Northern Nutritionals

Author: Karline Jensen

  • Carnitine and Fatigue

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    Karline Jensen
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    L-carnitine is important for energy production, and a study found that supplementing with l-carnitine reduced symptoms of fatigue in some people with hypothyroidism (An et al., 2016).  The dosage used in the study was 990 mg twice a day for twelve weeks.  A few people experienced minor side effects like nausea and discomfort.    When…

  • Metabolomics in Personalized Nutrition

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    Karline Jensen
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    Metabolomics is a rapidly evolving field that involves the analysis of metabolites within biological systems; by capturing the metabolic profile of individuals, metabolomics offers insights into the underlying biochemical processes influenced by diet, genetics, and environmental factors, and enables the identification of metabolic pathways affected by diet, thereby facilitating the development of targeted dietary interventions.…

  • Beer and Exercise

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    Karline Jensen
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    A randomized controlled trial by de Moraes Pontes et al. (2022) asked whether drinking a beer after an exercise session would influence the recovery trajectory of the participants’ heart rate variability as control of the heart rate shifts from the sympathetic nervous system back to the parasympathetic resting state.  The authors cite quite a few…

  • Dietary Fiber for IBS

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    Karline Jensen
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    There is an article on dietary considerations for IBS (Algera et al., 2019) that you might find interesting.  The authors of this article extracted the findings from all the English-language research studies in the PubMed database on IBS and diet and wrote them up in a chronological summary describing the evolution of recommendations from 1977…

  • Prenatal Iron

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    Karline Jensen
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    Arija et al. (2019), in a prospective cohort study in Spain, found that children born to mothers who had taken prenatal iron supplements (14-30 mg/day) scored better on tasks designed to evaluate working memory and executive functioning at age 7 than those whose mothers had not taken prenatal iron.  Nguyen et al. (2021), in a…

  • Microbiome of Depression

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    Karline Jensen
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    Szabo de Edelenyi et al. (2021) wanted to begin testing the hypothesis that eating more fruits and vegetables would lower the amount of indole produced by gastrointestinal bacteria, resulting in a reduced risk for depression.  They selected a sample of 2,054 women ages 45-65 from within the participants of a larger prospective cohort study called…

  • Methylation

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    Karline Jensen
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    James et al. (2004) looked at metabolites of methylation in the blood of 20 autistic children and compared them with a control group of 33 healthy children.  They found that the autistic children had lower S-adenosylmethionine (SAM) and higher S-adenosylhomocysteine (SAH) compared to the control group (indicating impaired methylation), with the ratio of SAM to…

  • Dietary Pattern Metabolites

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    Karline Jensen
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    Tong et al.(2020) analyzed serum metabolites against adherence to the Mediterranean Diet and against cardiometabolic risk factors, in participants of the Fenland cohort study, to see which metabolites might be involved in the ability of the Mediterranean Diet to prevent cardiometabolic disease, citing Sofi et al. (2014) as an example of this preventative effect.  They…

  • Coenzyme Q10

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    Karline Jensen
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    Coenzyme Q10 is also called ubiquinone, because it is ubiquitous in the human body, found in the membranes of all of our cells.  In a 2018 randomized, double-blind, placebo-controlled trial, Zhang et al.1 looked at coenzyme Q10 supplementation in 40-61 year old Chinese people with high cholesterol to see which of several risk factors for…

  • Vitamin A

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    Karline Jensen
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    A report in the Cochrane Database of Systematic Reviews (Yang et al., n.d.) concluded that Vitamin A (200,000 IU on each of two consecutive days) reduced mortality from measles in children under the age of two.  In their review, participants who were given Vitamin A had shorter duration of pneumonia, diarrhea, fever, and hospitalization.  The…