Part III: Supplements
Supplements come AFTER diet, sleep, and exercise — not instead of them. These address deficiencies lifestyle can't fix. Start with 3, not 15.
If you only do one thing from this section:
Start Creatine Monohydrate
5g daily, no loading needed. The brain uses 20% of your body's energy. Creatine is the ATP buffer. 2024 meta-analysis confirmed cognitive benefits. Vegetarians see the largest gains.
Too foggy to read this section? Start here:
- $50/mo Minimalist Stack: Creatine ($15) + Mg L-Threonate ($25) + B-Complex ($10) — start here, not with 15 bottles
- Always check Drug Interactions before starting anything new
- Add one supplement at a time, 2 weeks apart, so you know what's working
Before You Start Any Supplement
No supplement stack replaces a proper diagnosis. If you have not completed Parts I-IV (sleep, diet, movement, and rule-outs), go back. Supplements build on a foundation of addressed root causes — they do not substitute for them. If nothing improves after 30 days of structured lifestyle change, escalate to a full medical workup rather than adding more pills.
The $50/Month Minimalist Stack
You do NOT need 15 supplements. If budget is tight, these 3 cover the most ground:
~$15/mo
Creatine Monohydrate
5g daily, ATP buffer, brain energy
~$25/mo
Magnesium L-Threonate
Crosses BBB, improves sleep
~$10/mo
Methylated B-Complex
Neurotransmitter synthesis
Add everything else only if these don't improve symptoms after 8 weeks.
Evidence-Tiered Supplements
Systematic review found improvements in memory, attention, and processing speed. The brain uses 20% of total energy. Vegetarians/vegans see larger cognitive benefits.
Protocol: 5g daily. No loading needed. Mix in any beverage. Creatine monohydrate is the only form with robust evidence.
⚠️ May cause initial water retention/bloating. Rare: GI upset, muscle cramps. Stay well hydrated. Caution with kidney disease.
Only form shown to cross blood-brain barrier and increase brain magnesium levels. MIT-developed. Improves synaptic density and plasticity.
Protocol: 144mg elemental Mg (as threonate) daily. Often dosed as 2g MgT. Take evening (promotes sleep).
⚠️ May cause drowsiness (take evening). High doses can cause loose stools. Caution with kidney disease or on blood pressure medications.
Diamine oxidase breaks down dietary histamine. For histamine intolerance (flushing, headaches, brain fog after high-histamine foods).
Protocol: Take 15-20 min before histamine-containing meals. Start with 10,000 HDU per meal. Combine with low-histamine diet trial.
⚠️ Rare GI upset. Only helps with dietary histamine, not endogenous. Consult provider during pregnancy.
Promotes nerve growth factor (NGF) synthesis. RCT: improved cognitive function in mild cognitive impairment. Benefits reversed when supplementation stopped.
Protocol: 500-1000mg dual extract (fruiting body + mycelium) twice daily. Look for standardized hericenones/erinacines.
⚠️ May cause itchy skin in those with mushroom allergies. May slow blood clotting — stop 2 weeks before surgery.
Structural component of cell membranes. FDA-qualified health claim for cognitive decline. Most studied nootropic phospholipid.
Protocol: 100mg three times daily with meals. Soy-derived or sunflower-derived. Effects may take 6-12 weeks.
⚠️ May cause insomnia or stomach upset at high doses (>600mg). Theoretical interaction with blood thinners. Use sunflower-derived if soy-sensitive.
Ayurvedic adaptogen with RCT evidence for memory and attention. Works via antioxidant and cholinergic mechanisms. Requires 8-12 weeks for full effect.
Protocol: 300-450mg standardized extract (50% bacosides) daily with fat. Take consistently for 3+ months.
⚠️ May cause GI upset. Start low and increase gradually. Interacts with thyroid medications.
Increases cerebral blood flow. Mixed evidence for cognition in healthy adults, stronger evidence in cognitive impairment.
