💡 Quick Answer: AG1 is HSA/FSA eligible because it helps prevent, manage, and reverse a variety of health conditions including nutritional deficiencies, immune dysfunction, and digestive disorders, and many others. According to IRS Publication 502, all you need is a Letter of Medical Necessity.
Luckily, we make it ridiculously simple. Crates Health is the fastest way to get your personalized and compliant letter for AG1 and thousands of other wellness products, plus we handle your reimbursements directly through our platform with just one click.
What is Athletic Greens (AG1)
AG1 (Athletic Greens) is the daily nutrition drink that basically puts your entire supplement cabinet into one scoop. Think of it as the Swiss Army knife of wellness. Founded in 2010 by Chris Ashenden after struggling with gut health issues that left him searching for a comprehensive nutritional solution, AG1 has become the gold standard for foundational nutrition among everyone from professional athletes to busy parents.
This green powder packs 75 vitamins, minerals, prebiotics, probiotics, adaptogens, and whole food-sourced ingredients into a single scoop that actually tastes good (think pineapple-vanilla, not freshly mowed lawn). One serving replaces your multivitamin, probiotic, greens powder, and vitamin C supplement, simplifying your morning routine while covering nutritional bases you didn’t even know you were missing.
The Science Behind AG1:
The formulation isn’t just a random blend of trendy ingredients. AG1 is built around five core areas of health, each backed by nutritional science:
- Foundational Nutrition – AG1 provides a comprehensive vitamin and mineral complex addressing the widespread nutrient gaps in modern diets. Research from the CDC’s Second Nutrition Report shows that significant portions of Americans fall short on essential nutrients, with 31% deficient in at least one vitamin. AG1’s formulation includes methylated B vitamins for better absorption (important for the estimated 40% of the population with MTHFR gene variations), chelated minerals, and bioavailable forms of nutrients that your body can actually use.
- Gut Health Support – The gut microbiome influences everything from immune function to mental health. AG1 includes prebiotics (inulin from organic blue agave) and probiotics (7.2 billion CFUs of Lactobacillus acidophilus and Bifidobacterium bifidum) to support digestive health. Research published in Nutrients demonstrates that probiotic supplementation can improve gut barrier function, reduce inflammation, and support immune response.
- Immune Function – With zinc, vitamin C, vitamin D, and mushroom-derived beta-glucans, AG1 targets multiple pathways of immune support. The American Journal of Clinical Nutrition has published research showing that micronutrient deficiencies impair immune function, and adequate intake supports the body’s defense systems.
- Energy and Recovery – B vitamins, CoQ10, and adaptogenic herbs like ashwagandha and rhodiola support cellular energy production and stress resilience. A study in the Journal of the International Society of Sports Nutrition found that adaptogens can reduce fatigue and improve performance under stress.
- Healthy Aging – Antioxidants from spirulina, chlorella, and various fruit and vegetable extracts combat oxidative stress, a key driver of aging and chronic disease. Research in Free Radical Biology and Medicine shows that antioxidant intake supports cellular health and longevity.
Quality and Testing:
AG1 takes quality seriously in ways that most supplement companies don’t:
- NSF Certified for Sport – Third-party tested for banned substances, making it safe for professional and Olympic athletes
- 950+ contaminant tests – Each batch is tested for heavy metals, pesticides, microbes, and other harmful substances
- Climate-controlled shipping – Probiotics are kept viable through temperature-controlled logistics
- No artificial colors, flavors, or preservatives – Clean formulation without the junk
- Allergen-friendly – No GMOs, dairy, gluten, peanuts, or eggs
The subscription model ($99/month for a 30-day supply) ensures fresh product arrives consistently, and the travel packs make it easy to maintain your nutrition routine on the go. Whether you’re optimizing performance, filling nutritional gaps from a less-than-perfect diet, or supporting gut health after antibiotics, AG1 provides comprehensive coverage in a single daily habit.
Why AG1 Qualifies for HSA/FSA Eligibility
IRS Publication 502 states that medical expenses are “the costs of diagnosis, cure, mitigation, treatment, or prevention of disease, and for the purpose of affecting any part or function of the body,” but “must be primarily to alleviate or prevent a physical or mental condition or illness.”
This means AG1 can qualify for HSA/FSA reimbursement when used for prevention or treatment of:
- Nutritional deficiencies and malabsorption disorders – The CDC reports that nearly one-third of Americans are deficient in at least one vitamin. Conditions like celiac disease, Crohn’s disease, and gastric bypass can impair nutrient absorption, making comprehensive supplementation medically necessary.
- Immune system dysfunction – Micronutrient deficiencies directly impair immune function. Research in the British Journal of Nutrition shows that vitamins A, C, D, E, B6, B12, folate, zinc, iron, copper, and selenium all play critical roles in immune response. AG1 provides meaningful amounts of each.
