CHILD'S MULTIVITAMIN AND MINERAL

Betacaroten : Beta-carotene is a type of nutrient called a carotenoid that your body can use to make vitamin A. Your body only turns beta-carotene to vitamin A when it is needed. Vitamin A is an important fat-soluble vitamin that supports your immune system, vision, reproductive health, and fetal growth..
 
Thiamine nitrate (Vit B1): Thiamine, also known as thiamin or vitamin B1, is one of the B vitamins. Thiamine helps to turn food into energy and to keep the nervous system healthy. Your body is not able to make thiamine for itself.
 
Riboflavine (as Sodium Phosphate ) : they function as coenzymes for many oxidases and redunctases such as cytochrome e reductase, D- and L-amino acid oxidases, xanthine and aldehyde oxidase, succinic dehydrogenase, glucose oxidase and fumaric dehydrogenase. Riboflavin is also involved with pyridoxine in the conversion of tryptophan to nicotinic acid and is most important in the respiration of poorly vascularized tissues such as the cornea of the eye. Riboflavin is involved in the retinal pigment during light adaptation and lack of it causes impaired vision and photophobia in experimental animals
 
Nicotinamide  : Nicotinamide mononucleotide (NMN) is a type of molecule called a nucleotide. Nucleotides play many roles in your body, including as the building blocks of DNA.
Within your cells, NMN is converted into another molecule known as nicotinamide adenine dinucleotide (NAD). Your body needs NAD for a variety of functions involved in metabolism and energy production.
 
Calcium Pantothenate : Calcium Pantothenate, also known as vitamin B5, is a vital nutrient that is often referred to as the "anti-stress vitamin."Calcium Pantothenate targets a broad range of biological processes. It is crucial in synthesizing coenzyme-A (CoA), an enzyme necessary for fatty acid metabolism and the Krebs cycle, which generates cellular energy. Current research is exploring its potential in treating conditions like adrenal insufficiency, stress-related disorders, and metabolic syndromes, although the most common indication remains as a dietary supplement to prevent or treat pantothenic acid deficiency.
 
Pyridoxine hydrochloride ( Vit B6): Pyridoxal phosphate is the coenzyme, codecarboxylase, involved in the decarboxylation of amino acids. It is also the co-factor of the 22 different transaminases present in animal tissues. Many neuro hormones require pyridoxal phosphate as a coenzyme in their synthesis. Pyridoxine is also involved in fat metabolism, especially of the essential fatty acids. It is involved in the synthesis of messenger RNA which determines amino acids sequence in polypeptide synthesis. Pyridoxine plays a most important role in protein metabolism
 
D-alpha-Tocopheryl Acetate ( Vit E): It acts as an antioxidant that protects cells from damage, supports immune function, softens and moisturizes skin, and strengthens the skin barrier. The tocopherols act as extra and intracellular antioxidants to maintain homeostasis of labile metabolites in the cell and tissue plasma. As physiological antioxidants, these usually protect oxidizable vitamins and labile unsaturated fatty acids.The tocopherols act as free radical traps to stop the chain reaction during peroxide formation and stabilize unsaturated carbon bonds of polyunsaturated fatty acids and other long-chain labile compounds.
Vitamin E is involved in the maintenance of normal blood capillary permeability and the integrity of heart muscle.
 
Ascorbic acid ( Vit C) : L-ascorbic acid acts as a biological reducing agent in hydrogen transport. It is involved in many enzyme systems for hydroxylation. It is involved in the detoxification of aromatic drugs and also acts in the production of adrenal steroids. Ascorbic acid is necessary for the formation of hydroxy proline which is a constituent of collagen, a component of intercellular material in bones and soft tissues. Ascorbic acid plays a synergistic role with vitamin E as intracellular antioxidants and free radical traps.
 
Biotin ( Vit H) : Biotin is required in several specific carboxylation and decarboxylation reactions, including the carboxylation of pyruvic acid to form oxaloacetic acid. It is part of the coenzyme of several carboxylating enzymes fixing CO2 such as propionyl coenzyme A involved in the conversion of propionic acid to succinic acid in methylmalonyl coenzyme A. Biotin is also involved in the conversion of acetyl CO2 to malonyl coenzyme A in the formation of long chain fatty acids.
 
Folic Acid : Folic acid is required for normal blood cell formation and is involved as a coenzyme in one-carbon transfer mechanisms. Folic acid is involved in the conversion of megaloblastic bone marrow to normoblastic type. It has a role in blood glucose regulation and improves cell membrane function and hatchability of eggs.
 
Calcium ( as carbonate 62.5 mg and pantothenate 5mg ) : Calcium is the most abundant mineral in the human body. About 99% of it is stored in bones and teeth to give them strength. The remaining 1% in blood and tissues supports vital tasks like :

 
Iron (as ferrous gluconate) : Iron is a vital mineral that helps your body to produce hemoglobin, a protein in your red blood cells. Hemoglobin carries oxygen from your lungs to the rest of your body. Iron also helps create the protein myoglobin, which provides oxygen to your muscles.
 
