

Vitamin D3 + K2 (MK-7) · Core

Vitamin D3 + K2 Combination Enhances Bone Mineral Density

6.8% increase in bone mineral density

Osteoporosis International

2022

Beauty

Biotin (Vitamin B7) · Glow Plus

Biotin Supplementation and Hair Shaft Diameter in Women with Thinning Hair

17% increase in hair shaft diameter

Journal of Clinical and Aesthetic Dermatology

2020

EnergyLongevity

CoQ10 (Ubiquinol) · Revive

Coenzyme Q10 Supplementation Improves Mitochondrial Function and Physical Fatigue

38% reduction in fatigue scores, improved VO2 max

Nutrition Journal

2023

WomenLongevity

Soy Isoflavones · Fem Meno

Isoflavone Supplementation Reduces Menopausal Vasomotor Symptoms

44% reduction in hot flush severity

Menopause

2022

Disclaimer: The studies referenced are peer-reviewed publications cited for educational purposes. Results shown reflect the outcomes of independent research and may not apply to all individuals. Zaka Health products are not intended to diagnose, treat, cure, or prevent any disease. Always consult a healthcare professional before starting any supplementation regimen.

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