scholarly journals Insufficient intake of alpha-linolenic fatty acid (18:3n-3) during pregnancy and associated factors

2017 ◽  
Vol 30 (4) ◽  
pp. 443-453
Author(s):  
Letícia Garcia VASCONCELOS ◽  
Caroline de Barros GOMES ◽  
Maíra Barreto MALTA ◽  
Isaias DICHI ◽  
Maria Helena D’Aquino BENÍCIO ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Pregnant Women ◽  
Linolenic Acid ◽  
Dietary Lipid ◽  
Omega 3 ◽  
Alpha Linolenic Acid ◽  
Binary Logistic Regression Model ◽  
Maternal Characteristics ◽  
Acid Intake ◽  
Linolenic Fatty Acid

ABSTRACT Objective: To analyze alpha-linolenic fatty acid intake in two cohorts of pregnant women, and to identify factors associated with alpha-linolenic acid intake. Methods: This is a cohort study involving pregnant women with low obstetric risk (N=353) in public health system from a municipality of São Paulo state, Brazil. In each trimester, two 24-hour food recalls were collected. Descriptive analyses of dietary lipid profiles were performed, followed by a multiple comparison test. According to the trimester of pregnancy, differences were assessed using the mean difference test. To evaluate the adequacy of linoleic fatty acid and alpha-linolenic acid intake, the adequate intake test was used. The association between alpha-linolenic acid intake adequacy and maternal characteristics was investigated using a binary logistic regression model. Results: Total lipids intake and the percentage contribution to dietary energy met recommended levels. One-third of the diets demonstrated a lower than daily recommended intake of alpha-linolenic acid. Overweight pregnant women were twice as likely to have inadequate alpha-linolenic acid intake. Pregnant women from a more disadvantaged socioeconomic situation had greater risks of inadequate intake. Conclusion: Over-intake of lipids is not problematic, but quality is an issue, with one third of the pregnant women and their fetuses exposed to adverse effects due to low intake of omega-3 fatty acids, indicating important nutritional vulnerability in this population.

Omega-3 Alpha Linolenic Acid Does Not Reflect the Entire Omega-3 Fatty Acid Family

2006 ◽  
Vol 102 (4) ◽  
pp. 1289-1290
Author(s):  
St??phanie Chevalier ◽  
Jordi P??rez ◽  
Yoram Shir
Keyword(s):  
Fatty Acid ◽  
Linolenic Acid ◽  
Omega 3 ◽  
Alpha Linolenic Acid ◽  
Omega 3 Fatty Acid

The alpha-linolenic Acid Content of Green Vegetables Commonly Available in Australia

2001 ◽  
Vol 71 (4) ◽  
pp. 223-228 ◽  
Author(s):  
Christine Pereira ◽  
Duo Li ◽  
Andrew J. Sinclair
Keyword(s):  
Fatty Acids ◽  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Linolenic Acid ◽  
Acid Composition ◽  
Acid Content ◽  
Omega 3 ◽  
Alpha Linolenic Acid ◽  
Brussels Sprouts ◽  
Total Fatty Acids

Green vegetable consumption has long been considered to have health benefits mainly due to the vitamins, minerals and phytonutrients (such as vitamin C, folate, antioxidants etc) contained in a vegetable-rich diet. Additionally, green vegetables are known to contain a relatively high proportion of omega-3 polyunsaturated fatty acids (PUFAs), primarily in the form of alpha-linolenic acid (18:3n-3). However, there are no data available on the fatty acid composition and concentration of green vegetables commonly consumed in Australia. The present study determined the fatty acid content of 11 green vegetables that are commonly available in Australia. The total fatty acid concentrations of the vegetables under study ranged from 44 mg/100 g wet weight in Chinese cabbage to 372 mg/100 g in watercress. There were three PUFAs in all vegetables analyzed; these were 16:3n-3, 18:2n-6, and 18:3n-3 fatty acids. Sample vegetables contained significant quantities of 16:3n-3 and 18:3n-3, ranging from 23 to 225 mg/100g. Watercress and mint contained the highest amounts of 16:3n-3 and 18:3n-3, and parsley had the highest amount of 18:2n-6 in both percentage composition and concentration. Mint had the highest concentration of 18:3n-3 with a value of 195 mg/100 g, while watercress contained the highest concentration of 16:3n-3 at 45 mg/100 g. All 11 green vegetables contained a high proportion of PUFAs, ranging from 59 to 72% of total fatty acids. The omega-3 PUFA composition ranged from 40 to 62% of total fatty acids. Monounsaturated fatty acid composition was less than 6% of total fatty acids. The proportion of saturated fatty acids ranged from 21% in watercress and mint to 32% of total fatty acids in Brussels sprouts. No eicosapentaenoic and docosahexaenoic acids were detected in any of the samples. Consumption of green vegetables could contribute to 18:3n-3 PUFA intake, especially for vegetarian populations.

