# Study: salt intake increases incidence of T2D and LADA, yet? **URL:** \ **Category:** T2 Research\ **Tags:** lada, type-2\ **Created:** [September 19, 2017, 3:36am UTC](https://forum.fudiabetes.org/t/study-salt-intake-increases-incidence-of-t2d-and-lada-yet/2050 "2017-09-19T03:36:13Z")\ **Posts on this page:** 6\ **Page:** 2
**Author:** ![Aaron](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/aaron/32/1454_2.png) [@Aaron](https://forum.fudiabetes.org/u/Aaron)\ **Post date:** [September 19, 2017, 5:51pm UTC](https://forum.fudiabetes.org/t/study-salt-intake-increases-incidence-of-t2d-and-lada-yet/2050/22 "2017-09-19T17:51:17Z")
> [@cardamom](#): > > As a researcher, I always take correlational, retrospective studies with many… wait for it… grains of salt, 😆 ---
**Author:** ![Michel](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/michel/32/387_2.png) [@Michel](https://forum.fudiabetes.org/u/Michel)\ **Post date:** [September 19, 2017, 5:58pm UTC](https://forum.fudiabetes.org/t/study-salt-intake-increases-incidence-of-t2d-and-lada-yet/2050/23 "2017-09-19T17:58:11Z")
I split your post to have both topics in their own thread, hope it’s OK! > [@Increase in prevalence of Type 1 diabetes: why?](https://forum.fudiabetes.org/t/increase-in-prevalence-of-type-1-diabetes-why/2064): > > I have not done a study to prove a causal relationship, but I suspect that there would be a correlation between Type 1 diabetics living long enough to reproduce and pass on their genes and the increase of which you speak. Although I do not discount the environmental factors argument. ---
**Author:** ![TiaG](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/tiag/32/594_2.png) [@TiaG](https://forum.fudiabetes.org/u/TiaG)\ **Post date:** [September 19, 2017, 5:59pm UTC](https://forum.fudiabetes.org/t/study-salt-intake-increases-incidence-of-t2d-and-lada-yet/2050/24 "2017-09-19T17:59:04Z")
But in this case wasn’t the data collected first from two cohorts that were already preselected – the T1s and T2s and the healthy controls? Maybe I misread? ---
**Author:** ![cardamom](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/cardamom/32/2622_2.png) [@cardamom](https://forum.fudiabetes.org/u/cardamom)\ **Post date:** [September 19, 2017, 6:05pm UTC](https://forum.fudiabetes.org/t/study-salt-intake-increases-incidence-of-t2d-and-lada-yet/2050/25 "2017-09-19T18:05:48Z")
Right, this study was indeed retrospective. Was commenting on the point made above suggesting that any study asking about past behavior is retrospective—in some sense, sure, but not usually what is meant by that in terms of research design. As wanted to make that note about prospective designs, since I think it can be easy to assume that those are not correlational, but they still are as well. ---
**Author:** ![TiaG](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/tiag/32/594_2.png) [@TiaG](https://forum.fudiabetes.org/u/TiaG)\ **Post date:** [September 19, 2017, 6:24pm UTC](https://forum.fudiabetes.org/t/study-salt-intake-increases-incidence-of-t2d-and-lada-yet/2050/26 "2017-09-19T18:24:17Z")
yes that’s a good clarification. I feel like dietary recall studies are a particularly bad type of retrospective study though, because they’re essentially not doing the work to get the good quality data. I mean they’ll ask things like: “in the last six months, would you say you ate a) two servings of blueberries a week b) one serving a week c) less than one a week d) less tan one a month e) never?” Who remembers those things? And was it blueberry season? And how on Earth can we expect people to accurately recall their food intake when they’re already so prone to things like underestimating portion size and caloric intake… ---
**Author:** ![Boerenkool](https://yyz2.discourse-cdn.com/flex030/user_avatar/forum.fudiabetes.org/boerenkool/32/6307_2.png) [@Boerenkool](https://forum.fudiabetes.org/u/Boerenkool)\ **Post date:** [September 19, 2017, 7:41pm UTC](https://forum.fudiabetes.org/t/study-salt-intake-increases-incidence-of-t2d-and-lada-yet/2050/27 "2017-09-19T19:41:43Z")
> [@TiaG](#): > > Who remembers those things? And was it blueberry season? And how on Earth can we expect people to accurately recall their food intake when they’re already so prone to things like underestimating portion size and caloric intake… Very good point! With salt intake it’s even harder to make an accurate estimation. [Previous page](https://forum.fudiabetes.org/t/study-salt-intake-increases-incidence-of-t2d-and-lada-yet/2050.md?page=1)