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Background: The purpose of this study was to evaluate the growth, tolerance and compliance effects of an extensively hydrolyzed formula with added 2′-FL in an intended use population of infants. Methods: A non-randomized, single-group, multicenter study was conducted. Infants (0–60 days of age) with suspected food protein allergy, persistent feeding intolerance, or presenting conditions where an extensively hydrolyzed formula (eHF) was deemed appropriate were enrolled in a 2-month feeding trial. The primary outcome was maintenance of weight for age z-score during the study. Weight, length, head circumference, formula intake, tolerance measures, clinical symptoms and questionnaires were collected. Forty-eight infants were enrolled and 36 completed the study. Results: Weight for age z-scores of infants showed a statistically significant improvement from study day 1 to study day 60 (0.32 ± 0.11, p = 0.0078). Conclusions: Overall, the results of the study demonstrate that the study formula was well tolerated, safe and supported growth in the intended population.

With the association between increased carotenoid intake and lower risk of chronic diseases, the absorption of lutein from the diet becomes an important factor in its delivery and physiological action. The primary objective of this study was to gain an understanding of how a new formulation technology (mixture of mono- and diglycerides (MDG)), affected lutein absorption. Subjects (n 24) were randomised in a cross-over, double-blind study to receive a single dose of 6 mg lutein (FloraGLO 20 %) provided as capsules containing either high-oleic safflower (SAF) oil or a MDG oil. Subjects receiving a single dose of lutein in MDG showed a significantly greater change from baseline (0 h) to 4, 6, 8, 12, 24, 48 and 336 h (P<0·05) and baseline adjusted AUC for plasma lutein at 48 and 336 h (P<0·001) as compared with subjects given lutein in SAF. Analysis of the 48 h absorption kinetics of lutein showed that the time to peak level of lutein (12 h) was the same for SAF and MDG groups, but the change in plasma lutein at 12 and 48 h were 129 and 320 % higher, respectively, for MDG compared with SAF. This difference continued as the adjusted AUC 0–48 and 0–336 h for the MDG group was 232 and 900 % higher, respectively, v. SAF. The study data show that by changing the lipid that is combined with a lutein supplement results in significant increases in lutein absorption in healthy adults.

Athletes often have inadequate nutrition knowledge and poor nutritional habits, which can have a negative impact on athletic performance. This study assessed the nutrition knowledge of competitive adolescent and young adult male hockey players, and examined the impact of a nutrition intervention program, Sport Nutrition for the Athletes of Canada (SNAC). Before the intervention, nutrition knowledge was tested in 175 adolescent and young adult male hockey players. The intervention was provided as part of a hockey camp curriculum and was based on the SNAC workbook, which emphasizes achieving a balanced diet with adequate energy and fluid intake. After the intervention, nutrition knowledge was assessed in a subgroup of 33 hockey players. The pre-intervention nutrition knowledge score was 45% (n = 175), which suggests this population had little sport nutrition knowledge. Nutrition knowledge scores two weeks after the intervention showed no meaningful improvement in the subgroup. The results of this study suggest that the SNAC nutrition intervention program offered under the conditions of this study, did not effectively improve nutrition knowledge in adolescent and young adult male hockey players.

Background: Trace elements have been shown to contaminate total parenteral nutrition (TPN) solutions. Methods: This study used the multi-elemental technology of inductively coupled plasma—mass spectrometry to demonstrate the extent to which trace elements were present in amounts above (ie, as contaminants) or below expected levels in eight TPN component solutions. Results: Of the 66 trace elements scanned, there were 12 trace element contaminants in amounts >1 μg/L (zinc, copper, manganese, chromium, selenium, boron, aluminum, titanium, barium, vanadium, arsenic, and strontium) in the eight component solutions studied. Trace element contaminants were present in all solutions, and different trace elements contaminated the solutions at various concentrations. Component solutions of amino acid, potassium chloride, calcium gluconate, and sodium chloride contained the greatest numbers of trace element contaminants, whereas the lowest numbers were present in sterile water and magnesium sulfate. Interlot and intermanufacturer variations were apparent. Measured concentrations of trace elements in the multi-trace element additive solution also were higher than the labeled values. A comparison of the amounts of contaminated trace elements delivered by a typical TPN mixture relative to the amounts typically absorbed by the gastrointestinal tract indicates that the inadvertent delivery of trace elements from contaminated TPN solutions may be substantial. Conclusions: All eight components tested were contaminated with trace elements not intended to be present in the product, and similarly, the multi-trace element component contained trace elements either above or below that which the label claimed. (Journal of Parenteral and Enteral Nutrition 23:222-227, 1999)

