Tag · evidence
Articles tagged Evidence
23 Forgestack articles on Evidence, grounded in peer-reviewed citations.
Skip the reading and get a personalised stack
Supplement finder guide & 3-min quiz →Ashwagandha Evidence Guide — KSM-66 vs Sensoril, Cortisol, T, and Sleep
Ashwagandha KSM-66 240–600mg/day × 8 weeks lowers cortisol by 27.9% (Lopresti 2019), raises testosterone by 14.7% (Wankhede 2015), and improves sleep onset by 38% (Langade 2019). KSM-66 vs Sensoril compared, with timing and contraindications.
Multivitamin for Men — How to Choose, What Japanese Men Miss
A multivitamin is insurance, not magic. Cover the 5 micronutrients Japanese men commonly miss (D, Mg, Zn, B12, B6) while avoiding iron overload. Grounded in Bjelakovic 2007 (mortality null result) and Manson 2020 COSMOS (cognition).
Knowledge Worker Supplement Stack — 4 Priorities for Remote Working Men
Remote working men miss vitamin D, magnesium, omega-3, and L-theanine due to indoor + sedentary + screen + sustained cortisol. ¥4,000–7,500/month, paired with 3 lifestyle foundations.
Morning Focus Stack — Caffeine × L-Theanine × Ashwagandha
Morning focus is a design problem, not a willpower problem. Build the 3-stage stack — caffeine + L-theanine 60–90min after waking, plus ashwagandha the night before. Grounded in Owen 2008, Haskell 2008, Lopresti 2019, and Drake 2013.
Sauna for Recovery — How HSP, GH, and Sleep Compound for Lifters
Sauna is not just a feel-good ritual — HSP70, growth hormone, and blood flow drive measurable recovery. Grounded in Laukkanen 2015 (all-cause mortality −40%), Scoon 2007 (endurance +1.9%), Pilch 2013 (GH 2–5x), and Haghayegh 2019 (sleep onset).
Omega-3 Evidence Guide — EPA, DHA, and Why Most Men Are Deficient
Omega-3 (EPA + DHA) is backed by evidence in 4 areas: inflammation, cardiovascular, muscle protein synthesis, and brain. From Mozaffarian 2011 (CHD −10%), Smith 2011 (MPS +50%), Calder 2017 (anti-inflammatory), and Mocking 2016 (depression).
Cortisol Management — A 4-Step Protocol for Lifters
Chronic cortisol excess kills testosterone and muscle protein synthesis at the same time. A 4-step protocol — sleep 7h, no caffeine after 2pm, ashwagandha 240mg, training-intensity ceiling — grounded in Lopresti, Leproult, Drake, Hill, Brownlee, and Bonnar.
Caffeine Timing Protocol — 3 Scenes, 3 Doses
Caffeine is a timing problem, not a dose problem. 3 scenes: morning wake (80–100mg), pre-workout (3–6mg/kg), and zero after 2pm. Grounded in Grgic 2020, Spriet 2014, Pickering 2019, ISSN 2021, and Drake 2013.
5 Natural Strategies to Optimize Testosterone — Nutrition, Sleep, Training, and Stress
Natural testosterone optimization comes down to five evidence-backed levers: fixing nutrient gaps (zinc, vitamin D, magnesium), 7+ hours of sleep, body fat 12–20%, compound lifts, and chronic stress control. Grounded in Prasad, Pilz, Leproult, Kelly & Jones, Kraemer, and Lopresti.
The Definitive Supplement Assessment — 8 Archetypes Decoded
Supplement choice comes down to goal × archetype × budget. Forgestack's 15-question assessment sorts you into one of 8 archetypes and returns an evidence-backed stack grounded in Morton 2018, Kreider 2017, and Jäger 2017.
Zinc Responders vs Non-Responders — Does 30mg Actually Work?
Zinc raises testosterone only in deficient men (serum Zn < 70μg/dL). We verify the 3 conditions that separate responders from non-responders across 9 papers including Prasad 1996, Cinar 2011, and Wessels 2017, plus form-based absorption table.
Breaking Through a Plateau — The 4-Step Nutrition Protocol
90% of lifting plateaus are nutrition plateaus. Before adding supplements, run the 4-step protocol: protein, calories, sleep, then supplements. Grounded in Morton, Helms, Leproult, and Dattilo.
Magnesium × Sleep — A Form-by-Form Map to Pick the Right One
Magnesium form matters more than dose for sleep. Glycinate for insomnia, threonate for cognitive protection, oxide is a laxative not a sleep aid — a symptom-by-form map grounded in Abbasi, Held, Nielsen, Poleszak, Slutsky, and Mah.
Cutting Supplements — Only 5 Matter
The job of supplements in a cut is not to burn fat — it's to protect muscle and micronutrients. The 5 that matter, the 3 that don't, grounded in Morton, Kreider, Grgic, McGlory, and Farrokhyar.
Zinc and Testosterone — The Evidence Guide
Zinc restores testosterone in deficient men but does not raise it in the sufficient. A deep dive into Prasad 1996, Wessels 2017, and Prasad 2013, plus dosing, form comparison, and interactions.
HMB — Not Ineffective, Just Conditional
Why HMB went from miracle muscle supplement in 2000 to near-invisible in 2020. From Nissen 1996 to Sanchez-Martinez 2018 — and the current rational position: works for beginners, elderly, and cutting phases; negligible for trained athletes on adequate protein.
BCAA vs EAA — Which to Buy, or Neither?
BCAA flips the switch, EAA actually builds protein. From Moberg 2016, Tipton 2004, and Morton 2018 — the 2020s rational conclusion: if you're hitting 1.6g/kg protein daily, neither BCAA nor EAA adds meaningful benefit.
Protein Types — Whey vs Casein vs Plant (Soy/Pea/Rice)
The protein aisle is 90% whey variants and plant substitutes. Compare whey, casein, soy, pea, and rice by absorption kinetics and amino acid profile via Morton 2018, Res 2012, Lim 2021, and Schoenfeld & Aragon 2018.
Sleep Supplements — Magnesium, Melatonin, Ashwagandha, L-Theanine, Glycine
Sleep supplements decoded by problem type: insomnia, mid-night waking, or circadian misalignment. Magnesium, melatonin, ashwagandha, L-theanine, and glycine combined per goal.
Creatine — The Evidence Guide
Creatine — one of the two most evidence-backed sports supplements — broken down by dose, safety, and long-term data from Morton, Kreider, and Antonio.
Vitamin D — The Evidence Guide
Vitamin D — deficient in 80% of Japanese adults. Blood levels, athletic performance, infection risk, and dosing decoded through Holick, Farrokhyar, Martineau, and Dahlquist.
Magnesium Forms Compared — Evidence Guide
Magnesium forms differ widely in absorption and side effects. A purpose-driven guide to glycinate, malate, citrate, threonate, oxide — plus drug interactions.
Caffeine — Performance vs Tolerance Strategy
How to use caffeine strategically — dose, timing, tolerance, and CYP1A2 genotype, decoded from ISSN and Grgic, Spriet, Pickering.