Omega-3 enriched eggs: The influence of dietary α-linolenic fatty acid source on egg production and composition

2001 ◽  
Vol 81 (3) ◽  
pp. 355-362 ◽  
Author(s):  
Ricardo Ayerza ◽  
Wayne Coates
Keyword(s):  
Fatty Acid ◽  
Linolenic Acid ◽  
Egg Production ◽  
Control Diet ◽  
Omega 3 ◽  
Egg Weight ◽  
Omega 3 Fatty Acid ◽  
Chia Seed ◽  
Linolenic Fatty Acid ◽  
Acid Percentage

A study was conducted to assess the effect of replacing chia with flaxseed as a source of α-linolenic acid in laying hen feed. Five diets, identified as T0 through T4, containing 0-0, 7-3, 9-5, 11.5-2.5 and 14-0% whole chia seed and whole flaxseed, respectively, were fed to 240 White Shaver laying hens, at 60 wk of age. No difference (P > 0.05) in egg production, egg weight, yolk weight and albumen weight were found among treatments. Total ω-3 acid percentage was higher (P < 0.05) in the yolks from the hens fed the α-linolenic acid-enriched diets, than in those fed the control diet. Of the three treatments that had any combination of chia and flaxseed comprising 14% of the diet, T2 yielded a lower (P < 0.05) ω-3 content in the yolk, than did T3 and T4. A taste panel found no difference (P > 0.05) in flavor or off-flavor among treatments; however, panel preferences were lower for eggs produced by hens fed the highest level of flaxseed (T2). This study showed no advantages to replacing chia with flaxseed to produce ω-3 enriched eggs. Greater availability of flaxseed, however, might make it more attractive in some markets. Key words: Eggs, chia, flaxseed, omega-3 fatty acid

scholarly journals Purslane Weed (Portulaca oleracea): A Prospective Plant Source of Nutrition, Omega-3 Fatty Acid, and Antioxidant Attributes

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Md. Kamal Uddin ◽  
Abdul Shukor Juraimi ◽  
Md Sabir Hossain ◽  
Most. Altaf Un Nahar ◽  
Md. Eaqub Ali ◽  
...  
Keyword(s):  
Fatty Acid ◽  
Linolenic Acid ◽  
Dry Weight ◽  
Portulaca Oleracea ◽  
Alpha Tocopherol ◽  
Human Consumption ◽  
Omega 3 ◽  
Fresh Weight ◽  
Alpha Linolenic Acid ◽  
Omega 3 Fatty Acid

Purslane (Portulaca oleraceaL.) is an important plant naturally found as a weed in field crops and lawns. Purslane is widely distributed around the globe and is popular as a potherb in many areas of Europe, Asia, and the Mediterranean region. This plant possesses mucilaginous substances which are of medicinal importance. It is a rich source of potassium (494 mg/100 g) followed by magnesium (68 mg/100 g) and calcium (65 mg/100 g) and possesses the potential to be used as vegetable source of omega-3 fatty acid. It is very good source of alpha-linolenic acid (ALA) and gamma-linolenic acid (LNA, 18 : 3 w3) (4 mg/g fresh weight) of any green leafy vegetable. It contained the highest amount (22.2 mg and 130 mg per 100 g of fresh and dry weight, resp.) of alpha-tocopherol and ascorbic acid (26.6 mg and 506 mg per 100 g of fresh and dry weight, resp.). The oxalate content of purslane leaves was reported as 671–869 mg/100 g fresh weight. The antioxidant content and nutritional value of purslane are important for human consumption. It revealed tremendous nutritional potential and has indicated the potential use of this herb for the future.

scholarly journals The cardiovascular effects of flaxseed and its omega-3 fatty acid, alpha-linolenic acid

2010 ◽  
Vol 26 (9) ◽  
pp. 489-496 ◽  
Author(s):  
Delfin Rodriguez-Leyva ◽  
Chantal M.C. Bassett ◽  
Richelle McCullough ◽  
Grant N. Pierce
Keyword(s):  
Fatty Acid ◽  
Linolenic Acid ◽  
Cardiovascular Effects ◽  
Omega 3 ◽  
Alpha Linolenic Acid ◽  
Omega 3 Fatty Acid

scholarly journals Omega-3 fatty acids to prevent preterm birth: Australian pregnant women’s preterm birth awareness and intentions to increase omega-3 fatty acid intake

