The world's healthiest smoothie?
Health isn’t one-size-fits-all. It’s personal, nuanced, and different for everyone. Erewhon and Function partnered to intentionally select every ingredient to maximize nutritional value, and make a smoothie that supports major health pillars we all need—loaded with key macronutrients for balance and glycemic stability to help your body feel its best.
Get a $25 credit toward a Function membership with purchase. First-time members only.
Essential minerals and vitamins–like magnesium and vitamins A, C, K, E, and B–support immune and nervous system health.
High-quality protein with leucine helps maintain muscle and keep you feeling full, while omega-3 fats support metabolic health and a healthy inflammatory response.
Low sugar and low glycemic load, combined with high fiber and balanced fat and protein, help slow glucose absorption and promote steady energy.
Testing is easy
100+ lab tests
Results explained
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Monitor early indicators of 1000s of diseases
Establish your long-term baseline
Establish your long-term baseline
Tracked for life
Tracked for life
Monitor how your body changes
Monitor how your body changes
100+ lab tests chosen by top doctors
“The most powerful approach I’ve seen in my career. Uncompromising depth with no shortcuts.”
Hormones
& thyroid
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silent risks
Heart
& metabolic
Aging
Mental health
& focus
+More
All-in-one
lab testing
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Gold standard
for lab testing
2,000+ lab test locations across the US
50+ million results delivered to Function members
Not your average checkup
Personalized Protocol
Upload past results
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Every 6 months
Hormones & fertility testing
Heavy metal & toxin testing
Metabolic & pancreatic testing
Heart testing beyond cholesterol
Nutrient/electrolyte testing
Autoimmunity testing
Thyroid testing
Access to MRI & CT
Access to GRAIL Cancer Test
Access to Alzheimers & brain testing
Access to mold reactivity testing
Standard checkup
What could cost you $15,000 is $340
Function membership
<$1
This is the most comprehensive lab testing I have ever had. I am thrilled to know more about my health and how to improve it.
Best money I have spent on healthcare.
Function blows my mind. The experience, price, and clinician notes are all phenomenal.