- Digestive disorders and gut dysbiosis – The probiotics and prebiotics in AG1 support a healthy gut microbiome. The American Gastroenterological Association recognizes probiotics as beneficial for certain digestive conditions, and research shows gut health impacts everything from nutrient absorption to mental health.
- Chronic fatigue syndrome – Fatigue is often linked to nutritional deficiencies, particularly B vitamins, iron, and vitamin D. The Mayo Clinic notes that addressing nutritional gaps is part of comprehensive fatigue management.
- Depression and anxiety disorders – The gut-brain axis is real. Research in Psychiatry Research demonstrates that gut microbiome composition influences mental health, and nutrient deficiencies (particularly B vitamins, vitamin D, and omega-3s) are associated with increased depression risk. The adaptogens in AG1, particularly ashwagandha, have clinical evidence for reducing stress and anxiety.
- Cognitive decline and brain health concerns – B vitamins, antioxidants, and omega-3s support cognitive function. Research in the American Journal of Clinical Nutrition shows that nutritional status affects brain health, and supplementation may slow age-related cognitive decline.
- Chronic inflammation conditions – The antioxidants and anti-inflammatory compounds in AG1 (from spirulina, turmeric, and other ingredients) help combat chronic inflammation, which underlies conditions from heart disease to autoimmune disorders. Studies in Nutrients confirm the anti-inflammatory effects of many AG1 ingredients.
- Age-related nutritional decline – Nutrient absorption decreases with age. The National Institute on Aging notes that older adults often need higher nutrient intake due to reduced absorption efficiency, making comprehensive supplementation increasingly important.
- Post-antibiotic gut restoration – Antibiotics can devastate the gut microbiome. The probiotics and prebiotics in AG1 support microbiome recovery after antibiotic treatment, which the World Gastroenterology Organisation recognizes as a legitimate use of probiotic supplementation.
- Athletic recovery and exercise-induced oxidative stress – Intense exercise creates oxidative stress and depletes nutrients. Research in the Journal of the International Society of Sports Nutrition supports antioxidant and micronutrient supplementation for athletes to support recovery and maintain health.
The key requirement is that your healthcare provider must document AG1 as medically necessary for preventing or managing your specific health condition, not just for general wellness. This documentation comes in the form of a Letter of Medical Necessity (LMN).
How to Assess Your HSA/FSA Eligibility For AG1
Traditional Route: Schedule an appointment with your primary care physician, discuss your health conditions and nutritional needs, and request a Letter of Medical Necessity if comprehensive supplementation is recommended as part of your treatment plan. This typically requires an office visit, potential wait times, and can cost $50-100+ depending on your insurance.
Faster, Smarter Route: Use Crates Health to get your Letter of Medical Necessity online in just a few minutes. Our platform connects you with licensed healthcare providers who can evaluate your conditions remotely and issue the appropriate documentation if you qualify. No office visits, no waiting weeks for appointments, and no surprise medical bills.
Frequently Asked Questions
Do other greens powders and nutritional supplements qualify for HSA/FSA?
Yes. With the right medical documentation, you can use HSA/FSA funds for other greens powders, multivitamins, probiotics, and nutritional supplements when they’re recommended for preventing or treating specific medical conditions. Popular alternatives like Vital Proteins, Ritual, Seed, LMNT, Momentous, and Thorne can also qualify with proper documentation. Check out our complete HSA Eligible Vitamins & Supplements Guide for more options.
How does the reimbursement process work?
Most retailers do not accept HSA/FSA cards. So, you’ll pay with your personal card, save your receipt, then submit the receipt and LMN for reimbursement through your HSA/FSA administrator. With Crates Health, we simplify this process: upload your receipt and get one-click reimbursements directly through our platform.
What is a Letter of Medical Necessity?
A Letter of Medical Necessity (LMN) is documentation from a licensed healthcare provider explaining why AG1 is medically necessary for preventing, managing, or treating a specific condition. It’s the official paperwork proving your nutritional supplementation isn’t just for general wellness. Each LMN typically remains valid for 12 months.
Will my HSA/FSA claim get denied?
With proper documentation, denials are rare. That said, every HSA/FSA administrator is different, and some may initially deny claims due to receipt format, LMN documentation, or unclear medical necessity. Crates Health supports you through any denials and makes sure you get reimbursed.
Can I use HSA/FSA for AG1 travel packs?
Yes. The travel packs are the same product in a different format, so they qualify under the same LMN. This is particularly useful if you travel frequently and need to maintain your supplementation routine on the go.
Do I need blood work showing deficiencies to qualify?
Not necessarily. While blood work showing specific deficiencies can strengthen your case, many conditions (like malabsorption disorders, post-antibiotic gut restoration, or age-related nutritional needs) don’t require specific lab values to justify supplementation. Your healthcare provider can document medical necessity based on your health history, risk factors, and clinical presentation.
