Feeling the Zeal difference means different things to different people.
But now a clinical study backs up that there definitely is a Zeal difference. Recent clinical trial results from
independent third-party research firm KGK Synergize* confirm that the positive benefits of drinking Zeal include
improved mood, stronger vigor and vitality, and less anxiety and fatigue. Under the highest scientific standards,
the study was conducted on healthy and active people not trying to improve mood or enhance their current
health. Yet, after just 28 days of drinking Zeal twice a day, 85% felt better. The difference was significant.
The objective of this study was to investigate the effect of Zeal on
healthy, moderately stressed adults using standardized measures of
mood states, including overall feelings of vitality.
The study design called for 100 healthy, moderately stressed adults
with 25 participants randomized equally to each of the 4 study arms in a
Definition of the Study Populations:
The Per Protocol Population consisted of 84 of the 99 participants
who actually started the trial and who did not have any major protocol
violations, and completed all study visits and procedures connected with
measurement of the primary variable.
These eighty-four participants were analyzed in the “Per Protocol”
Population, with 21 participants in the Zeal once daily group, 20
participants in the Zeal twice daily group, 23 participants in the Placebo
once daily group, and 20 participants in the placebo twice daily group.
DEMOGRAPHICS AT SCREENING:
Ninety-nine participants with an age range of 18 – 65 years and a
BMI of 18.4 – 30.1 kg/m2 were enrolled in this study. Participants
were predominantly Caucasian and non-smokers with 62% females
and 38% males. All participants were deemed healthy by physical
examination and as per their screening laboratory parameters.
The stress levels of participants, based on the Stress/Vitality
questionnaire confirmed that they were moderately stressed. 71%
percent of the participants confirmed self-reported moderate stress.
81% self-reported ups and downs in energy level and 65% were tired
by mid-afternoon during the day. Forty percent did not engage in any
exercise while 38% were engaged in moderate levels of exercise.
88% were non-smokers and 52% were light alcohol drinkers (≤ 1
drink/week). 30% of the participants were married and 68% did not
have children. 53% worked full time while 23% were either seeking
employment or were unemployed. 36% percent consumed a typical
American diet, 87% did not take supplements and 79% consumed
caffeine in the form of coffee (54%).
Compliance with the study protocol in all groups were >90%.
LOCATION OF THE STUDY PARTICIPANTS:
All subjects were recruited from the Orlando, Florida metropolitan area
and the study was completed prior to any of the recent occurrences in
the Orlando area.
KEY POINTS REGARDING THE ANALYSIS OF THE RESULTS:
Based on the results of the two placebo groups, they were combined in
order to gain additional statistical power.
The results of this analysis were provided both by the results of the
intent-to treat and the per-protocol analysis. However, this summary
focuses on the 2-day Zeal results to be consistent with the use
recommendations of Zurvita. An extension of the POMS, the POMS
Iceberg profile, designed for assessing active/healthy individuals was
OVERALL CONCLUSIONS OF THE STUDY:
Zeal at a dose of 28 grams per day, consumed as two doses of 14
grams, one in the morning and one mid-afternoon, signficantly improved
mood states and reduced stress levels within 29 days in moderately
stressed but otherwise healthy individuals. This “Gold Standard”
randomized double-blind, placebo-controlled clinical study scientifically
validated Zeal in a healthy population by testing the efficacy of the
product using proven research tools that test mood states.
Though this study had a 16% placebo effect, statistically significant
improvements in Profile of Mood State-Total Mood Disturbance were
achieved compared to a combined Placebo group. Participants reported
a significant decrease of approximately 7% in the POMS-TMD and its
subdomain, Anger and Hostility compared to the combined Placebo
when they consumed 28 g of Zeal daily in two separate doses, one in the
morning and one mid-afternoon.
2-dose Zeal improved the POMS Iceberg profile with a significant within
group increase in Vigor and Activity. This improvement was associated
with a significant within group decrease in the POMS subdomains of
Tension and Anxiety, Despondency and Dejection, Anger
and Hostility, Fatigue and Inertia, Confusion and Bewilderment.
Rejuvenation of mood states, particularly reductions in anxiety and
despondency in this study corroborates earlier investigations into the
anxiolytic and mood supporting properties of multiple food derived
ingredients in the Zeal formulation, including Maca (Lepidium meyenii)
(Stojanovska L et al., 2015) and grape seed extract (Terauchi M et al.,
Importantly, the safety and efficacy profile of Zeal in this study
strengthens evidence for its use in a healthy population to address