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The total choline intake mean estimate was 336 mg/day in pregnant adolescents and 356 mg/day in pregnant women. [6] A study based on the NHANES 2009–2012 survey estimated the choline intake to be too low in some US subpopulations. Intake was 315.2–318.8 mg/d in 2+ year olds between this time period.
Tolerable upper intake levels (UL), to caution against excessive intake of nutrients (like vitamin A and selenium) that can be harmful in large amounts. This is the highest level of sustained daily nutrient consumption that is considered to be safe for, and cause no side effects in, 97.5% of healthy individuals in each life stage and sex group ...
High doses of caffeine intake during pregnancy may increase the risk of miscarriage [48] and some major negative pregnancy outcomes, such as stillbirth or low birth weight. [ 49 ] [ 50 ] A 2020 review called into question the safe levels proposed by the European Food Safety Authority, the American Congress of Obstetricians and Gynecologists ...
The sweet spots for choline intake for each area were: visual attention (338 mg/day); fluid intelligence (333 mg/day) and complex processing speed (333 mg/day).
The study results suggest that optimal heart health benefits from choline intake may occur at specific levels, with both too little and too much being less beneficial. Choline intake of around 244 ...
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The recommended adequate intake of sodium is 1,500 milligrams (3.9 g salt) per day, and people over 50 need even less." [13] The Daily Value for potassium, 4,700 mg per day, was based on a study of men who were given 14.6 g of sodium chloride per day and treated with potassium supplements until the frequency of salt sensitivity was reduced to 20%.
The recommended daily intake of vitamin D for adults is 600 IU (15 micrograms), and for adults over 70 years old, 800 IU (20 micrograms). [46] Vitamin D comes in two forms. Cholecalciferol (vitamin D 3) is synthesized in the skin after exposure to the sun or consumed from food, usually from animal sources. [46]