Background: Patients who receive home total parenteral nutrition (TPN) frequently are supplied with solutions up to 30 days in advance of anticipated use. The purpose of this study was to determine the stability of trace elements relative to time and temperature conditions, in a typical adult TPN solution stored in a usual home environment by examining variations in delivery of intended trace elements and inadvertent trace element contamination. Methods: Trace element concentrations were determined using inductively coupled plasma-mass spectrometry technology. The effect of the delivery apparatus, storage duration (36 hours or 30 days) after compounding, and storage temperature (4°C or 20°C) were examined. Results: The delivery apparatus contaminated the delivered TPN solution with cobalt but did not alter trace elements formulated into the TPN solution. Storage duration and temperature significantly decreased three (Zn, Cu, and Mn) of the six trace elements formulated into the TPN solution. Higher temperatures and longer duration of storage accelerated this decrease. Boron, Al, V, Ti, Ba, Sr, and CO were the trace elements that appeared as contaminants during storage. Boron, Al, V, and Ti contamination decreased with higher temperatures and longer duration of storage. Conclusions: Longer storage duration and higher storage temperature progressively reduced the deliverable concentrations of trace elements specifically formulated into the TPN solution and also of those trace elements that were not formulated into the TPN solution but that appeared as contaminants. (Journal of Parenteral and Enteral Nutrition 23:228-232, 1999)

BACKGROUND: Trace elements have been shown to contaminate total parenteral nutrition (TPN) solutions. METHODS: This study used the multi-elemental technology of inductively coupled plasma-mass spectrometry to demonstrate the extent to which trace elements were present in amounts above (ie, as contaminants) or below expected levels in eight TPN component solutions. RESULTS: Of the 66 trace elements scanned, there were 12 trace element contaminants in amounts >1 microg/L (zinc, copper, manganese, chromium, selenium, boron, aluminum, titanium, barium, vanadium, arsenic, and strontium) in the eight component solutions studied. Trace element contaminants were present in all solutions, and different trace elements contaminated the solutions at various concentrations. Component solutions of amino acid, potassium chloride, calcium gluconate, and sodium chloride contained the greatest numbers of trace element contaminants, whereas the lowest numbers were present in sterile water and magnesium sulfate. Interlot and intermanufacturer variations were apparent. Measured concentrations of trace elements in the multi-trace element additive solution also were higher than the labeled values. A comparison of the amounts of contaminated trace elements delivered by a typical TPN mixture relative to the amounts typically absorbed by the gastrointestinal tract indicates that the inadvertent delivery of trace elements from contaminated TPN solutions may be substantial. CONCLUSIONS: All eight components tested were contaminated with trace elements not intended to be present in the product, and similarly, the multi-trace element component contained trace elements either above or below that which the label claimed.

BACKGROUND: Patients who receive home total parenteral nutrition (TPN) frequently are supplied with solutions up to 30 days in advance of anticipated use. The purpose of this study was to determine the stability of trace elements relative to time and temperature conditions, in a typical adult TPN solution stored in a usual home environment by examining variations in delivery of intended trace elements and inadvertent trace element contamination. METHODS: Trace element concentrations were determined using inductively coupled plasma-mass spectrometry technology. The effect of the delivery apparatus, storage duration (36 hours or 30 days) after compounding, and storage temperature (4 degrees C or 20 degrees C) were examined. RESULTS: The delivery apparatus contaminated the delivered TPN solution with cobalt but did not alter trace elements formulated into the TPN solution. Storage duration and temperature significantly decreased three (Zn, Cu, and Mn) of the six trace elements formulated into the TPN solution. Higher temperatures and longer duration of storage accelerated this decrease. Boron, Al, V, Ti, Ba, Sr, and CO were the trace elements that appeared as contaminants during storage. Boron, Al, V, and Ti contamination decreased with higher temperatures and longer duration of storage. CONCLUSIONS: Longer storage duration and higher storage temperature progressively reduced the deliverable concentrations of trace elements specifically formulated into the TPN solution and also of those trace elements that were not formulated into the TPN solution but that appeared as contaminants.