Boulder sits at roughly 5,430 feet, and the trailheads and passes people drive to at weekends sit a good deal higher, so “altitude nutrition” here really means two problems stacked on top of each other: living at moderate elevation, and repeatedly exercising well above it. The physiology is not mysterious. The drop in the partial pressure of inspired oxygen triggers a rise in erythropoietin within hours of arrival, which drives increased red blood cell production. Building new red cells requires iron, and that raises iron demand during the acclimatisation window — which is why the sports science literature has emphasized for years that iron status, ferritin in particular, is worth checking before someone goes to altitude, since low stores can blunt the haemoglobin gains the exposure is supposed to produce.
It is equally the reason nobody should start supplementing iron on their own after reading that paragraph. Iron overload is a real harm, and ferritin is also an acute-phase reactant that rises with inflammation, so the number can mislead in both directions and needs interpreting in context. Fluid balance shifts too — cold dry air plus increased ventilation means more water lost simply by breathing, compounded by the diuresis of early acclimatisation. Resting energy expenditure tends to run higher in the first days at exactly the moment appetite often falls. And at a given absolute workload the body leans harder on carbohydrate than it does at sea level, which is why a fueling plan rehearsed near the ocean falls apart on a Colorado climb. None of that is a diagnosis. It is the set of questions worth bringing to a clinician, ideally with lab work in hand. Here is where Boulder County does that work.
Fast Talk Laboratories — gas exchange and a dietitian in the same appointment
Fast Talk Laboratories runs an in-person endurance physiology lab at 1405 Arapahoe Avenue, and its testing is administered by Jared Berg, described on the site as both an exercise physiologist and a sports dietitian — meaning the fueling conversation happens in the same room as the data rather than three weeks later. Testing uses a lab-grade Parvo Medics metabolic cart paired with a smart trainer for cyclists, with running and uphill athletes tested off-site on high-performance treadmills. A ramp protocol lasting roughly thirty to forty-five minutes returns VO2max, ventilatory threshold and lactate threshold, training zones by heart rate, power and pace, and fuel-utilisation data across easy, moderate and hard intensities — that last piece being the directly altitude-relevant output. Published prices run $300 for the cycling, running or uphill test and consult, and $450 for a same-day triathlon bike-and-run package. Berg spends thirty to sixty minutes afterwards interpreting results including energy demands at race pace. The lab markets explicitly to people preparing for Leadville, gravel racing, skimo and mountaineering.
Revo Physiotherapy and Sports Performance — metabolic testing framed around health, not just racing
Revo Physiotherapy and Sports Performance was founded in 2015 at 2540 Frontier Avenue by physical therapists who wanted a cash-pay, out-of-network model combining evidence-based physical therapy with performance training and objective testing under one roof. The clinic operates a distinct Sports Science Lab alongside its PT and gym services, with metabolic testing as the centerpiece: a mask-based gas-exchange protocol on a treadmill or bike trainer lasting roughly twenty minutes at high intensity, reporting both ventilatory thresholds and VO2max, then converted into heart-rate or power-based training zones. What is useful for this topic is the framing — Revo presents the results around how the body generates and uses energy and how that affects performance, body composition, cognition and mood, rather than only race times, and lists longevity-minded clients alongside cyclists and runners. Other services in the same building include one-to-one physical therapy, massage, blood flow restriction training, medical bike fitting and gym memberships. Because it is out of network by design, you pay directly and submit for reimbursement yourself.
CU Sports Medicine and Performance Center — where a fatigue complaint becomes a workup
This is a multidisciplinary sports medicine practice and the direct institutional successor to Boulder Center for Sports Medicine — both CU Sports Medicine and Performance Center and the CU Medicine location page state it was formed in August 2015 with staff from Boulder Center for Sports Medicine, Boulder Community Health and the CU School of Medicine. Physicians, PAs and nurse practitioners are CU School of Medicine employees while physical therapists, imaging staff and athletic trainers are Boulder Community Health employees, so a patient at 2150 Stadium Drive effectively gets both organizations’ resources at one address on campus. Departments include non-operative sports medicine, orthopedic surgery, physical medicine and rehabilitation, hip preservation, pediatrics, physical therapy, sports performance and advanced diagnostic imaging with 3T MRI. Clinic hours run 7am to 7pm Monday through Thursday, to 6pm Friday and Saturday mornings. In practice this is the referral point for someone whose altitude fatigue turns out to need a physician workup — including the blood work an under-performance complaint warrants — rather than a nutrition adjustment.
Essential Nutrition — dietitians, insurance, and a hydration-tracking test
Essential Nutrition accepts major commercial insurance and offers in-office as well as telehealth appointments, from 4410 Arapahoe Avenue. It is a group practice of registered dietitians whose listed service areas cover general nutrition, chronic disease, gastrointestinal health, blood sugar, women’s wellness, heart health, food allergies and eating disorders, and it describes itself as explicitly non-diet and anti-restriction. That last point is more relevant to altitude than it sounds: newcomers who arrive, lose their appetite, under-eat and then decide to formalise the under-eating are a recognisable local pattern, and a practice organized around adequacy rather than restriction is a different starting point. The Boulder office runs a bioelectrical impedance body composition test that reports hydration status and general cellular health alongside composition, and recommends repeating it over time to see whether nutrition and training changes are actually holding hydration and lean mass steady — which is a reasonable way to track an acclimatisation period.