2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Jamie V de Seymour ◽  
Lucy A Simmonds ◽  
Jacqueline Gould ◽  
Maria Makrides ◽  
Philippa Middleton
Keyword(s):  
Fatty Acids ◽  
Fatty Acid ◽  
Preterm Birth ◽  
Pregnant Women ◽  
Cochrane Review ◽  
Fatty Acid Intake ◽  
Omega 3 Fatty Acids ◽  
Omega 3 ◽  
Omega 3 Fatty Acid ◽  
Acid Intake

Abstract Background Preterm birth is the leading cause of death in children under five. A recent Cochrane review found a 42% reduction in early preterm birth (< 34 weeks’ gestation) and 11% reduction in preterm birth (< 37 weeks’ gestation) with omega-3 fatty acid supplementation. To assist in the development of implementation strategies to increase pregnant women’s omega-3 fatty acid intake, we assessed the awareness of Australian pregnant women about preterm birth, their nutrition and supplementation behaviours during pregnancy, and intentions to increase omega-3 fatty acid intake. Methods A ten-minute survey was conducted online to assess the knowledge, attitudes, behaviours, and intentions of Australian pregnant women across three domains: (1) preterm birth; (2) nutrition and supplementation during pregnancy; and (3) omega-3 fatty acid consumption to prevent preterm birth. Participants were recruited from Survey Sampling International’s research panels. Results Of the 763 women who completed the survey, less than two-thirds had heard of preterm birth. Over 55% of respondents had changed their diet during pregnancy and a prenatal dietary supplement was consumed by 82% of the women surveyed. Respondents’ main source of information about preterm birth and nutrition during pregnancy was from a health professional. When asked about their intentions to increase their omega-3 fatty acid intake following a health professional’s recommendation, the vast majority of participants indicated they would increase their omega-3 fatty acid intake (90%). When a hypothetical scenario was presented of an omega-3 fatty acid supplement being offered from a health service at no cost, the number of respondents who selected they would increase their intake through supplementation increased from 54 to 79%. Conclusions The main information source for women about preterm birth and dietary supplementation recommendations during pregnancy is their health professional. Therefore, informing women about ways to prevent preterm birth, including the role of omega-3 fatty acids, should occur during antenatal visits. The results from our study are useful for clinicians caring for pregnant women and for the next stage of translation of the Cochrane review findings – the design of implementation strategies to increase the intake of omega-3 fatty acids during pregnancy where needed.

scholarly journals Omega-3 Alpha Linolenic Acid Does Not Reflect the Entire Omega-3 Fatty Acid Family

2006 ◽  
Vol 102 (4) ◽  
pp. 1289
Author(s):  
Axel R. Heller ◽  
Sebastian N. Stehr ◽  
Rainer J. Litz
Keyword(s):  
Fatty Acid ◽  
Linolenic Acid ◽  
Omega 3 ◽  
Alpha Linolenic Acid ◽  
Omega 3 Fatty Acid

scholarly journals Omega-3 Alpha-Linolenic Fatty Acid Affects the Level of Telomere Binding Protein TRF1 in Porcine Skeletal Muscle

Animals ◽  
2020 ◽  
Vol 10 (6) ◽  
pp. 1090
Author(s):  
Magdalena Ogłuszka ◽  
Marinus F. W. te Pas ◽  
Ewa Poławska ◽  
Agata Nawrocka ◽  
Kamila Stepanow ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Fatty Acids ◽  
Fatty Acid ◽  
Linolenic Acid ◽  
Linseed Oil ◽  
Control Group ◽  
Omega 3 ◽  
Telomere Biology ◽  
Linolenic Fatty Acid ◽  
The Impact

Omega-3 fatty acids are health-promoting nutrients that contribute to the amelioration of age-related diseases. Recent studies have reported the role of these fatty acids in the aging process, explicitly impacting telomere biology. The shelterin protein complex, located at the extremities of chromosomes, ensures telomere protection and length regulation. Here, we analyzed the impact of dietary omega-3 alpha-linolenic fatty acid from linseed oil on skeletal muscle telomere biology using an animal model of female pigs. Fifteen animals were supplemented with linseed oil for nine weeks and an equal number of individuals were fed with a control diet. Linseed-oil-supplemented animals showed an increased level of alpha-linolenic acid in skeletal muscles compared to control animals. There was no difference between groups in the telomere length measured in leukocytes and muscles. However, muscles of the linseed-oil-supplemented pigs showed lower levels of the shelterin TRF1 protein compared to the control group. Our results suggest that omega-3 linolenic acid counteracts the elevation of TRF1 levels, which increase with age and due to the presence of reactive oxygen species in muscle. The observed effect may be due to attenuation of oxidative stress.

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