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Dietary carbohydrate intake and mortality: a prospective cohort study and meta-analysis - The Lancet Public Health
We studied 15 428 adults aged 45–64 years, in four US communities, who completed a dietary questionnaire at enrolment in the Atherosclerosis Risk in Communities (ARIC) study (between 1987 and 1989), and who did not report extreme caloric intake (<600 kcal or >4200 kcal per day for men and <500 kcal or >3600 kcal per day for women). The primary outcome was all-cause mortality. We investigated the association between the percentage of energy from carbohydrate intake and all-cause mortality, accounting for possible non-linear relationships in this cohort. We further examined this association, combining ARIC data with data for carbohydrate intake reported from seven multinational prospective studies in a meta-analysis. Finally, we assessed whether the substitution of animal or plant sources of fat and protein for carbohydrate affected mortality.

Findings

....In the ARIC cohort, after multivariable adjustment, there was a U-shaped association between the percentage of energy consumed from carbohydrate (mean 48·9%, SD 9·4) and mortality: a percentage of 50–55% energy from carbohydrate was associated with the lowest risk of mortality. In the meta-analysis of all cohorts (432 179 participants), both low carbohydrate consumption (<40%) and high carbohydrate consumption (>70%) conferred greater mortality risk than did moderate intake, which was consistent with a U-shaped association (pooled hazard ratio 1·20, 95% CI 1·09–1·32 for low carbohydrate consumption; 1·23, 1·11–1·36 for high carbohydrate consumption). However, results varied by the source of macronutrients: mortality increased when carbohydrates were exchanged for animal-derived fat or protein (1·18, 1·08–1·29) and mortality decreased when the substitutions were plant-based (0·82, 0·78–0·87).

Interpretation

Both high and low percentages of carbohydrate diets were associated with increased mortality, with minimal risk observed at 50–55% carbohydrate intake. Low carbohydrate dietary patterns favouring animal-derived protein and fat sources, from sources such as lamb, beef, pork, and chicken, were associated with higher mortality, whereas those that favoured plant-derived protein and fat intake, from sources such as vegetables, nuts, peanut butter, and whole-grain breads, were associated with lower mortality, suggesting that the source of food notably modifies the association between carbohydrate intake and mortality.

Funding: National Institutes of Health.
whole  grain  carb  carbohydrates  low  fat  loss  guidelines  nutrition  food  foods  protein  macronutrients  proportion  ratio  ketogenic  diet  ketosis  risk  benefit  peer-reviewed  research  human  in  vivo  correlation  mortality  morbidity  all-cause  meta-analysis  animal  meat  plant-based  prospective  large  cohort 
10 days ago by Michael.Massing
What Foods Have No Carbs? | POPSUGAR Fitness
Kind of a clickbaity headline, but some good info with sources about the risks of extreme/prolonged ketogenic eating and the benefits of the right carbs for health and longevity.
whole  grain  carb  carbohydrates  low  fat  loss  guidelines  nutrition  food  foods  protein  macronutrients  proportion  ratio  ketogenic  diet  ketosis  risk  benefit  peer-reviewed  research  human  in  vivo 
10 days ago by Michael.Massing
Can I Eat Oatmeal on a Low-Carb Diet? | POPSUGAR Fitness
the average person's caloric intake should be made up of 45 to 65 percent carbs, according to the Institute of Medicine (IOM). Lori Zanini, RD, CDE, said in a previous interview that staying within the lower end of that percentage is ideal if you're looking to lose weight. She advised, though, that you shouldn't dip below 130 grams of carbs per day, which is the Recommended Dietary Allowance (RDA) of carbs declared by the IOM.

Leslie Langevin, MS, RD, CD, of Whole Health Nutrition, recommended that your diet consist of 25 percent carbs when your goal is weight loss. To figure this out, she provided the following equation: multiply your caloric goal by 0.25, then divide that by four (since one carb contains four calories). For example, if you're trying to eat 1,500 calories a day, the equation would looks like this: 1,500 x 0.25 = 375; 375/4 = 93.75 grams of carbs.

If you're trying to gain muscle, Jim White, RDN, ACSM, owner of Jim White Fitness and Nutrition Studios, suggested a high-carb diet with a macro breakdown of 55 percent carbs, 25 percent protein, and 20 percent fat.
oats  oatmeal  whole  grain  carb  carbohydrates  low  fat  loss  guidelines  nutrition  food  RDA  IoM  Institute  of  Medicine  protein  macronutrients  proportion  ratio 
10 days ago by Michael.Massing
Creating an aspect ratio CSS utility - Andy Bell
A component css solution to maintain aspect-ratio. Uses the vertical padding trick.
I didn't realise that object-fit can be used on img, not only on background
webdesign  web  design  img  object-fit  css  code  coding  aspect  ratio  proportion 
17 days ago by piperh
Aspect Ratio Boxes | CSS-Tricks
I had a little situation the other day where I needed to make one of those aspect-ratio friendly boxes. This isn't particularly new stuff. I think the
css  ratio  aspectratio 
26 days ago by bitstarr
Creating an aspect ratio CSS utility
"Until we get a native aspect ratio unit in the browser: achieving a controlled height based on a container’s width might seem difficult in a responsive design at first glance. It is actually pretty darn trivial, thanks to good ol’ padding and a touch of positioning magic (read: hacking)."
css  webdesign  webdevelopment  ratio 
4 weeks ago by garrettc

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