We've had a hunch for over 15 years, and it's this: seven days is enough to genuinely change how you feel, from your gut to your sleep to your mood. Over 50,000 people have completed a Clean reset since 2009, and the feedback has always sounded the same: better sleep, a flatter stomach, a clearer head, and that familiar line, "I feel like myself again."

But a hunch isn't data, so this year we did something we've never done before. We asked Citrus Labs, an independent research group, to run a consumer perception study on Clean 7, our signature 7-day gut health reset, and measure exactly what participants experienced, day by day, in their own words and their own numbers.

Forty adults signed up, and thirty-seven finished. Here's everything we found.

What Is a Consumer Perception Study, Anyway?

Before we get to the good stuff, we want you to know exactly what you're looking at.

A consumer perception study isn't the same thing as a randomized clinical trial with a placebo control group, and we're not going to pretend it is. What it is: a structured way of capturing how real people rate their own wellness, using validated self-report scales, before and after a program. Participants rated themselves on a 1–10 scale across five wellness domains at Day 0 (baseline) and again at Day 7, then answered a set of yes/no and agree/disagree questions about their experience.

It's real-world evidence from real people doing the actual 7-day detox program at home, not a lab simulation. That's what makes it useful, and it's also why we want to be upfront that individual results vary and statistical significance wasn't formally calculated.

The setup, in brief:

• Who: 40 adults, ages 18–65, with self-reported concerns around sleep, digestion, energy, mood, or weight
• What: The full Clean 7 protocol, including the organic plant-based cleanse shake, Ayurvedic supplement capsules, Tulsi Wellness Tea, Golden Turmeric Latte, the Clean Elimination Diet, and a progressive intermittent fasting window
• Duration: 7 days, from baseline to final assessment
• Completion: 37 of 40 participants, a 92.5% completion rate
• Run by: Citrus Labs, May 2026

The Results: Every Single Wellness Score Went Up

This is the part we're most excited to share. All five wellness domains improved from Day 0 to Day 7, and by a meaningful margin.

A few things stand out here. Energy had the biggest relative jump of any category, a 74% improvement, which lines up with what we hear constantly from Clean 7 customers about that "second wind" feeling that shows up in the back half of the week. Digestion posted the highest absolute score at Day 7 (7.4/10), which makes sense given how directly the protocol targets gut function. And even mood, which started from the highest baseline of the group, still climbed 44% by the end.

Zoom out, and the takeaway is simple: no domain regressed. Every single wellness metric moved in the right direction, for the group as a whole, over just seven days.

Beyond the Numbers: What Participants Actually Said

Numbers are great, but we also wanted to know how people felt about their experience, so participants answered a set of direct agree/disagree and yes/no questions at Day 7.

Here's what came back:

• 91.89% reported weight loss during the 7-day reset
• 83.78% felt better overall by Day 7
• 81.08% felt more in control of their appetite
• 81.08% reported more regular bowel movements
• 81.08% reported a more balanced mood
• 78.38% were satisfied with the program results
• 72.97% felt more energized and less tired by Day 7

Put another way, 22 of 24 tracked wellness parameters hit at least a 50% positive response rate by Day 7, and none moved backward. For a 7-day reset program, that's a remarkably consistent signal across sleep, digestion, energy, mood, appetite control, and how people felt in their bodies.

Why These Results Matter

Here's what we think is the most important part of this whole study, and it's not just that the numbers went up. It's that they all went up together.

That's not a coincidence, and it's actually the whole point of how Clean 7 is designed. Functional Medicine looks at the body as a set of connected systems rather than a list of separate symptoms to treat one at a time. Poor sleep, low energy, digestive discomfort, mood swings, and stubborn weight often look like unrelated problems, but they frequently trace back to the same root cause: a gut and a detoxification system that's overloaded and never gets a real break.

Think about how most of us actually eat. Constant snacking, inflammatory processed foods, and meals stacked on top of meals with barely a pause in between keep the digestive system working around the clock. There's rarely a window for repair, so the whole system stays in a low-grade state of stress, and that stress ripples outward into sleep, mood, energy, and how you feel in your own skin.

Clean 7 works by giving your body that window.

We call it REMOVE + RESTORE = REJUVENATE.

REMOVE. The Clean Elimination Diet takes out common inflammatory trigger foods, and the progressive fasting protocol gives your digestive system real rest for the first time in a long time, sometimes ever.

RESTORE. With that space created, Ayurvedic herbs, a multi-strain probiotic, and targeted nutrition go to work supporting your gut wall, your liver, your microbiome, and your nervous system.

REJUVENATE. Once digestion, inflammation, and stress hormones start moving in a healthier direction together, the rest of the body follows. Sleep deepens, energy returns, mood stabilizes, and appetite regulates itself. That's why this study shows improvement across every single domain instead of just one or two. When you support the system at the root, the effects show up everywhere the root touches.

Why It Works: The Science Behind Clean 7

Clean 7 isn't a fad diet or a juice cleanse. It's a precision protocol that layers three disciplines on top of each other, with each one doing a job the others can't.

