Evidence supporting the use of: D-Aspartic Acid
For the health condition: Athletic and Exercise Aids
Synopsis
Source of validity: Scientific
Rating (out of 5): 2
D-Aspartic Acid (DAA) is an amino acid that has been investigated for its potential use as an athletic and exercise aid, primarily due to its purported effects on testosterone production. Scientifically, DAA is known to play a role in the synthesis and release of hormones, including luteinizing hormone (LH) and testosterone, which could theoretically enhance muscle strength, recovery, and athletic performance.
Initial studies, including small trials on untrained men, suggested that DAA supplementation could temporarily increase testosterone levels. For example, a 2009 study found that 3g/day of DAA increased testosterone by about 40% after 12 days. However, subsequent and larger studies, especially those involving resistance-trained men, have failed to replicate these testosterone-boosting effects or to demonstrate meaningful improvements in muscle mass, strength, or exercise performance. Some research has even shown that prolonged use of DAA may reduce testosterone levels in resistance-trained individuals.
Current consensus based on systematic reviews and meta-analyses is that there is limited and inconsistent evidence to support the use of DAA as an effective supplement for athletic performance or muscle building in healthy, trained individuals. While the scientific rationale exists, the actual efficacy in athletes or those engaged in intense exercise is unproven or possibly negative. As such, evidence supporting DAA as an athletic or exercise aid is rated low (2/5).
More about D-Aspartic Acid
More about Athletic and Exercise Aids
Other ingredients used for Athletic and Exercise Aids
1,3,7-Trimethylpurine-2,6-dione7-Keto-DHEA
Acetyl L-carnitine
Acetyl-L-Tyrosine
adenosine 5-triphosphate disodium (ATP)
Adenosine triphosphate (ATP)
Agmatine
Algae
Algal protein
Alpha D-ribofuranose
Alpha glyceryl
Alpha hydroxyisocaproic acid
alpha-ketoglutarate (AKG)
Alpha-ketoisocaproic acid
amino acids
antler
arachidonic acid
arginine alpha ketoglutarate
Arginine aspartate
arginine creatine
Arginine malate
Arginine nitrate
Arginine silicate
ashwagandha
astaxanthin
ba ji tian
bacillus subtilis
BCAA
bee pollen
Beef Protein
beet
beta-alanine
bicarbonate
black ginger
black tea
bovine
bovine protein
branched-chain amino acids
brown rice protein
Bulbine natalensis
caffeine
Camellia sinensis
capsaicinoids
capsiate
capsicum
capsinoids
cardarine
casein
cistanche
citrate malate
cocoa
coconut
coenzyme Q10 (CoQ10)
collagen
colostrum
conjugated linoleic acid (CLA)
cordyceps
creatine
creatine monohydrate
curcumin
D-Aspartic Acid
D-Ribose
deer velvet
dihydrocapsiate
ecdysteroids
ecdysterone
electrolytes blend (proprietary)
eleuthero
elk antler
Ephedra
ephedrine
Ethyl-Alpha-Guanido-Methyl-Ethanoate
Eurycoma Longifolia
eurycomanone
Fadogia agrestis
ginseng
Ginsenosides
glucose
Glutamine
Glycerol
Glycocyamine
GMS-ribose
green tea
guanidinoacetic acid
guarana
Guaranine
guayusa
Higenamine
HMB hydroxymethylbutyrate
horny goat weed
hydroxymethylbutyrate
Isoleucine
isomaltulose
jiaogulan
ketone salts
kola nut
L-alanine
L-alanyl-L-glutamine
L-arginine
l-carnitine
L-citrulline
L-glutamine
L-glycine
l-isoleucine
L-leucine
L-ornithine
L-taurine
l-tyrosine
L-valine
lactalbumin
Laxogenin
maca
macaenes
macamides
magnesium
maral root
Mate
Methylliberine
Methylxanthine
Milk Protein
Mineral ascorbate
Muira puama
Mushroom
Nitrous Malate (TM) Diarginine Malate
omega-3 fatty acids
Ornithine
ornithine alpha-ketoglutarate
Palatinose
paraxanthine
Peppermint
Peptides
Phosphatidic Acid
Phosphocreatine
Phytoecdysteroid
Piper nigrum
protein
pyridoxal-5-phosphate (P-5-P)
pyrroloquinoline quinone
pyruvate
Quinoa Protein
Rhaponticum
Rhodiola
ribose
robusta coffee
Safed musli
salt
sea salt
Sida cordifolia
spirulina
suma
Synephrine
Teacrine
Theacrine
Theobromine
Tongkat ali
tribulus
Tribulus Terrestris
Trichilia catigua
Trichopus zeylanicus
Turkesterone
Valine alpha-hydroxyisocaproate
vitamin C
Watermelon
Whey protein
Xanthine
Yerba mate
Yohimbine
Other health conditions supported by D-Aspartic Acid
Athletic and Exercise AidsBody Building
Exercise
Infertility
Sex Drive (low)
Testosterone (low)