Testosteron og kost

[-Anders-]

I øvrigt forstår jeg ikke din kritik af studierne. Er det muligt at uddybe

Det er ikke studierne i sig selv der er dårlige. Det er hvordan de bliver brugt til at sælge et luderprodukt.

Folkene bag ZMA forsøger at argumentere for man skal bruge mere af et mineral fordi der er kamp om optagelse iblandt mineralerne. Det er korrekt at mineralerne "kæmper" om optagelse, men i studiet bliver der brugt VOLDSOMME mængder af det ene mineral for at vise at det hæmmer optagelsen af et andet mineral. Den voldsomme mængde er slet ikke relevant i den virkelige verden. Man får simpelthen ikke så store mængder.

Et andet af studierne viser nogle NFL fodboldspillere manglede noget zinc.... brug af steroider kan fucke resultatet af en test af zinc i blodet... Jeg har en idé om, at NFL spillere bruger steroider.... det kan muligvis være indbildning, men jeg tror det ikke ? :lol:

Plus man kan sagtens rette op på zinc-mangel ved at tilføje almindelig zinc, enten i form af kostændringer eller vitaminpiller. Der er ingen grund til at give extra penge et fup produkt.

Edited March 28, 2003 by -Anders-

[-Anders-]

PS.

jeg bliver ikke aggresiv, men jeg synes det er synd når folk bliver lokket til at købe ubrugelige produkter. Det er muligvis tilfældigt, men jeg har set en hvis person linke til reflex nutrition 3 gange hvoraf 2 af gangene har været til et produkt med ingen/tvivlsom effekt

[Mr. Fitness]

Det er muligvis tilfældigt, men jeg har set en hvis person linke til reflex nutrition 3 gange hvoraf 2 af gangene har været til et produkt med ingen/tvivlsom effekt

Det er faktisk ikke tilfældigt, men 100 % planlagt. Man kommer da ikke bare til at skrive det samme link tre gange.

Jeg har det bare sådan, at jeg kun henviser til produkter, som jeg har prøvet og som jeg har fået gode resultater med. For mig giver det ikke så meget mening at henvise til produkter, som man ikke kender til - så det holder jeg mig fra. Hvis jeg har nævnt ovennævnte link for mange gange, beklager jeg da meget. Jeg skal fremover holde mig fra at linke til noget som helst ;) og holde mig fra at anbefale nogle kosttilskud overhovedet - god kost giver ligeså gode resultater

Jeg er dog glad for, at det kun er de 2 ud af de 3 gange, at jeg har henvist til et produkt med ingen/tvivlsom effekt - jeg har så anbefalet et, der virkeligt har effekt - kanon

[Torben F.]

Interessante indlæg fra Bryan Hancock angående grøn the:

Green tea has compounds that block COMT (as mentioned above by Aaron_F). I stopped using as much green tea when I found that they were anti-androgenic. They not only block androgen at the receptor, thay also apear to down regulate androgen receptors.

I didn't mean to freak anybody out, it's just that the flavones (especially epigallocatechin gallate) are well known to reduce the actions of endogenous androgens (and estrogens) as well as even lowering testosterone levels themselves. Anyway, my point is that, you may never see any significant effect of drinking green tea on muscle gains. Then again, we know that it is having an antagonistic effect, however small, in a direction oposite to what we want with respect to testosterone. Cultures that consume a lot of green tea of also known to have fewer androgenic "manifestations" both normal (body hair, muscle mass, etc) as well as fewer pathologic manifestations (prostate problems, and other cancers associated with steroid hormones).

Fra denne tråd.

- Torben F

Edited March 30, 2003 by topper

[Torben F.]

Igen lidt fra Bryan Hancock omkring makrobalancen i forhold til test.

Your diet can effect Test and IGFBPs. IGFBPs dictate how much IGF-1 is actually available for your body. Too much protein relative will lower insulin, and thus available IGF-1 and free test levels. Too little fat will also lower test levels. Keeping fat at 30% of total calories is optimum for testosterone.

Citatet er taget herfra

Torben F

[Torben F.]

Fra http://www.nutrition.org

Undersøgelser der viser at rotter øger deres testosteron ved indtagelse af hvidløg.

Garlic Supplementation Increases Testicular Testosterone and Decreases Plasma Corticosterone in Rats Fed a High Protein Diet

Yuriko Oi1, Mika Imafuku, Chiaki Shishido, Yutaka Kominato*, Syoji Nishimura* and Kazuo Iwai

Laboratory of Nutrition Chemistry, Faculty of Home Economics, Kobe Women’s University, Suma-ku, Kobe 654-8585, Japan and * Riken Chemical Industry Limited Company, Fushimi-ku, Kyoto 612-8404, Japan

1To whom correspondence should be addressed. E-mail: [email protected].

The effects of garlic supplementation on protein metabolism were investigated by measuring testis testosterone and plasma corticosterone in rats fed diets with different protein levels. In Experiment 1, rats were fed experimental diets with different protein levels (40, 25 or 10 g/100 g casein) with or without 0.8 g/100 g garlic powder. After 28 d of feeding, testosterone contents in the testis were significantly higher and plasma corticosterone concentrations were significantly lower in rats fed 40 and 25% casein diets with garlic powder than in those fed the same diets without garlic powder . Urinary excretion of 17-ketosteroid (an index of testosterone), nitrogen balance and hepatic arginase activity were significantly higher in rats fed the 40% casein diet with garlic powder than in the 40% casein controls. In Experiment 2, the effect of diallyldisulfide (a major volatile sulfur-containing compound in garlic) on the secretion of luteinizing hormone (LH) from the pituitary gland, which regulates testosterone production in the testis, was investigated in anesthetized rats. Plasma LH concentration increased dose dependently after administration of diallyldisulfide (P < 0.01, r = 0.558). These results suggest that dietary supplementation with 0.8 g/100 g garlic alters hormones associated with protein anabolism by increasing testicular testosterone and decreasing plasma corticosterone in rats fed a high protein diet.

Key Words: garlic • diallyldisulfide • testosterone • corticosterone • rats

[Full Text of Oi et al.] [Reprint (PDF) Version of Oi et al.]

Link til artiklen

- Torben F