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Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1954 1
1975 3
1976 4
1977 5
1978 3
1979 1
1980 3
1981 3
1982 2
1983 5
1984 4
1985 1
1986 2
1987 4
1988 3
1989 4
1990 4
1991 4
1992 11
1993 9
1994 12
1995 8
1996 4
1997 6
1998 10
1999 3
2000 10
2001 5
2002 8
2003 12
2004 9
2005 7
2006 12
2007 10
2008 14
2009 6
2010 9
2011 10
2012 15
2013 12
2014 10
2015 12
2016 15
2017 14
2018 24
2019 15
2020 25
2021 26
2022 15
2023 20
2024 20
2025 22
2026 11

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438 results

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Page 1
Vitamin B12 deficiency.
Green R, Miller JW. Green R, et al. Vitam Horm. 2022;119:405-439. doi: 10.1016/bs.vh.2022.02.003. Epub 2022 Mar 11. Vitam Horm. 2022. PMID: 35337628
Of the water-soluble vitamins, vitamin B12 (B12) has the lowest daily requirement. It also has several unique properties including a complex pathway for its absorption and assimilation requiring intact gastric and terminal small intestinal function, an enterohepatic …
Of the water-soluble vitamins, vitamin B12 (B12) has the lowest daily requirement. It also has several unique properties including a …
MTHFR Gene Polymorphisms: A Single Gene with Wide-Ranging Clinical Implications-A Review.
Araszkiewicz AF, Jańczak K, Wójcik P, Białecki B, Kubiak S, Szczechowski M, Januszkiewicz-Lewandowska D. Araszkiewicz AF, et al. Genes (Basel). 2025 Apr 8;16(4):441. doi: 10.3390/genes16040441. Genes (Basel). 2025. PMID: 40282401 Free PMC article. Review.
The enzyme 5,10-methylenetetrahydrofolate reductase (MTHFR) catalyzes the conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate, a process essential for the methylation of homocysteine to methionine. Polymorphisms in the MTHFR gene can reduce enzyme acti …
The enzyme 5,10-methylenetetrahydrofolate reductase (MTHFR) catalyzes the conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydro …
Nothing Boring About Boron.
Pizzorno L. Pizzorno L. Integr Med (Encinitas). 2015 Aug;14(4):35-48. Integr Med (Encinitas). 2015. PMID: 26770156 Free PMC article. Review.
As the current article shows, boron has been proven to be an important trace mineral because it (1) is essential for the growth and maintenance of bone; (2) greatly improves wound healing; (3) beneficially impacts the body's use of estrogen, testosterone, and vitamin D; (4) boost …
As the current article shows, boron has been proven to be an important trace mineral because it (1) is essential for the growth and maintena …
The Anabolic Response to Plant-Based Protein Ingestion.
Pinckaers PJM, Trommelen J, Snijders T, van Loon LJC. Pinckaers PJM, et al. Sports Med. 2021 Sep;51(Suppl 1):59-74. doi: 10.1007/s40279-021-01540-8. Epub 2021 Sep 13. Sports Med. 2021. PMID: 34515966 Free PMC article. Review.
Most plant-based proteins have a low essential amino acid content and are often deficient in one or more specific amino acids, such as lysine and methionine. However, there are large differences in amino acid composition between various plant-derived proteins or plant-base …
Most plant-based proteins have a low essential amino acid content and are often deficient in one or more specific amino acids, such as lysin …
Evaluation of dietary protein and amino acid requirements: a systematic review.
Burstad KM, Lamina T, Erickson A, Gholizadeh E, Namigga H, Claussen AM, Slavin JL, Teigen L, Hill Gallant KM, Stang J, Steffen LM, Harindhanavudhi T, Kouri A, Duval S, Butler M. Burstad KM, et al. Am J Clin Nutr. 2025 Jul;122(1):285-305. doi: 10.1016/j.ajcnut.2025.04.017. Epub 2025 Jun 2. Am J Clin Nutr. 2025. PMID: 40610129
OBJECTIVES: This review assesses the evidence on requirements for average daily dietary protein and individual indispensable amino acid intake for healthy individuals by life stage and sex. ...For children/adolescents, 7 studies examined requirements f …
OBJECTIVES: This review assesses the evidence on requirements for average daily dietary protein and individual indispensable a …
Dietary cysteine reduces the methionine requirement in men.