Functional Medicine. The Clean Elimination Diet removes common inflammatory trigger foods, giving your gut wall, liver, and immune system room to recalibrate.

Ayurvedic Science. Adaptogenic herbs, including Tulsi, Triphala, Ashwagandha, and Turmeric, go to work on stress, digestion, and inflammation, personalized to you through an online dosha quiz.

Intermittent Fasting. A progressive fasting window (12, then 14, 16, 24, 18, and finally 13 hours across the week) gives your digestive system real rest, redirecting energy toward cellular repair instead of nonstop digestion. The mid-week 24-hour fast is the biggest lever in the whole program.

A few key ingredients are worth knowing about, since the research keeps pointing back to them:

• Ashwagandha helps regulate cortisol and ease stress-related digestive symptoms like bloating and indigestion.
• Triphala + Tulsi is a centuries-old Ayurvedic pairing that supports regularity and a balanced gut microbiome.
• Turmeric (Curcumin) is an antioxidant that supports liver detox and healthy inflammation levels.
• 10B CFU Multi-Strain Probiotic, built into the daily shake, supports microbiome diversity using a fermented, pre-digested protein for higher bioavailability.

This is the gut-brain connection in action. When digestion, inflammation, and stress hormones move in a healthier direction together, sleep, mood, and energy tend to follow. That's the whole premise behind Dr. Alejandro Junger's approach to gut health, and it's the mechanism this study was designed to test.

Your Week, Day by Day

Here's what the protocol actually looks like in practice.

Day 1: The program begins with a 12-hour fast. Inflammatory foods come out of the diet, and digestive rest begins.

Day 2: A 14-hour fast. Triphala and probiotics start working on regularity, and many participants report less bloating within 48 hours.

Day 3: A 16-hour fast. Energy starts to shift as the body redirects resources from digestion toward repair.

Day 4: The peak, with a 24-hour fast. This is the biggest detoxification window of the week, and Ashwagandha helps manage the stress response that comes with it.

Day 5: An 18-hour fast. Appetite regulation kicks in as hunger hormones begin to stabilize.

Day 6: A 13-hour fast. Sleep quality improves as inflammation drops and cortisol comes down.

Day 7: Final assessment day, when the numbers above were captured.

Was It Safe? Was It Easy?

Short answer: yes, on both counts. No serious adverse events were reported over the course of the study, and the 92.5% completion rate speaks for itself. Thirty-seven of forty participants stuck with the full protocol, which is a strong tolerability signal on its own. The progressive fasting structure, starting gentle at 12 hours instead of jumping straight into a hard fast, is designed specifically to make the week achievable rather than punishing.

As always, talk to your healthcare provider before starting Clean 7 or any new wellness program, especially if you're pregnant, nursing, or managing a pre-existing condition.

What This Study Confirms (That We Already Knew)

We didn't need this study to believe Clean 7 works. Over 50,000 people have completed Clean 7 since 2009, and the stories haven't changed: people finish the week sleeping better, moving more comfortably, thinking more clearly, and feeling lighter in every sense of the word.

What this study gives us is something we've never had before: structured, measured, independently-run data that confirms what tens of thousands of customers have been telling us all along. The numbers didn't surprise us, they just made it official.

Frequently Asked Questions

Who is Clean 7 designed for?

Adults 18–65 looking for a structured 7-day reset, especially those dealing with self-reported concerns around sleep, digestion, energy, mood, or weight. That's the exact group this study enrolled.

What's included in the program?

A daily organic plant-based cleanse shake (10g protein, 10B CFU probiotic), Ayurvedic supplement capsules (Tulsi + Triphala, Ashwagandha, Turmeric), Tulsi Wellness Tea, and a Golden Turmeric Latte, combined with the Clean Elimination Diet and the progressive fasting protocol.

Is this the same as a clinical trial?

No, and we want to be clear about that. This is a consumer perception study, meaning it captures how real participants rated their own experience using validated scales, rather than testing against a placebo in a controlled lab setting. It's real-world evidence rather than a substitute for clinical research, but it's meaningful evidence nonetheless.

Why does the fasting window matter so much?

Fasting gives your digestive system a break, freeing up energy for cellular repair and detoxification instead. The progressive structure, starting at 12 hours and building to 24, lets your body adapt gradually, which is a big part of why the completion rate was so high.

What results can I expect?

Everyone is different. Results depend on your starting point, how closely you follow the protocol, and your individual physiology. What the study shows is a consistent directional improvement across sleep, digestion, energy, mood, and body confidence for the group as a whole, though your personal experience may vary.

Ready to see what 7 days can do for you?

Shop Clean 7

This post summarizes results from a 7-day consumer perception study conducted in May 2026 by Citrus Labs (N=40 enrolled, 37 completed it). Results are based on self-reported participant data using 1–10 numerical scales and Likert agree/disagree statements. This is a consumer perception study, not a randomized controlled clinical trial; statistical significance was not formally calculated, and individual results may vary. These statements have not been evaluated by the Food and Drug Administration. Clean 7 is not intended to diagnose, treat, cure, or prevent any disease. Consult your physician before beginning any new supplement or wellness program.