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Evidence-Based. Habit-Focused. Credentialed. No Extreme Programs.

The information you need. The research to back it up.

Credentialed health and wellness resources for adults who want to feel better, move better, and understand what the research actually says.

From the Resource Hub

Writing worth your time

Evidence-based articles on movement, chronic disease, nutrition, public health, and wellness. Published every other week.

Knowledge Base

The Evolution of Wellness Resource Hub

Evidence-based health and wellness knowledge for adults who want to feel better, move better, and understand what is actually happening in their bodies. Organized by topic. Grounded in research. Written by someone with the credentials to back it up.

Movement

Movement and Injury Prevention

How the body moves, why injuries happen, and how to build resilience through intentional movement.

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Fitness

Strength Training and Fitness

What the research says about strength training as a foundation of long-term health, not just for athletes.

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Prevention

Chronic Disease Prevention

How daily habits, environment, and biology interact to create or prevent chronic disease over a lifetime.

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Public Health

Public Health and Systems

How the world around you shapes your health in ways that go beyond individual choices.

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Nutrition

Nutrition Basics

What the evidence actually supports about food and eating habits, without the noise of diet culture.

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Supplements

Supplements and Products

What the research says about common supplements, and what it does not say. No recommendations. Just the evidence.

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Mental Health

Mental Health and Wellbeing

The connections between physical health, mental health, stress, and daily habits.

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Organizations

Program Evaluation and Organizational Health

How organizations can assess whether their health and wellness programs are actually working.

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Explore the full resource hub →

Professional Services

Evidence-based health expertise for hire

An outside check on claims, content, or programs, without adding headcount. Project-based work for teams who want a second opinion but do not have spare internal capacity to act on it.

Writing

Health and Wellness Writing

Research-backed health content from someone with graduate-level public health training and clinical experience.

From $750 →

Review

Health Content Review

A credentialed accuracy review of existing health content before it goes live.

From $300 →

Research

Supplement Research Brief

Structured evidence analysis of supplement ingredients before you build a product or campaign around them.

From $500 →

Evaluation

Health Program Evaluation

Formal evaluation of whether your wellness program is producing measurable results for the people it serves.

From $1,200 →

Assessment

Movement and Wellness Assessment

Practical written movement guidance for generally healthy adults from someone with clinical rehabilitation and personal training experience.

$350 flat →

Not sure which service fits?

Describe your project and Marcus will point you in the right direction.

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Looking for in-person personal training or small group workshops? Marcus Clark Training handles that separately.

Visit marcusclarktraining.com →

Personal Recommendations

What I Use

Products I personally use and recommend. No sponsorships. No products I have not tried.

Nutrition and Training

Momentous

Third-party tested protein and creatine from a brand used by professional sports teams and designed to clinical standards. No proprietary blends, no shortcuts.

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Footwear

VIVOBAREFOOT

I switched to barefoot shoes a while back and it genuinely changed how I move. Wider toe box, better ground contact, stronger foot muscles over time. I wear them for training and daily use.

Shop VIVOBAREFOOT

No discount code currently available

Some links on this page are affiliate links. I may earn a small commission if you purchase through them at no extra cost to you.

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Evidence-based health and wellness resources from someone with the credentials to back it up. Written by Marcus Clark MPH.

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Marcus Clark MPH Lean Six Sigma Green Belt

About the Author

Credentialed. Clinical. Practical.

MPH
Lean Six Sigma Green Belt
Clinical Rehabilitation
Personal Training
Healthcare Administration
Behavioral Health Programs
Public Health Research

Evolution of Wellness exists for one reason: most health content is either too academic to act on or too vague to trust. Marcus Clark brings a public health and clinical background to health resources and professional services that are specific, evidence-based, and built for real people navigating real constraints.

Every piece of content here evolves with the research. No extreme programs. No filler.

3 in 4

American adults have at least one chronic condition. Over half have two or more.

CDC · 2025

$5.3T

90% of annual US healthcare spending goes to people with chronic and mental health conditions.

CDC · 2025

80%

of chronic disease is driven by four modifiable behaviors: poor nutrition, physical inactivity, smoking, and excessive alcohol use.

CDC · Chronic Disease Prevention

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