Di Buono M, Wykes LJ, Ball RO, Pencharz PB. Di Buono M, et al. Am J Clin Nutr. 2001 Dec;74(6):761-6. doi: 10.1093/ajcn/74.6.761. Am J Clin Nutr. 2001. PMID: 11722957 Clinical Trial.
OBJECTIVE: The goal of the present study was to determine whether dietary cysteine could reduce the requirement for methionine in men consuming diets with and without cysteine. ...The mean and population-safe methionine requirements in the prese …
OBJECTIVE: The goal of the present study was to determine whether dietary cysteine could reduce the requirement for methion …
Methionine-supplemented longevity diet increases growth hormone, GLP-1, and FGF21; reduces frailty; and promotes healthspan.
Fanti M, Brandhorst S, Navarrete G, Diaz A, Giuliani G, Chowdhury D, Antunes GC, Morgan TE, Dubeau L, Villani V, Perin L, Malik VS, Hu FB, Longo VD. Fanti M, et al. Cell Metab. 2026 Jun 23:S1550-4131(26)00225-1. doi: 10.1016/j.cmet.2026.05.015. Online ahead of print. Cell Metab. 2026. PMID: 42335894
A cross-sectional analysis of epidemiological data from over 200,000 men and women indicates that those with the highest animal protein intake tended to have a healthier lifestyle but had approximately double the prevalence of type 2 diabetes compared with those in the low …
A cross-sectional analysis of epidemiological data from over 200,000 men and women indicates that those with the highest animal protein i …
Dietary methionine requirement of the Chinese egg-laying duck.
He JH, Li JB, Gao FX, Liu QH, Shu JC, Liu DJ. He JH, et al. Br Poult Sci. 2003 Dec;44(5):741-5. doi: 10.1080/00071660310001643769. Br Poult Sci. 2003. PMID: 14965096
1. The dietary methionine requirement of egg-laying ducks was assessed by feeding diets supplemented with graded levels of DL-methionine (0, 4, 8, 12, 16 g/kg dietary protein) for 8 weeks. ...Dietary methionine requirement f …
1. The dietary methionine requirement of egg-laying ducks was assessed by feeding diets supplemented with graded levels …
Selenium.
Alexander J. Alexander J. Novartis Found Symp. 2007;282:143-9; discussion 149-53, 212-8. Novartis Found Symp. 2007. PMID: 17913229 Review.
Selenium in the form of selenomethionine can also unspecifically substitute for methionine in other proteins. No specific deficiency condition has been described in humans. ...Excess selenium can produce selenosis in humans affecting liver, skin, nails and hair. Recommende …
Selenium in the form of selenomethionine can also unspecifically substitute for methionine in other proteins. No specific deficiency …
Disorders of Intracellular Cobalamin Metabolism.
Sloan JL, Carrillo N, Adams D, Venditti CP. Sloan JL, et al. 2008 Feb 25 [updated 2021 Dec 16]. In: Adam MP, Bick S, Mirzaa GM, Pagon RA, Wallace SE, Amemiya A, editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993–2026. 2008 Feb 25 [updated 2021 Dec 16]. In: Adam MP, Bick S, Mirzaa GM, Pagon RA, Wallace SE, Amemiya A, editors. GeneReviews® [Internet]. Seattle (WA): University of Washington, Seattle; 1993–2026. PMID: 20301503 Free Books & Documents. Review.
Long-term management focuses on improving the metabolic derangement by lowering plasma tHcy and MMA concentrations and maintaining plasma methionine concentrations within the normal range. Gastrostomy tube placement for feeding may be required; infantile spasms, sei …
Long-term management focuses on improving the metabolic derangement by lowering plasma tHcy and MMA concentrations and maintaining plasma …
438 results