Chamomile is a gentle, well-tolerated botanical with real but modest effects. Its most consistent benefits are better subjective sleep quality and reduced everyday anxiety. Weaker evidence suggests slightly lower blood sugar in diabetes and calmer mouth and gut inflammation. Main cautions: daisy-family allergy, added bleeding risk with blood thinners, and pregnancy uncertainty. (Full Review)

Protocol

Tea Dose

~3 g dried flowers

Steeped 5–10 min, 1–3× daily

Extract Dose

220–1,500 mg/day

Standardized to ~1.2% apigenin; titrated up

Timing

30–60 min before bed

Split into 2–3 doses across day for anxiety

Time to effect

Sleep & Calm

30–45 min

Acute calming effect felt

Anxiety

2–4 weeks

Generalized anxiety improves

Blood Sugar

~8 weeks

Glucose changes with daily use

Benefits

Medium: Improved sleep quality; reduced generalized anxiety

Low: Modest blood-sugar improvement; oral/mucosal anti-inflammatory relief; menstrual and digestive cramping relief

Speculative: Cellular aging and NAD⁺ support; skin health and wound healing

Contraindications

Asteraceae allergy (ragweed, chrysanthemum, marigold, daisy)

Pregnancy and breastfeeding

Within ~2 weeks of surgery

Key Interactions

Anticoagulants/antiplatelets (warfarin, apixaban, clopidogrel)

Sedatives/CNS depressants (benzodiazepines, Z-drugs, opioids)

OTC sedating antihistamines, NSAIDs, aspirin

Sedating or blood-thinning supplements (valerian, kava, melatonin, fish oil, ginkgo)

Risk & Side Effects

Medium: Allergic and hypersensitivity reactions

Low: Gastrointestinal upset and nausea; drowsiness and sedation; increased bleeding risk with anticoagulants

Speculative: Pregnancy-related risks; anti-estrogenic hormonal effects

Monitoring

Marker	Target	Why
HbA1c	< 5.4%	Tracks glucose control
Fasting blood glucose	75–90 mg/dL	Detects short-term blood-sugar effect
INR	2.0–3.0 (on warfarin)	Detects added bleeding risk
Fasting insulin	2–5 µIU/mL	Complements glucose reading
hs-CRP	< 1.0 mg/L	Gauges anti-inflammatory effect

Cadence: Recheck fasting glucose and HbA1c at ~8–12 weeks, then every 6–12 months; INR within 1–2 weeks of any change for warfarin users; anxiety and sleep tracked by ongoing self-report.

Qualitative Assessment

Falling asleep more easily and fewer night-time awakenings
Lower day-to-day anxiety and a greater sense of calm
Improved subjective sleep quality and morning restedness
Reduced digestive discomfort or menstrual cramping where relevant
No daytime grogginess, allergic symptoms, or unusual bruising/bleeding

Chamomile for Health & Longevity

Protocol

Benefits

Risk & Side Effects

Monitoring

Qualitative Assessment