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Supplement Timing Guide: When to Take Everything and Why Timing Matters

Bioavailability, receptor timing, and interaction effects all depend on when supplements are taken. The protocol is not arbitrary-each timing recommendation has a mechanism.

January 16, 2025·3 min read

Taking the right supplements at the wrong time reduces their efficacy. This guide covers the timing rationale for every supplement in all three protocols.

Universal Principles

With food vs. fasted: Fat-soluble supplements (DHA/EPA Omega-3, fat-soluble vitamins) require dietary fat for absorption. Take with a meal containing fat. Water-soluble supplements (NAC, Vitamin C, B-vitamins) can be taken fasted but are typically better tolerated with food.

Morning vs. evening: Adaptogens (Rhodiola, Ashwagandha) are typically better taken in the morning-their cortisol-modulating effects are most useful during the day's activity periods. Sleep-specific supplements (Melatonin, Apigenin, high-dose Magnesium) are taken 30-60 minutes before bed.

Splitting doses: Compounds with shorter half-lives (NAC: ~4 hours, L-Theanine: ~3-5 hours) benefit from split dosing to maintain steady plasma levels throughout the day.

NIC Protocol Timing

Cytisine: Per the clinical trial protocol-specific schedule provided with your kit. Most trial protocols use 6x daily dosing tapering to 3x then 1-2x over the 6-week course. Take before meals.

NAC 600mg: Twice daily-morning (with breakfast) and early afternoon. Avoid evening dosing if GI sensitivity is an issue.

L-Theanine 200mg: Morning, with coffee or first meal. Specifically useful if paired with caffeine (the classic L-Theanine:Caffeine nootropic ratio).

5-HTP 100mg: Afternoon or early evening. Serotonin precursors taken in the evening support sleep as serotonin converts to melatonin. Avoid pairing with SSRIs.

Magnesium Glycinate 400mg: 30-60 minutes before bed. Promotes sleep quality.

Chromium Picolinate 200mcg: With lunch. Blood glucose stabilization effect is most relevant to post-lunch appetite management.

Rhodiola Rosea 300mg: Morning, before breakfast. Adaptogens are most effective when taken before the day's stressors. Do not take in the evening-Rhodiola can be mildly stimulating.

GREEN Protocol Timing

NAC 600mg: Morning and early afternoon (same as NIC).

Magnesium L-Threonate 2000mg: 30-60 minutes before bed. This is the cornerstone of the sleep intervention; consistent pre-bed timing is important.

DHA/EPA 2000mg: With the largest meal of the day. Fat co-ingestion significantly improves omega-3 absorption.

Ashwagandha KSM-66 600mg: Morning or split (300mg morning, 300mg evening). Some evidence for evening dosing improving sleep quality.

Apigenin 50mg: 30-60 minutes before bed. Sleep-focused.

L-Theanine 300mg: Morning (anxiety management during day) or evening (sleep onset support). Can be split.

Melatonin 0.3mg: 30-45 minutes before bed. Consistent timing relative to desired sleep onset time is important for circadian entrainment.

DRY Protocol Timing

Kudzu Root 1500mg: Split dose-750mg with breakfast, 750mg with dinner. Consistent twice-daily dosing tracks clinical trial protocols.

NAC 600mg: Morning and early afternoon.

B-Complex (B1 100mg, B6 50mg, B12 500mcg): Morning with breakfast. B-vitamins are water-soluble and best absorbed separately from each other at high doses; taking with a meal is sufficient for the DRY protocol dose.

Magnesium Glycinate 500mg: 30-60 minutes before bed.

GABA 750mg: 30-60 minutes before bed. GABA's direct inhibitory effects are sleep-supportive.

Milk Thistle 400mg: With meals (any meal). Consistent timing is more important than specific timing.

L-Glutamine 5g: Morning, on an empty stomach if tolerated. Intestinal absorption is highest without food competition.