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Clin Nutr. 2010 Dec 2. [Epub ahead of print]

Growth of infants fed formula rich in canola oil (low erucic acid rapeseed oil).

Rzehak P, Koletzko S, Koletzko B, Sausenthaler S, Reinhardt D, Grübl A, Bauer CP, Krämer U, Bollrath C, von Berg A, Berdel D, Wichmann HE, Heinrich J; for the GINI Study Group.

Helmholtz Zentrum München, German Research Center for Environmental Health, Institute of Epidemiology, Neuherberg, Germany; Ludwig-Maximilians University Munich, Institute of Medical Informatics, Biometry and Epidemiology, Chair of Epidemiology, Munich, Germany.

Abstract

BACKGROUND & AIMS: Canola oil is a variety of rapeseed oil low in erucic acid (<2%). For many years, canola oil has been widely used as an ingredient in infant formula in Europe, but not in North America due to safety concerns. A number of studies have used variable canola content of infant formulas to investigate the effects of linoleic acid: α-linolenic acid ratio on visual function of infants. However, little published data is available to compare the safety of canola versus non-canola containing infant formula. The aim of this study is to investigate whether infant formulas containing canola oil support normal growth in infants as assessed by weight and length gain.

METHODS: Re-analyses of data on infant weight and length gain from a prospective randomized double-blind trial in full-term infants in the German Infant Nutritional Intervention study (GINI). This analysis compared growth in infants receiving infant formulas with or without canola oil from week 4 to month 7. Absolute weight and length, weight and length gain in gram or cm per day and standardized weight and length measurements were analyzed by analyses of variance and a longitudinal random effects model. Standardization was conducted according to the new WHO 2006 age- and sex-specific child growth standards.

RESULTS: Absolute and standardized weight and length measures did not differ between the formula groups with or without canola oil. This was true for both, analyses within each of the three anthropometric measurement periods (4-6 weeks, 3-4 months, 6-7 months) and for the longitudinal analyses over the whole period from 4 weeks to 7 months of life. Power analyses confirmed that sample size was sufficient to detect a difference of 3 g per day between 14 and 120 days between the two formula groups.

CONCLUSIONS: Infant formula containing canola oil supports normal infant growth as assessed by weight and length gain.

 

Am J Clin Nutr. 2006 Jun;83(6 Suppl):1526S-1535S.

n-3 fatty acid dietary recommendations and food sources to achieve essentiality and cardiovascular benefits.

Gebauer SK, Psota TL, Harris WS, Kris-Etherton PM.

Department of Nutritional Sciences, Pennsylvania State University, University Park, PA 16802, USA.

Abstract

Dietary recommendations have been made for n-3 fatty acids, including alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) to achieve nutrient adequacy and to prevent and treat cardiovascular disease. These recommendations are based on a large body of evidence from epidemiologic and controlled clinical studies. The n-3 fatty acid recommendation to achieve nutritional adequacy, defined as the amount necessary to prevent deficiency symptoms, is 0.6-1.2% of energy for ALA; up to 10% of this can be provided by EPA or DHA. To achieve recommended ALA intakes, food sources including flaxseed and flaxseed oil, walnuts and walnut oil, and canola oil are recommended. The evidence base supports a dietary recommendation of approximately 500 mg/d of EPA and DHA for cardiovascular disease risk reduction. For treatment of existing cardiovascular disease, 1 g/d is recommended. These recommendations have been embraced by many health agencies worldwide. A dietary strategy for achieving the 500-mg/d recommendation is to consume 2 fish meals per week (preferably fatty fish). Foods enriched with EPA and DHA or fish oil supplements are a suitable alternate to achieve recommended intakes and may be necessary to achieve intakes of 1 g/d.

 

Arterioscler Thromb. 1993 Oct;13(10):1533-42.

Effects of canola, corn, and olive oils on fasting and postprandial plasma lipoproteins in humans as part of a National Cholesterol Education Program Step 2 diet.

Lichtenstein AH, Ausman LM, Carrasco W, Jenner JL, Gualtieri LJ, Goldin BR, Ordovas JM, Schaefer EJ.

Lipid Metabolism Laboratory, Tufts University, Boston, Mass. 02111.

Abstract

The most stringent dietary recommendations of the National Cholesterol Education Program (NCEP) are to limit fat intake to < 30% of calories, saturated fat intake to < 7% of calories, and cholesterol intake to < 200 mg/d (Step 2 diet). There is debate as to whether the remaining fat in the diet should be relatively high in monounsaturated or polyunsaturated fatty acids. We examined this issue by testing the effects of diets meeting the aforementioned guidelines that were enriched in three different vegetable oils on plasma lipids in the fasting and postprandial states in a clinically relevant population. Female and male subjects (n = 15, mean age, 61 years) with low-density lipoprotein cholesterol (LDL-C) concentrations > 130 mg/dL were studied under strictly controlled conditions. Subjects were first placed on a diet similar to that currently consumed in the United States to stabilize plasma lipids with respect to identical fat and cholesterol intakes. The subjects then received diets meeting NCEP Step 2 criteria in which two thirds of the fat calories were given either as canola, corn, or olive oil in a randomized, double-blinded fashion for 32 days each. Plasma cholesterol concentrations declined after consumption of diets enriched in all the test oils; however, the declines were significantly greater for the canola (12%) and corn (13%) than for the olive (7%) oil-enriched diet. Mean plasma LDL-C concentrations declined after consumption of diets enriched in all the test oils (16%, 17%, and 13% for canola, corn, and olive oil, respectively), and the magnitude of the declines was statistically indistinguishable among the test oils. Mean plasma high-density lipoprotein cholesterol (HDL-C) concentrations declined after consumption of the baseline diet, and these declines were significant for the canola (7%) and corn (9%) oil-enriched diets. Changes in LDL apolipoprotein (apo)B concentrations paralleled those of LDL-C. Switching from the baseline to the vegetable oil--enriched diets had no significant effect on plasma triglyceride, apoA-I, and lipoprotein(a) concentrations or the total cholesterol to HDL-C ratio. LDL apoB to apoA-I ratios were significantly reduced when the subjects consumed the vegetable oil--enriched diets. Differences similar to those observed in the fasting state were observed in the postprandial state.(ABSTRACT TRUNCATED AT 400 WORDS)