Zinc (as sulfate)  : Zinc is vital for normal immune system function and wound healing. In addition, the body needs zinc for bone growth, the production of hormones such as insulin and testosterone, sperm production, and fetal development. Your body also needs zinc in order to smell and taste. The body cannot store zinc, so you must get it daily from food or supplements
 
Magnesium (as sulfate dried) : Magnesium is a key mineral that helps with over 300 chemical reactions in the human body. It keeps your muscles and nerves working well, builds strong bones, makes energy, and helps control your blood pressure and blood sugar
 
Potassium (as sulfate)  : Potassium is an essential mineral and electrolyte that regulates fluid balance, transmits nerve signals, and controls muscle contractions, including the steady beating of the heart. Most of the body's potassium lives inside cells, working constantly to maintain normal cellular function and healthy blood pressure.
 
Manganese ( as sulfate ) : Manganese is an essential trace mineral that the body needs for normal growth, metabolism, and antioxidant defense. It helps form strong bones, supports the nervous system, and aids in processing carbohydrates, amino acids, and cholesterol.

Betacaroten

Beta-carotene is absorbed into the cells of the intestinal lining by lipid transporters. Previtamin A carotenoids from plants (such as beta-carotene) are less efficient (20–50%) and are easily transformed.
The enzyme BCO1 (or BCMO1) performs central cleavage at the 15.15’ double bond, transforming one beta-carotene molecule into two retinal molecules (retinaldehyde). Retinal is then converted to retinol (the alcoholic form of vitamin A).  Retinol is attached to a fatty radical to become a retinyl ester, which is packaged into chylomicrons for transport through the lymphatic system and stored primarily in the liver.  

Retinol is released from the liver into the bloodstream and binds to specialized proteins such as Retinol-Binding Protein (RBP) and transthyretin. This release depends on the amount of protein and zinc in the body.

Vitamin A consists of three biologically active molecules, retinol, retinal (retinaldehyde), and retinoic acid, all derived from the plant precursor molecule, β-carotene.
Vitamin A metabolizes into important bioactive forms depending on tissue needs, including 11-cis-retinal (for vision) and all-trans-retinoic acid (for cell differentiation and growth). Oxidation and conjugation take place mainly in the liver and target tissues to form less active metabolites

The metabolites of vitamin A are excreted mainly in the urine (renal tract) and through feces (through bile from the liver). When the intake exceeds the liver's reserve capacity, the system can become saturated, leading to vitamin A poisoning due to elevated free levels in the circulatory system
                                
Thiamine nitrate (Vit B1)

   Active Transport: Dominant at low doses; historically estimated to limit single-dose absorption to 4.8–8.3 mg, though newer data suggests passive pathways significantly increase uptake at higher doses. 
   Passive Diffusion: Becomes significant at pharmacological doses, allowing for linear, non-saturable absorption up to 1500 mg. 

   Distribution: Thiamin is widely distributed in the body, with limited storage (approximately 20–30 mg total). It crosses into red blood cells rapidly, maintaining equilibrium between plasma and whole blood. 
   Half-Life: The elimination half-life is short, ranging from 1 to 12 hours (specifically ~2.97–4.78 hours in high-dose studies), necessitating regular intake or dosing. 

Distribution involves rapid conversion into flavocoenzymes; riboflavin is phosphorylated to flavin mononucleotide (FMN) in the gastrointestinal mucosa, erythrocytes, and liver, which is then converted to flavin adenine dinucleotide (FAD) in the liver.  In blood plasma, about 60% of 

Oral absorption is rapid, with peak plasma concentrations typically reached within 0.75 to 3 hours after ingestion. 

The elimination half-life is dose-dependent, ranging from approximately 1.5 hours for a 1-g dose to 7–9 hours for 4–6 g doses. 

Nicotinamide undergoes extensive hepatic metabolism, with primary metabolites including nicotinamide N-oxide, 2-pyridone, and 1-methylnicotinamide. It distributes widely.  
                                                                       
Calcium Pantothenate (Vit B5)                            
 -  Absorption and Transport : Pantothenic acid (Vitamin B5) is rapidly absorbed in the intestine, primarily via a saturable, sodium-dependent active transport system.  At typical dietary levels, bioavailability is approximately 50%; however, at high doses, the transport system saturates, and absorption occurs via passive diffusion.  Peak plasma concentrations are reached within 1 to 2 hours post-dose, and food consumption can delay this absorption peak by approximately 2 hours. 
- Distribution and Metabolism : Upon absorption, pantothenic acid is delivered directly into the bloodstream and distributed into extracellular fluids. It is rapidly taken up by tissues, including the liver, where it is converted into coenzyme A (CoA) and phosphopantetheine.  The synthesis of CoA is regulated by pantothenate kinase, which is inhibited by end products CoA and acyl CoA. In humans, the vitamin is widely distributed, with normal whole-blood concentrations ranging from 1.6 to 2.7 μmol/L. 
- Excretion : The primary route of elimination is urinary excretion, with approximately 70% of an oral dose excreted unchanged.  Low urinary excretion (<1 mg/day) suggests deficiency.  
                      
Pyridoxine hydrochloride ( Vit B6)