Hi Anthe,
Thank you for your question.
"Carnitine is an amino acid and is made by the body. Carnitine is used
to help supply energy to muscles. Inside cells carnitine moves certain
fatty substances (long-, medium-, and short-chain fatty acids) in and
out of parts of cells. These fatty acids are used as fuels.
* SOURCES
A rule of thumb, "foods of animal origin contain substantial amounts
of carnitine, whereas foods of plant origin contain very little", says
biophysicist Chester Myers. Red meats are the richest source of
carnitine. In comparison, milk, chicken and fish contain 10 to 40
times less carnitine than red meats. Although asparagus, avocados and
peanut butter contain more carnitine than most fruits and vegetables,
the amount of carnitine in those fruits/vegetables is very, very
small. For the average healthy person in North America and the EC
"about 70 to 80% of carnitine in food is absorbed."
http://www.aegis.com/pubs/catie/1994/CATI4702.html
"Sources
Foods of animal origin eg meat are rich in L-Carnitine in contrast to
plant derived foods eg vegetables. Expressed in mg per 100 g (solid
food) or 100 ml (liquid), beef has 93, chicken breast 3.8, whole milk
3.2, whole wheat bread 0.36, white bread 0.14, green peas 0.006 and
orange juice 0.002 (1)."
http://www.horleys.com/html/issue_2_carn.html
"L-carnitine also can be derived from the diet. The average
nonvegetarian American diet provides an adequate 100–300 mg of
L-carnitine daily. Animal tissues such as beef and pork muscle
generally have high levels of L-carnitine, while plant-derived foods
are usually poor sources (see Table 1). Dairy products also tend to be
poorer sources of L-carnitine. Sheep, lamb, and beef muscle contain
approximately 210, 78, and 64 mg L-carnitine per 100 g of the edible
fraction, respectively. Chicken muscle tissue has much less
L-carnitine, only 8 mg per 100 g of the edible fraction. Lamb liver
and cow’s milk have only 3 mg and 2 mg L-carnitine per 100 g of edible
food, respectively. Rice, which is a staple in many Eastern cultures,
contains only 0.06 mg L-carnitine per 100g of the edible fraction. As
much as 35 to 40 percent of the L-carnitine content of rice is
destroyed during cooking. 4 Although all mammals studied so far can
synthesize some L-carnitine, eating a strict vegetarian diet may
deprive some tissues of the required amounts of this essential
cofactor, particularly during exercise, stress, or various disease
states."
http://www.nhir.com/tests/l_carnitine.pdf
"L-CARNITINE IN FUNCTIONAL FOOD
Gone is the era when L-Carnitine could only be found to any
significant extent in tablets and capsules. Nowadays, throughout the
world, major food companies are beginning to introduce functional food
products with L-Carnitine in the market. It can be found in energy
drinks, probiotic drinks, liquid concentrates, biscuits, bread, energy
bars and infant formula and mineral water, to mention but a few
products."
http://www.teknoscienze.com/agro/ins_agro/top/sp_hglts/l_carnitine.pdf
"Carnitine Supplements
Although there is no dietary requirement for carnitine, a small number
of individuals have a genetic defect that prevents the body from
making this compound. Additionally, liver, brain, and kidney diseases
can hinder carnitine production. Certain medications such as
antiseizure drugs may also reduce carnitine levels. Infants on
formulas that do not contain carnitine (i.e., non-milk-based formulas)
should be supplemented with carnitine to the levels found in
breastmilk. Carnitine supplements are not recommended for children.
L or D?
Amino acid names on supplement labels are frequently preceded by the
letters "L" or "D." This refers to the chemical form of the amino
acid. Those with the "L" in their name are the most similar to amino
acids in the body, and are therefore preferable over the "D" forms.
There are two Carnitine supplements that are most recommended by the
nutritionists: Acetyl L-Carnitine 500mg from Jarrow Formulations and
L-Carnitine 250 mg from TwinLab for their great price and high quality
Ingredients."
http://www.whyvitamins.com/others/amino-acid-carnitine.html
I hope this information is useful!
regards,
Jackburton-ga
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Search terms used:
"L-Karnitine", "L-Carnitine", Carnitine "in food", "L-carnitine" food |
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