13
aug
2015

b-vitamins

B vitamins are a class of water-soluble vitamins that play important roles in cell metabolism. Though these vitamins share similar names, research shows that they are chemically distinct vitamins that often coexist in the same foods. In general, supplements containing all eight are referred to as a vitamin B complex. Individual B vitamin supplements are referred to by the specific name of each vitamin (e.g., B1, B2, B3 etc.)

Further below a list of the B vitamins:

  • Vitamin B1 (thiamine)
  • Vitamin B2 (riboflavin)
  • Vitamin B3 (niacin or nicotinic acid)
  • Vitamin B5 (Pantothenic acid)
  • Vitamin B6 (pyridoxine, pyridoxal, pyridoxamine)
  • Vitamin B7 (biotin)
  • Vitamin B9 (folic acid)
  • Vitamin B12 (various cobalamins; commonly cyanocobalamin or methylcobalamin in vitamin supplements)

B vitamins are particularly concentrated in meat such as turkey, tuna and liver. Good sources for B vitamins include legumes (pulses or beans), whole grains, potatoes, bananas, chili peppers, tempeh, nutritional yeast, brewer's yeast, and molasses. Although the yeast used to make beer results in beers being a source of B vitamins,their bioavailability ranges from poor to negative as drinking ethanol inhibits absorption of thiamine (B1),riboflavin (B2), niacin (B3), biotin (B7), and folic acid (B9). In addition, each of the preceding studies further emphasizes that elevated consumption of beer and other alcoholic beverages results in a net deficit of those B vitamins and the health risks associated with such deficiencies.

The B12 vitamin is of note because it is not available from plant products, making B12 deficiency a legitimate concern for vegans. Manufacturers of plant-based foods will sometimes report B12 content, leading to confusion about what sources yield B12. The confusion arises because the standard US Pharmacopeia (USP) method for measuring the B12 content does not measure the B12 directly. Instead, it measures a bacterial response to the food. Chemical variants of the B12 vitamin found in plant sources are active for bacteria, but cannot be used by the human body. This same phenomenon can cause significant over-reporting of B12 content in other types of foods as well.

Another popular means of increasing one's vitamin B intake is through the use of dietary supplements. B vitamins are also commonly added to energy drinks, many of which have been marketed with large amounts of B vitaminswith claims that this will cause the consumer to "sail through your day without feeling jittery or tense."Some nutritionists have been critical of these claims, pointing out for instance that while B vitamins do "help unlock the energy in foods," most Americans acquire the necessary amounts easily in their diets.

Because they are soluble in water, excess B vitamins (such as may be ingested via supplements) are generally readily excreted, although individual absorption, use and metabolism may vary…"The elderly and athletes may need to supplement their intake of B12 and other B vitamins due to problems in absorption and increased needs for energy production. In cases of severe deficiency B vitamins, especially B12, may also be delivered by injection to reverse deficiencies. Both type 1 and type 2 diabetics may also be advised to supplement thiamine based on high prevalence of low plasma thiamine concentration and increased thiamine clearance associated with diabetes. Also, Vitamin B9 (folic acid) deficiency in early embryo development has been linked to neural tube defects. Thus, women planning to become pregnant are usually encouraged to increase daily dietary folic acid intake and/or take a supplement.

24
feb
pulizie-senza-detergenti
12
sep
borage

Borage

Borage (, Borago officinalis), also known as a starflower, is an annual herb in the flowering plant family Boraginaceae. It is native to the Mediterranean region and has naturalized in many other locales.

Traditionally borage was cultivated for culinary and medicinal uses, although today commercial cultivation is mainly as an oilseed. The seed oil is desired as source of gamma-linolenic acid (GLA), for which borage is the highest known plant-based source.

Borage is used as either a fresh...

16
jul
il-cedro-del-libano,-lavacchio

Il Cedro del Libano, Lavacchio

CURIOSITY:

The Cedar of Lebanon is a species of cedar. Belongs to the family of coniferous trees. Thousands of years ago, extensive forests of this tree covered mountain slopes around the Middle East. Today in its area of origin in the chain of Mount Lebanon survive only a few hundred specimens. It is the tree represented in the flag of Lebanon.

In the Old Testament it is said that with the Lebanon cedar wood were built the columns of Solomon's temple; always, the precious Cedar of...

10
oct
dill

Dill

Dill (Anethum graveolens) is an annual herb in the celery family Apiaceae. "Dill" is a Germanic word whose origin is unknown.

Fresh and dried dill leaves (sometimes called "dill weed" to distinguish it from dill seed) are widely used as herbs in Europe and central Asia.

Like caraway, the fernlike leaves of dill are aromatic and are used to flavor many foods such as gravlax (cured salmon) and other fish dishes, borscht and other soups, as well as pickles (where the dill flower is sometimes...

03
sep
vitamins-e-and-d

Vitamins E and D

Vitamin E is found in wheat germ, vegetable oils, legumes and pescce.
Is used against neurological disorders, cardiovascular, against premenstrual syndrome.
Promotes skin health.

We recommend a good soup at least once a week.

Vitamin D is found in fortified milk and fish.
The primary biological function of vitamin D is to maintain normal levels of calcium and phosphorus in the blood and promotes the absorption of calcium, helping to form and maintain strong bones and teeth growth.
Stimulates...

26
nov
laurel

Laurel

the laurel, which is called "daphne" is Greek, after the nymph's name. Apollo was heart-broken at the loss of Daphne and to remember her for ever, he made the laurel the symbol of tribute to poets. The laurel became therefore the symbol of the god.

The aromatic leaf from the bay laurel tree, it is an essential component of the classic bouquet garni: parsley, thyme and a bay leaf. The bittersweet, spicy leaves impart their pungent flavour to a variety of dishes and ingredients, making bay a...