Welcome to Testosterone Studies

Testosterone influences our mood, our sexuality, our smell and our appearance. This site is an ever growing compilation of studies related both to how to increase testosterone and to the effects of testosterone. There will also be a focus on dihydrotestosterone (DHT) an important metabolite of testosterone that mediates many of testosterone's actions.

Testosterone Essentials - Basic Nutrients

Stuff you can (and should) get if you had a good diet rich in nutrients. Nothing fancy, no rare herbs etc.

Most Important Minerals: Potassium - Magnesium - Zinc - Copper
Other Minerals: Calcium - Selenium - Boron - Iodine - Sulfur
Vitamins: Vitamin A - Vitamin D - Vitamin E - Biotin (Vitamin B7) - Nicotinamide - Pantothenic acid (Vitamin B5)
Amino Acids: Glutamine - Glycine - L-Histadine
Hydration: Hydration
Fats & Oils: Stearic Acid - Palmitic Acid - Omega 3 and 6
Antioxidants Antioxidants
Alcohol Alcohol

Non-nutrient variables

BMI - Stress

Mediators

Prostaglandin E2 - Prostaglandin E1

Medical Issues

Varicocele - Benign Prostatic Hyperplasia - lower urinary tract symptoms (LUTS) - Prolactinoma

Hydrogen sulfide may help with LUTS hydrogen sulphide as a mediator of relaxation in human and rat bladder

Treating Varicocele

Aescin - Escin - Carnitine - Guizhi-Fuling-Wan - Pycnogenol and Varicocele - Speculative Treatments

Night-time loo trips 'linked to salt in diet' http://www.bbc.co.uk/news/health-39382339

https://www.ncbi.nlm.nih.gov/pubmed/26763549
https://www.ncbi.nlm.nih.gov/pubmed/28164122
http://www.ajandrology.com/temp/AsianJAndrol182222-5346715_145107.pdf
Cochrane Review https://www.ncbi.nlm.nih.gov/pubmed/27048768
Flavanoids for treating leg ulcers https://www.ncbi.nlm.nih.gov/pubmed/23728661
http://www.ajandrology.com/article.asp?issn=1008-682X;year=2016;volume=18;issue=2;spage=222;epage=228;aulast=Garg

MMP-9 and Varicocele - https://www.ncbi.nlm.nih.gov/pubmed/24184457
Vitamin D reduces MMP-9
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3118225/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3118225/
https://www.ncbi.nlm.nih.gov/pubmed/24306365
https://www.ncbi.nlm.nih.gov/pubmed/25237378

Androgen Receptor Agonists

.

Neutral

Iron - Alpha Carotene - Beta Carotene

Exotic Testosterone Boosters

Components of food: Lactate - Oleuropein
Herbs: Forskolin - Tongkat Ali, Long Jack, Eurycoma Longifolia - Ashwaghanda - Macuna Pruriens
Bee Products: Royal Jelly
Tradamixina
Tribulus terrestris

Pharmaceuticals

Viagra - Tadalafil - Cialis

Testosterone Suppressors

Minerals: Fluoride - Phosphorus -Molybdenum - Manganese
Chemicals: Monosodium Glutamate - Triclosan -
Fats & Oils: Trans fat

Big list of antifertility/testosterone/DHT plants http://www.ijppsjournal.com/Vol3Suppl5/2761.pdf
- A few common ones to look out for: Rosemary, Fenugreek, Clove, Black Pepper, Curcuma Longa (Turmeric), Aloe Vera, Garlic

Dihydrotestosterone (DHT) Boosters

Nicotinamide
Glycine
Sorghum

dihydrotestosterone (DHT) Inhibitors

Riboflavin - Vitamin B2
Menaquinone 7 - Vitamin K2 MK7
Vitamin K
Berberine
Black Pepper

Prolactin

http://journal.frontiersin.org/article/10.3389/fendo.2016.00025/full
Calcium and Prolactin
Beer and Prolactin
Hypoglycaemia and Prolactin - Hypoglycaemia increases prolactin
Psychological stress and Prolactin - Psychological stress increases prolactin
Physical stress and Prolactin - Physical stress like surgery or exercise increases prolactin
Zinc and Prolactin - Zinc and reduce prolactin

Demographics

Racial Differences

Testosterone, Anxiety and Depression

http://www.psypost.org/2017/03/study-finds-testosterone-levels-influence-link-cerebellum-density-neuroticism-47995

Cardiovascular System

L-Histidine
https://www.ncbi.nlm.nih.gov/pubmed/26203100

Semen

Nutrients in semen

Effects of Testosterone

How to make your voice deeper with supplements and diet

Hormones, Neurotransmitters and Binding Proteins

Cortisol - Corticosterone
Testosterone vs DHT
Oxytocin
Dopamine
Activin
Prolactin
Follistatin
Inhibin
GABA
Prostate—an extrapituitary source of follicle-stimulating hormone (FSH) *http://onlinelibrary.wiley.com/doi/10.1002/pros.2990180402/full**

Enzymes

3alpha-HSD
glucosamine-6-phosphate synthase

Messengers

cGMP - Nitric Oxide

Erectile Function

Veno-occlusive dysfunction (VOD) and erectile function http://onlinelibrary.wiley.com/doi/10.2164/jandrol.109.008532/pdf
Testosterone and Erectile Function
Hydrogen Sulfide
Obesity and Erectile Function
Histamine and Erectile Function

Female Sexual Function

Hydrogen Sulfide and female sexual function
Vitamins affect female hormone status beyond their antioxidant effects
https://www.ncbi.nlm.nih.gov/pubmed/26581679

Study Methodology

Why RCTs are not conclusive

Other Topics

Happiness & Mental Health
Sleep
Behaviour
Hair Loss
Glossary
The Human Sexual System
Political Psychology
Gender Equality
Attraction
Nootropics
Nightmares

Childhood Nutrition
Folic acid supplementation (after a certain date) in pregnant women increases allergy risk in children.
https://www.ncbi.nlm.nih.gov/pubmed/28208798

http://www.dailymail.co.uk/sciencetech/article-4535936/Why-children-strict-bedtimes-best-sleep.html

retinal carotenoids and behavioral and neuroelectric indices of cognitive control in childhood
http://www.sciencedirect.com/science/article/pii/S0167876017300715

Oral health
Oil pulling http://www.sciencedirect.com/science/article/pii/S2225411016300281

Citrate has a role in bones http://www.cam.ac.uk/research/news/shock-absorbing-goo-discovered-in-bone
Higher endogenous T makes women less angry https://www.ncbi.nlm.nih.gov/pubmed/27924836
Functional cross-talk between the hypothalamic-pituitary-gonadal and -adrenal axes.
https://www.ncbi.nlm.nih.gov/pubmed/12047726?dopt=Abstract

Here is a turtle, where does it go?
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