This time, it’s personal

Keyspan decodes your body’s unique data and creates a plan that’s just right for you.

Years ago, our founder faced a health crisis. Frustrated with the limitations of his family doctor, he dove into the complex world of preventative care. It was intimidating and expensive, and there didn’t seem to be a straightforward solution. He eventually got the help he needed, but it was a huge investment in time, money and energy.

Keyspan was created so you won’t struggle with generic advice, pricey treatments, and figuring it out on your own. We put the science, support, and expertise you need in one place so you can live a happy, healthy life.

Our platform brings the science of longevity, and the expertise of functional health coaches directly to you, simplifying the journey to better health — moving you from “just fine” to optimal.

Why Keyspan

A more effective path to wellness

Preventive care Included Included Not included
Lifestyle & nutrition change Included Included Not included
Custom supplements Included Not included Not included
1:1 health coach Included Included Not included
30-60 min video sessions Included Not included Included
Precision supplements Included Not included Not included
Specialty lab testing Included Included Not included
Unlimited messaging in app Included Not included Not included
Affordable Included Not included Not included

Business & Clinical Leadership

Your very own dream team

Meet the people you need to lead your healthiest, happiest life. Our clinical experts will get you from okay to optimal—no matter your starting point.

  • Nate Taylor

    Founder & CEO

    Nate Taylor

  • Murdoc Khalegi

    MD, Chief Medical Officer

    Murdoc Khalegi

  • Jen Katz

    Clinical Director, CFNC, CDP, Functional Nutritionist

    Jen Katz

  • Kellye Woods

    Head of Health Coaching

    Kellye Woods

  • Jo Vos

    Advisor

    Jo Vos

  • Jani Tuomi

    Advisor

    Jani Tuomi

Hey Kai — I’ve been waking up exhausted even after 8 hours of sleep, and my afternoon energy crashes have been getting worse lately. Could this be connected to my cortisol, iron, or blood sugar markers, and what changes would you prioritize first?

thinking...

Kai

Your AI Health Guide

Powered by your biomarkers, wearable data, and daily habits

Kai turns complex health data into clear daily guidance — helping you know what to eat, how to train, when to recover, and which supplements support your progress.

Try Kai free for 7 days

Intelligence.Secured.

With KeySpan, you don't just improve how you feel today — you build the foundation for long-term vitality, longevity, and everyday performance.

What is Keyspan?
Keyspan was conceived with a clear vision: to empower people to achieve prolonged, vibrant health. We transform the often complex process of health optimization into a personalized, simplified, and fun journey to fast-track your health with ease.
How does a Keyspan membership work?
Keyspan membership costs: Monthly: $199/month Annual: $1999/year ($167 per month), and includes the following: A comprehensive Baseline Blood Test, personalized diet, lifestyle, supplement and exercise plans, blood draws every 6 months and one-on-one health coaching. It also includes monthly deliveries of personalized supplements, along with continuous monitoring, support, and reminders via the Keyspan app.
Who is Keyspan for?
Keyspan is designed for anyone committed to optimizing their health. Whether you're aiming for improved mental and physical performance, weight loss, stress reduction, better sleep, or even prevention of chronic diseases. Our goal is to empower you with personalized insights and tools to achieve and maintain optimal health. To subscribe to Keyspan you must be over 18 years of age, live in the United States, and have an Android or iPhone in order to access the app.
What are the benefits of membership?
Being a Keyspan member means: Better Health: Our scientifically-backed plans help improve your everyday health and performance. You'll notice real changes that make a big difference. Simplicity: Don't get lost in the world of supplements. We figure out what's best for you based on nutrition gaps and deliver it to your door. You save time and avoid confusion. Personal Coaching: You get your own health coach. They help review your results, set goals, and create highly tailored plans based on your unique biochemistry. You can schedule 1:1s with them anytime through our app. Staying on Track: Through ongoing at-home testing, and with our app, you can easily see your progress and get smart reminders to help you build healthy habits. Two essential tools to keep you moving towards your health goals. Community: We have an incredible community of people on the platform to connect with. Not to mention events
What biomarkers do you test?
Blood biomarkers offer a crucial understanding of your metabolic health and nutritional condition, assisting in identifying potential nutrient deficiencies and disease risk. At Keyspan, we examine the following: Baseline test for men: Glucose, Hemoglobin A1c, Cholesterol, HDL, LDL, Triglycerides, ApoB, Calcium, Vitamin D, Testosterone, Cortisol, Albumin, Magnesium, Folate, Vitamin B12, RDW, Iron, Hemoglobin, Potassium, CRP, Homocysteine, GGT, AST, ALT. Baseline test for women: Glucose, Hemoglobin A1c, Cholesterol, HDL, LDL, Triglycerides, ApoB, Calcium, Vitamin D, Testosterone, Cortisol, Albumin, Magnesium, Folate, Vitamin B12, RDW, Iron, Hemoglobin, Potassium, CRP, Homocysteine, GGT, AST, ALT, Estradiol and TSH (Thyroid). Initial blood draws are collected at home (or a place of your choosing) with a mobile phlebotomist. At the 6 month mark, we do another followup blood draw to fine tune the plan.
Is Keyspan comprehensive for women & men’s health?
We cater to the distinct metabolic and hormonal differences between men and women, this way plans and recommendations can be further tailored to the individual based on their unique physiology.
What’s Keyspan’s methodology for ranges? How does this differ from what I might find elsewhere?
Our method for ranges is to shift the range of western medical “normal” to a more functional range, flagging on-edge biomarkers as opportunities to prevent reds. Western medical range samples are taken from the majority, not from the healthy.
Why is my first month $299 if I live in NY/NJ/RI?
Due to state-specific costs, customers in NY, NJ, and RI pay a one-time additional fee during their first month. This fee covers additional regulatory and logistical costs. After the first month, your subscription is the standard $199/month.
What is Truemed?
Truemed makes it easy to use your Health Savings Account (HSA) or Flexible Spending Account (FSA) dollars for Keyspan products and services. They handle the paperwork, including Letters of Medical Necessity (LMNs), so you can save money by using pre-tax dollars.
Can I use my HSA or FSA to pay for Keyspan?
Yes! Everything Keyspan offers is eligible for HSA/FSA spending.

Direct Payment: You can pay directly with your HSA/FSA card at checkout.

LMN Required: Any product or service that involves supplements requires a Letter of Medical Necessity (LMN). Truemed makes this quick and easy during checkout.
What is a Letter of Medical Necessity (LMN)?
An LMN is a document signed by a licensed provider confirming that a supplement-based product or service is medically necessary. Truemed provides a fast intake form, and their provider network handles the rest — no extra doctor visit needed.
How does it work at checkout?
1. Add Keyspan products or subscriptions to your cart.

2. Choose “Pay with HSA/FSA via Truemed.”

3. If a product includes supplements, Truemed will guide you through a short intake to generate your LMN.

4. Pay directly with your HSA/FSA card, or submit for reimbursement if required.
Why use Truemed?
Save 30–40% by using pre-tax dollars.

Simple process — Truemed handles all paperwork.

No doctor visits needed.

Works for all Keyspan products and services.