Protocol: 120-240mg standardized extract (24% flavone glycosides, 6% terpene lactones) daily. Split dosing.
⚠️ Blood thinning effect. Avoid with anticoagulants or before surgery.
Most bioavailable choline source. Crosses blood-brain barrier. Supports acetylcholine synthesis for memory and learning.
Protocol: 300-600mg daily. Can split morning/afternoon. May enhance effects of other cholinergics.
⚠️ May cause headache, heartburn, dizziness, or low blood pressure. Avoid with other cholinergic drugs. Recent research links high-dose long-term use to stroke risk — cycle use.
Adaptogen that reduces mental fatigue and improves cognitive performance under stress. Acts on HPA axis and neurotransmitters.
Protocol: 200-400mg standardized extract (3% rosavins, 1% salidroside) morning. Cycle 3 weeks on, 1 week off.
⚠️ May cause dizziness, dry mouth, or jitteriness. Can be stimulating — avoid evening use. May interact with antidepressants and stimulants.
Essential for mitochondrial ATP production. Levels decline with age and statin use. Ubiquinol form is 3-4x more bioavailable than ubiquinone.
Protocol: 100-200mg ubiquinol daily with fat-containing meal. Higher doses for statin users.
⚠️ Rare: insomnia, GI upset. May lower blood pressure. Interacts with warfarin (may reduce efficacy). Tell surgeon if taking before procedures.
Promotes mitochondrial biogenesis (creation of new mitochondria). Synergistic with CoQ10. Emerging evidence for cognitive benefits.
Protocol: 10-20mg daily. Often combined with CoQ10. Take with meals.
⚠️ Possible headache, fatigue, or drowsiness initially. Limited long-term safety data — cycle use recommended. Avoid doses above 20mg.
Transports fatty acids into mitochondria for energy. Acetyl group supports acetylcholine synthesis. Evidence strongest in older adults.
Protocol: 500-1500mg daily in divided doses. Morning and early afternoon (can be stimulating).
⚠️ May cause nausea, restlessness, or fishy body odor. Can be overstimulating — avoid evening use. May worsen hypothyroidism. Avoid with seizure history.
Potent anti-inflammatory that crosses blood-brain barrier. Reduces brain inflammation markers. Piperine increases absorption 2000%.
Protocol: 500-1000mg curcumin with 5-10mg piperine, twice daily with meals. Or liposomal/phytosomal forms.
⚠️ May cause GI upset, nausea. Slows blood clotting — stop 2 weeks before surgery. May lower blood sugar. Piperine increases absorption of many drugs.
B1, B6, B9 (folate), B12 are essential for neurotransmitter synthesis and methylation. Deficiency causes reversible cognitive impairment.
Protocol: Methylated forms preferred (methylfolate, methylcobalamin). B12 >500 pg/mL, homocysteine <10. Active B-complex daily.
⚠️ B6 toxicity at high doses (>200mg/day) can cause neuropathy. B3 may cause flushing. Bright yellow urine is normal (B2). Methylated forms may cause anxiety in overmethylators.
Critical Drug Interactions
- 5-HTP + SSRIs/SNRIs: Do not combine (serotonin syndrome risk)
- Huperzine A + Donepezil: Do not combine (both are cholinesterase inhibitors)
- NAC + Nitroglycerin: Do not combine (severe hypotension risk)
- Ginkgo + Anticoagulants: Avoid (blood thinning effect)
- Iron + Thyroid medication: Space by 4+ hours
Always check with your pharmacist or doctor before adding supplements to your medication regimen. Full interaction database →
Supplements Optimized?
If you've started with the minimalist stack and fog persists, ensure you've addressed sleep, diet, and blood testing first.
View Blood Panel → Sleep StrategiesLast reviewed: February 2026
This guide is educational, not medical advice. Consult your physician before starting any supplement.
*These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.