L-karnityna

Slyszalam bardzo duzo o L-Karotynie. Prosze mi wytlumaczyc na czym polega jej dzialanie. Jakie sa plusy i minusy uzywania? Wielkie dzieki

Podejrzewam że połączyłaś L-karnitynę z karotenem i wyszła L-karotyna

Jeśli chodzi o L-karnitynę minimalnie wspomaga odchudzanie, minus to że jej efekt jest niewart wydanych na nią pieniędzy

tak, mam na mysli L-Karnityne

Można by wpisać do wyszukiwarki i poczytać, ale nie warto - L-karnityna jest strasznie droga a nie warta swojej ceny. Nie kupuj tego shitu.

więcej informacji w wyszukiwarce : http://l-karnityna.sfd.pl/ 

Czyli nie jest taka swietna jak mowia.....

jesli chodzi o cene.....wisz z Olimpu wogole sie nie oplaci, ja kupuje z Treca,ostatnuio byla promocja 90tabl/39zeta,mi to pomaga, tobie tez powinno,ale MUSISZ cwiczyc. pozdr

pomaga raczej ujemny bilans kaloryczny.. nie l-karnityna..

to moze sprawdzic sie w pewnym stoniu jedynie u osoob.. z niedoborem karnityny...

jedna z na 100% udowodnionych zalet l-karnityny to podnoszenie ruchliwości plemników po długotrwałym stosowaniu wysokich dawek (powyżej 3 miesięcy)

dla zainteresowanych:

'Fat Burning During Exercise: Can Ergogenics Change the Balance?
John A. Hawley, PhD
THE PHYSICIAN AND SPORTSMEDICINE - VOL 26 - NO. 9 - SEPTEMBER 98'

'(...)L-Carnitine Supplementation
Carnitine plays a central role in the metabolism of fatty acids by transporting them from the cytosol to the mitochondrial matrix for beta oxidation. Long-chain fatty acid oxidation in all tissues is carnitine dependent; therefore, hereditary and acquired carnitine deficiencies cause triglyceride to accumulate in the skeletal muscles, impair fatty acid utilization, and reduce exercise capacity. Carnitine supplementation can usually reverse these changes (10).

It has been hypothesized that carnitine supplementation in healthy people increases fatty acid transport into the mitochondria and subsequent oxidation. If this were true, supplementation would significantly benefit endurance athletes and individuals wishing to lose weight.

The normal carnitine pool in a healthy 70-kg adult is about 100 mmol; more than 98% resides in skeletal and cardiac muscle, 1.6% in the liver and kidneys, and only 0.4% in the extracellular fluid (11). More than 50% of the daily need for carnitine is normally supplied by the diet from meat, poultry, fish, and some dairy products; the rest is endogenously biosynthesized from methionine and lysine. Daily urine losses are usually less than 2% of the total body carnitine store.

Many well-controlled studies have examined the effects of carnitine supplementation on metabolism and athletic performance in moderately trained individuals (12,13) and well-trained athletes (14,15). The doses used in these studies have varied from 2 to 6 g/day, and the length of supplementation from 5 days to 4 weeks. The results of these and many other investigations (16) convincingly demonstrate that carnitine supplementation has no effect on fuel utilization at rest (12) or during exercise (12,14).

Because supplementation does not alter lipid metabolism during exercise, it is not surprising that the rate of muscle glycogen utilization does not change (15). Lactate metabolism is not reduced (12,14) and blood pH does not change during submaximal (15) or maximal (14) exercise. Even when carbohydrate availability has been compromised before exercise by reducing muscle glycogen stores, carnitine supplementation still fails to alter lipid metabolism during submaximal exercise (17).

Because of carnitine's role in fatty acid metabolism, it is not surprising that it has been targeted as a potential promoter of fat loss. Carnitine is vigorously marketed to athletes in sports that require making weight or maintaining low body fat (wrestling, rowing, gymnastics, bodybuilding). However, there is no scientific evidence that carnitine enhances fatty acid oxidation, helps reduce body fat, or helps athletes "make weight."

Finally, many studies have shown little or no loss of carnitine from skeletal muscle during low- or high-intensity exercise (16), suggesting that training does not substantially reduce muscle carnitine levels in healthy athletes eating conventional diets. Massive doses of carnitine increase muscle carnitine levels by only 1% or 2% (18). Therefore, there is little or no reason for moderately active individuals or athletes in hard training to take carnitine supplements.'

btw.. tyka %)

aye aye sir, zgadza sie