#ChildHealth #Metabolism #VitaminB12 #Folate #Homocysteine #Obesity
Childhood obesity is a rapidly growing public health concern worldwide.
According to the WHO, the number of overweight or obese children and
adolescents has increased tenfold in recent decades. This rise is linked to
lifestyle changes, including increased consumption of ultra-processed foods and
decreased physical activity.
The balance between
vitamin B12, folates, and homocysteine (Hcy) plays a
crucial role in maintaining overall health. These biomarkers are key players in
DNA synthesis and
protein metabolism. They also contribute to
inflammation
regulation, which is essential for children's growth and development.
However, in obese children, this balance appears to be disrupted. Hcy
accumulation is
associated with chronic inflammation, oxidative stress, and
endothelial dysfunction—key factors in obesity. While these links are
well-documented in adults, their impact on children remains poorly understood.
Gaining a better understanding of these imbalances could help anticipate
metabolic complications and improve the management of childhood obesity.
This study explores
the impact of variations in vitamin B12, folate, and
homocysteine levels in obese and non-obese children and adolescents. Based on
data from international studies, it aims to
clarify their role in the metabolic
complications of childhood obesity and identify potential strategies for more
effective management.
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Obesity and vitamins: a hidden imbalance?
A total of
20 studies, including
7,791 children and adolescents, were
analyzed. Subgroup analyses examined variations based on study design,
measurement methods, and geographic regions.
The study results show
no significant difference in vitamin B12 levels
between obese and non-obese children and adolescents, nor any notable
difference in folate levels. However, obese children have
significantly higher
Hcy levels than their non-obese counterparts. These findings suggest that while
vitamin B12 and folates do not vary with body weight, elevated Hcy in obese
children could serve as a marker of metabolic stress and an increased
cardiovascular risk.
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Homocysteine: the silent enemy of childhood obesity?
Childhood obesity is a rapidly increasing global condition, with
early
metabolic and cardiovascular consequences. Among the many biological imbalances
observed in obese children and adolescents, the metabolism of vitamin B12,
folates, and homocysteine may play a key role, although their exact involvement
remains uncertain.
One of the main challenges in studying these biomarkers is the
variability of reported results in the literature. This inconsistency makes it
difficult to identify reliable biological markers that could help better
understand the underlying mechanisms of pediatric obesity and its
complications.
The goal of this study was to analyze and synthesize the available data
on these biomarkers to
determine their impact on obesity and metabolism and to
identify potential early risk factors.
The findings reveal
a significant increase in Hcy levels in obese
children. However, vitamin B12 and folate levels do not significantly differ
between the studied groups. These results suggest that Hcy could serve as a
relevant
metabolic biomarker in childhood obesity, highlighting a potential
link between obesity, inflammation, and cardiovascular risk.
This study has some limitations, including
high heterogeneity among the
analyzed research, methodological differences, and a lack of dietary and
inflammatory data on participants. Additionally,
the analysis does not assess
biomarker changes over time. Beyond long-term monitoring, these results
highlight the need for studies incorporating
nutritional data to better
understand the relationship between homocysteine, obesity, and metabolic risks.
Identifying these interactions more precisely could help develop
more effective
prevention and management strategies. Read next: The decline in youth physical fitness: a major public health challenge
