What functional medicine is, and what it isn't

Most people first hear about functional medicine when they've spent years feeling off (tired, bloated, hormonal, sleeping badly) and conventional GP appointments haven't really moved the needle. "Your bloods are normal" gets old.

This post is a quick honest tour of what functional medicine actually is, where it's useful, and (importantly) where it isn't. AskMuna is built for the quality-of-life end of that spectrum, not the acute medical end, and the two should never get confused.

What functional medicine actually does

Functional medicine looks at the body as a system. Instead of asking what disease label fits these symptoms?, it asks why is this person's system not working as well as it could? That usually means investigating:

• Nutrient status: vitamin D, B12, iron, magnesium, omega-3 ratios
• Gut function: bloating, dysbiosis, food sensitivities, SIBO, leaky gut
• Hormonal patterns: thyroid (free T3 and reverse T3, not just TSH), perimenopause, cortisol rhythms
• Lifestyle inputs: sleep architecture, stress load, movement, what you actually eat day-to-day
• Genetic context: methylation (MTHFR), histamine processing, detox pathways

The interventions are usually nutrition, targeted supplementation, sleep and stress practices, and sometimes lab tests the NHS doesn't routinely run.

Where it genuinely helps

These are the areas where functional medicine often gets traction, and where the NHS, with limited 10-minute appointments and tight referral criteria, often can't.

• Persistent bloating, IBS, SIBO
• Hormonal symptoms in perimenopause: cycle changes, sleep disruption, brain fog
• Stubborn fatigue with "normal" basic bloods
• Skin issues (acne, eczema, rosacea) where topicals haven't worked
• Sleep quality, anxiety patterns linked to nutrient deficiencies
• Optimisation of energy, performance and longevity

These are real, day-to-day quality-of-life issues. They deserve careful, evidence-based attention. They just don't usually qualify for a specialist referral in the NHS.

When functional medicine is NOT the right path

This part matters. AskMuna is not a substitute for medical care. If you're dealing with any of the following, please work directly with your GP, a specialist consultant, or A&E:

• Anything acute or life-threatening: chest pain, severe abdominal pain, difficulty breathing, sudden severe headache, fainting, signs of stroke
• Cancer, suspected cancer, or any unexplained lump
• Organ disease: kidney, liver, heart failure, autoimmune disease in active flare
• Severe mental health crises: call NHS 111 (option 2), Samaritans (116 123), or A&E if you or someone else is at risk
• Anything needing prescription medication, diagnostic imaging, or surgery
• Infections, particularly if you have a fever
• Children's medical issues: always your GP first

A good functional medicine practitioner (and AskMuna) will complement conventional care, not replace it. If your GP has prescribed something or referred you to a specialist, follow that path. Use functional approaches alongside.

How AskMuna fits in

AskMuna is your first-pass thinking partner for the quality-of-life questions. She'll:

• Help you understand your symptoms and what might be contributing
• Suggest specific tests worth asking your GP about (or paying for privately)
• Recommend supplements with dosing, brand, and timing
• Track what you're taking and how you're responding

What she won't do:

• Diagnose you
• Prescribe medication
• Replace your GP, consultant, or therapist
• Make decisions about treatment for serious medical conditions

Think of her as the practitioner-level conversation you'd otherwise pay £1,000+ for, available on demand, with every claim cited from peer-reviewed research, and never trying to replace the medical care you actually need.

If you're ever unsure whether something is "GP territory" or "AskMuna territory", default to your GP. Always.