Boulder Holistic — functional medicine that starts with labs
Boulder Holistic at 2355 Canyon Boulevard is directed by Dr. Terri Rebibo Fox and Dr. Amy Reidhead, who state they have practiced integrative medicine in Boulder for more than twenty years and have trained through the Institute for Functional Medicine and the Academy of Integrative Health and Medicine. Their clinical emphasis is fatigue, chronic illness, gut dysfunction, hormone imbalance, insomnia, low thyroid and related presentations — which overlaps almost exactly with the vague “I moved here and I am exhausted” complaint, and means the standard workup includes the kind of labs that complaint warrants rather than an immediate supplement sale. The practice also runs a nutrient IV service in-clinic with published prices, including NAD+ at $75 for 100mg, an MIC shot at $40 and a B12 shot at $25, plus Myers’ cocktail infusions, with a discount on five-packs and a twice-monthly vitamin shot happy hour. There is an in-house metabolic program and an online pharmacy. Worth saying plainly: a drip is not a substitute for drinking water, and persistent symptoms need a clinician.
Helios Integrated Medicine — conventional family medicine with the other tools attached
Helios Integrated Medicine at 350 Broadway blends conventional family medicine with functional medicine, Traditional Chinese Medicine, homeopathy, Western herbalism, nutritional medicine and intravenous nutrient therapy in one practice. The owner is Pierre Brunschwig, MD, board certified in holistic medicine and family practice; the team also includes Deborah Breakell, FNP, a board-certified family nurse practitioner with twenty-five years in women’s health and family practice, and Margaret Hampton, DACM, who holds a doctorate in acupuncture and Chinese medicine and is board certified in Oriental medicine including Chinese herbalism and nutrition. The clinic describes its IV therapy specifically as medical-grade micronutrient therapy with formulas customized per patient and administered by a registered nurse under physician and NP oversight — a meaningfully different model from a walk-in drip bar, and the distinction is worth understanding before choosing between them. Functional medicine work here is framed around root causes including nutrient deficiencies, hormone imbalance and gut health. Other in-house services include cardiovascular blood testing and carotid ultrasound. Closed Mondays.
Boulder Integrative Health and IV Boulder — one address, two front doors
Boulder Integrative Health at 2575 Pearl Street is a private functional medicine practice owned by Carrie Ballas, BSN, MS, FNP-C, a family nurse practitioner whose stated focus is finding root causes rather than treating isolated symptoms, with listed clinical areas including thyroid conditions, adrenal issues, hormone changes and gastrointestinal problems. What makes it relevant here is that the diagnostics list is published openly: the practice orders conventional blood work through Quest and Labcorp alongside specialty panels from Doctors Data, Vibrant Wellness, Genova, Cyrex and Quicksilver Scientific, so a standard iron panel and more granular micronutrient work can be run through the same practice rather than assembled from three. The clinic also operates a separate storefront service, IV Boulder, at the same address, offering hydration, athletic recovery, Myers’ cocktail, vitamin C, NAD+, glutathione and migraine drips plus a shot bar, on its own phone line. Between the two, the office is open Monday through Saturday. IV Boulder’s hours are Monday 11 a.m.–7 p.m., Wednesday 10 a.m.–6 p.m., Thursday 9:30 a.m.–2:30 p.m., Friday 10 a.m.–2 p.m. and Saturday 10 a.m.–4 p.m., closed Tuesday and Sunday; appointments with Ballas run on their own schedule.
A note on mobile drips
Rocky Mountain IV Medics is a nurse-delivered mobile IV service that comes to a home, office or hotel room in Boulder rather than operating a clinic, with appointments running forty-five to sixty minutes, hours of 8am to 8pm seven days a week, and altitude sickness listed explicitly among its treatment reasons alongside dehydration, athletics, fatigue and migraine. Published package pricing includes a Myers’ cocktail at $205 and a performance package at $335, with individual add-ins available. The company says it is joining Mobile IV Nurses and that nurses, pricing and service area are not changing, so look it up under either name.
Before You Book Anything
The sequencing matters more than the venue. If the complaint is fatigue after moving to Colorado, the useful first step is usually blood work ordered by someone who will interpret it — a physician, nurse practitioner or registered dietitian who reads your iron panel in context rather than a ferritin number in isolation — not a supplement and not a drip. If the complaint is that training feels harder than the numbers say it should, a metabolic test that reports fuel utilisation gives a dietitian something concrete to work from. And if what you actually want is to eat enough while your appetite is suppressed and your energy expenditure is up, that is a nutrition problem with a nutrition answer. Two things this article deliberately does not do: tell you what your ferritin should be, or tell you to take iron. Both of those belong to a clinician who has seen your labs.
This article describes what local businesses offer and, where noted, what they say about their own services. Boulder Vibe does not endorse any treatment for any condition, and nothing here is medical advice. Please talk with your doctor or another qualified clinician before starting something new.
Featured image: Photo: Zach Dischner (BY) via Openverse
