Related Experiment Videos
Vitamin requirements for term infants: considerations for infant formulae
1University Department of Paediatrics, Sheffield Children's Hospital, Sheffield S10 2TH, UK.
Nutrition Research Reviews
|December 20, 2008
Summary
Determining optimal vitamin requirements for infant formulas is crucial. Current methods for assessing vitamin adequacy in infants need refinement, considering bioavailability and potential toxicity risks.
Area of Science:
- Nutritional Science
- Pediatric Nutrition
- Biochemistry
Background:
- Current vitamin adequacy criteria for neonates rely on circulating levels or enzyme activity, which may not fully reflect functional status.
- Infant formulas are increasingly being evaluated for specific vitamin inclusions, such as beta-carotene, prompting research into their necessity and benefits.
- Understanding vitamin absorption, metabolism, and bioavailability in infants is essential for establishing accurate dietary requirements.
Purpose of the Study:
- To evaluate current understanding of vitamin requirements in infant nutrition.
- To critically assess existing methods for determining vitamin adequacy in neonates.
- To identify research gaps and future directions for vitamin research in infant feeds.
Main Methods:
- Review of current scientific literature and expert opinion on vitamin requirements for infants.
- Analysis of existing criteria for vitamin adequacy, including biochemical and functional markers.
- Identification of areas requiring further research, such as bioavailability and toxicity.
Main Results:
- Existing methods for assessing vitamin adequacy in neonates have limitations and require development of better functional markers.
- Breast milk is considered a benchmark, but variations in bioavailability, season, and lactation stage necessitate careful comparison with formula.
- High vitamin intakes can pose toxicity risks, requiring careful consideration in formula recommendations.
Conclusions:
- Further research is needed to establish precise vitamin requirements for infant formulas, focusing on bioavailability, functional markers, and potential toxicity.
- Investigating the role of specific micronutrients, like beta-carotene, and understanding tryptophan-to-niacin conversion are key research priorities.
- There is a significant lack of data on biotin and pantothenic acid in breast milk and their impact on infant status, highlighting critical research gaps.
Related Concept Videos
01:29Drug Dosing: Infants and Children
Pediatric patient dosages diverge from adults due to disparities in body surface area, total body water, and extracellular fluid per kilogram of body weight. The dosing regimen considers the variations in pharmacokinetics and pharmacology across distinct age groups, encompassing preterm newborns, infants, young children, older children, and adolescents. Calculation of pediatric patient doses is predicated on determining body surface area, which exhibits a superior correlation with the child's...
01:23Pharmacokinetics in Pediatric Patients: Overview and Drug Absorption
Understanding the physiological differences in the pediatric population is crucial for effective pharmacotherapy. Neonates, infants, and children exhibit significant variations in gastric pH, gastric emptying time, intestinal transit time, and biliary function. These variations profoundly affect oral drug absorption, necessitating a nuanced approach to pediatric dosing.Neonates present with a unique physiological profile, having a gastric pH greater than 4 and faster and more irregular gastric...
01:30Vitamins
Vitamins, derived from the Latin word for life, are essential organic substances required in small quantities for optimal growth and overall well-being. Unlike other organic nutrients, vitamins don't act as sources of energy or building materials but rather facilitate these nutrients' utilization by the body. Vitamins are predominantly coenzymes, assisting enzymes in specific chemical actions, like the oxidation of glucose for energy involving B vitamins. Most vitamins are not produced in our...
01:07Teratogenicity
The ability of a drug to produce structural deformations and functional abnormalities in the developing embryo or the fetus is called teratogenicity, and the drug producing this effect is known as a teratogen. Teratogenic effects include stillbirth, miscarriage, intrauterine growth restriction, and neurocognitive delay. A teratogen may affect the embryo at different stages of development, which is important in determining the type and extent of the damage. During blastocyst formation, the early...
01:30Development of Human Microbiota
The human microbiota begins developing at birth and undergoes continual change as we age. Infancy marks a critical period of microbial sensitivity, offering a “window of opportunity” during which beneficial microbes help mature the immune system. By age three, children typically develop a more stable and diverse microbial community. Newborns acquire microbes from their immediate environment; vaginal delivery favors maternal vaginal microbes, while cesarean births favor microbes from the skin...
01:26Pharmacokinetics in Pediatric Patients: Drug Excretion
In pediatric medicine, understanding the renal function and drug elimination nuances is crucial for administering safe and effective treatments. Newborns, in particular, display markedly slower renal functions than adults, profoundly affecting how drugs are cleared from their bodies. This slower drug clearance requires clinicians to extend the dosing intervals for many medications to prevent drug accumulation and toxicity while ensuring therapeutic efficacy.One key area where these adjustments...