Doctor’s Best – Multi-Vitamin

with VITASHINE D3 and Quatrefolic

What is Doctor’s Best Multi-Vitamin?
Doctor’s Best Multi-Vitamin provides the full range of vitamins and minerals proven essential for health. It is a vitamin-mineral dietary supplement formulation fully optimized for absorption and utilization by individuals of all backgrounds and lifestyles. Doctor’s Best Multi-Vitamin is solidly grounded in the most current nutritional research, and provides key vitamins and minerals in their safest, best tolerated, and most biochemically active forms.
How does it work?
The many vitamins, essential minerals, and other important nutrients in Best Multi-Vitamin include:
Vitamin A (as retinyl palmitate) is crucial for the integrity of the delicate cell layers (epithelia) that line the intestinal tract, lungs, and sinuses. Vitamin A is also crucial for healthy embryonic development and for the eye to function. Additionally, Vitamin A facilitates the body’s capacity to produce antibodies and new immune cells.
Vitamin C (as ascorbic acid) is essential for numerous enzymatic reactions, including the synthesis of neurotransmitters and production of collagen molecules, which strengthen the body’s connective tissues. Humans cannot make ascorbic acid and therefore must obtain it from the diet.
Vitamin D (as D3, cholecalciferol, plant source) is important for bone strength and is well established. However, Vitamin D3 is also very important for the body’s other organ systems. This formulation supplies vegan-friendly cholecalciferol at a potency that is safe long-term and respects the need for higher D3 intakes to support optimal well-being.
Vitamin E (as alpha, beta, gamma, delta tocopherols) is the major antioxidant protector for membranes, the most dynamic cell zones. It helps protect omega-3s, phospholipids, and coenzyme Q10 against damage. This formulation provides not only the alpha-tocopherol form but also the beta-, gamma-, and delta-tocopherols, to better represent the spectrum of vitamin E present in foods.
Vitamin K (as K2, menaquinone-7 or MK-7) is crucial for healthy calcium metabolism and is necessary for integrating calcium into bone and preventing deposition of calcium into blood vessel walls and other soft tissues. Vitamin K2 also supports the generation of energy by the mitochondria within the body’s cells. The menaquinone-7 (MK-7) in Doctor’s Best Multiple has high measured K2 activity.
Thiamin (Vitamin B1) is essential for the body’s cells to make energy and to metabolize amino acids and carbohydrates (including blood glucose). Thiamin is especially important for managing the modern high-carbohydrate diet, which has been linked to “high-calorie malnutrition.
Riboflavin (Vitamin B2) is a cofactor for various mitochondrial enzymes and therefore also essential for the body to make energy. Riboflavin is necessary for an enzyme that is involved in the redox cycle of glutathione, which is important in protection against reactive oxygen species. Riboflavin also supports the metabolism of vitamin B6, folate, niacin, and iron.
Niacin and Niacinamide (Vitamin B3) are metabolically active and this formulation uses less niacin in order to minimize skin flushing. Niacinamide does not cause flushing and is used by the body to form coenzymes that generate and use energy.
Vitamin B6 (as pyridoxine hydrochloride) is essential for at least 100 enzymes that metabolize amino acids, fatty acids, and carbohydrates. It is particularly vital for the brain’s early development and for its production of various chemical transmitters.
Folate (as methyltetrahydrofolate or MTHF, Quatrefolic brand) is necessary in the synthesis of DNA and RNA, proper cell division, and the metabolism of amino acids. One of the most important folate-dependent reactions is the conversion of the amino acid homocysteine to methionine.
Vitamin B12 (cobalamin, as methylcobalamin or methyl-B12) is necessary for proper red blood cell formation, neurological function, and DNA synthesis. It works very closely with folate to support methyl metabolism and recycle homocysteine.
Biotin is attached at the active site of five enzymes, known as carboxylases that are involved in the metabolism of fatty acids and amino acids and the formation of glucose. Additionally, the attachment of biotin to histones is involved in regulating DNA replication and transcription as well as cellular proliferation and other cellular responses.
Pantothenic acid (as calcium pantothenate, “Vitamin B5”) is needed to make coenzyme A (CoA), a fundamental metabolic factor. The body’s cells use CoA to make amino acids, proteins and hormones, metabolize fats into useful fatty acids, and build cell membranes.
Calcium and Magnesium have a “yin-yang” relationship with each helping to balance the actions of the other. Low calcium concentration in the blood can be caused by low blood magnesium. This formulation supplies both magnesium and calcium to help ensure a favorable balance.
Iodine (as potassium iodide) is an essential component of the thyroid hormones that help regulate the body’s metabolism. Thyroid hormones are also important for proper bone and brain development during pregnancy and infancy.
Zinc (as citrate) is present in cells throughout the body and is necessary to make proteins and DNA. It aids the immune system in fighting off bacteria and viruses and helps wounds heal. Zinc supports growth and development during pregnancy, childhood, and adolescence.
Copper (as glycinate) along with zinc support the antioxidant enzyme superoxide dismutase. Copper is also essential for energy production, neurotransmitter synthesis, connective tissue formation, iron metabolism, and red blood cell production.
Selenium (as sodium selenite) is nutritionally essential for humans. Selenium proteins are involved in protection from oxidative damage, DNA synthesis, thyroid hormone metabolism, reproduction, and immunity. The sodium selenite in this formulation is hypoallergenic and therefore extremely well tolerated.
Manganese (as glycinate) is essential for another type of superoxide dismutase enzyme, which is located within the mitochondria and helps neutralize oxygen free radicals before they can do harm. Manganese is also used for the metabolism of cholesterol, carbohydrates, and amino acids; and to produce bone matrix components (proteoglycans).
Chromium (as picolinate) is essential for blood sugar metabolism. The chromium picolinate in this formulation is very well absorbed, helps cope with carbohydrate cravings, and supports healthy mood management.
Molybdenum (as glycinate) is a cofactor for various human enzymes that are responsible for chemical transformations in the global carbon, nitrogen, and sulfur cycles. These enzymes are necessary for the metabolism of sulfur-containing amino acids, contribute to the plasma antioxidant capacity of blood, and are involved in drug and toxin metabolism.
Potassium (as citrate) is the principal positively charged ion (cation) inside of cells, while sodium is the principal cation outside of cells. The concentration differences between these two cations across cell membranes create an electrochemical gradient known as the membrane potential.
Choline (as bitartrate) supports the production of acetylcholine an important neurotransmitter involved in muscle control, memory, and many other functions. Choline is also important for cell membrane integrity, lipid transport and metabolism, and as a source of methyl groups for methylation reactions.
Lutein and Zeaxanthin are found in the retina of the human eye and protect against damage by light and harmful reactive oxygen species and improve visual acuity. They have also been associated with reduced risks of age-related macular degeneration and cataracts.
Other nutrients in this formulation include boron, which supports calcium and magnesium metabolism, especially for bone health; and silicon, which supports connective tissue and bone integrity.