Topic summary

Dizziness on standing: the ordinary explanation first — one year on

Nutrition & Training › Hydration & electrolytes fatigue heart rate blood pressure

This is a generated summary. It shows the 5 most-liked posts from a topic of 17, in their original order, with the accepted answer included where one exists. It is a reading aid and it will miss nuance — the full topic is the record.

o.vogelTL228 Apr 2026#3

Where there is a genuine question, a measurement answers it and a supplement does not. Blood tests for the common electrolytes are routine and cheap.

26 likes 3mo

m.duarteTL27 May 2026#4

a.zamora, post #2: Taking the opening post at face value and following it one step further. The very ordinary causes of week-two malaise: inadequate hydration, low sodium intake, too-rapid calorie deficit, and inadequate sleep are more common causes of fatigue and malaise than compound toxicity. If the premise is wrong, everything after it is decoration. Go to post

What I would tell a new member reading about Dizziness on standing for the first time: the confident posts are not the reliable ones, and the reliable ones are longer.

12 likes in reply to #2 3mo

a.batistaTL228 May 2026#7

Reading back through, this was answered upthread and I missed it. My fault.

19 likes 2mo

c.marchettiTL222 Jun 2026#11

Building on post #8 rather than restating it.

Constipation and hydration: dehydration makes constipation worse. Increasing fluid intake is the first intervention for constipation alongside other measures.

29 likes 1mo

s.salgadoTL215 Jul 2026#15

k.perrin, post #6: Building on post #3 rather than restating it. The most useful posts here describe what was measured, what was changed, and what happened, in that order. Adding it in case it saves somebody the afternoon it cost me. Go to post

Post #12 is the version of this I will quote in future. One addition.

Very low total intake produces multiple simultaneous deficiencies rather than one, which is why single-nutrient reasoning goes wrong here.

22 likes in reply to #6 12d

Read the full topic (17 posts)

This topic was referenced in

The headache that turns out to be dehydration — the long versionNutrition & Training › Hydration & electrolytes · 73 replies

Suggested topics

Topic	Participants	Replies	Views	Activity
Follow-up: How much fluid is actually needed, and how you would know Nutrition & Training › Hydration & electrolytes blood pressure heart rate fatigue How much fluid is actually needed, and how you would know — that is the question, and I have not found it answered plainly anywhere I have looked. Reporting what I changed and what happened, with the caveat…	+17	21	12k	13mo
Electrolyte supplements: which ones do anything — a second dataset Nutrition & Training › Hydration & electrolytes fatigue heart rate blood pressure Electrolyte supplements: which ones do anything — a second dataset Writing it up because I had to work it out twice and would rather nobody else did. Posting a small dataset on Electrolyte supplements. It is…		2	59k	15mo
About the Hydration & electrolytes category Nutrition & Training › Hydration & electrolytes fatigue blood pressure heart rate Pinned Wiki Fluid intake, sodium, potassium and magnesium, and the very ordinary causes of week-two malaise. This post is a community wiki: any member at trust level 3 or above can edit it, and every edit is recorded…		4	3.6k	18h
Second pass at: Sodium, potassium and magnesium when intake drops Nutrition & Training › Hydration & electrolytes heart rate blood pressure fatigue Second pass at: Sodium, potassium and magnesium when intake drops Writing it up because I had to work it out twice and would rather nobody else did. A hydration and intake question, with the figures, since…	+132	142	12k	22mo
Follow-up: Sodium, potassium and magnesium when intake drops Nutrition & Training › Hydration & electrolytes blood pressure fatigue heart rate On the subject in the title: Sodium, potassium and magnesium when intake drops Working notes rather than a conclusion. A hydration and intake question, with the figures, since this one is unanswerable without…	+8	12	335	7mo

Related topics — sharing the tags fatigue, heart rate, blood pressure

Topic	Participants	Replies	Views	Activity
Follow-up: Tracking intake honestly when appetite is absent Nutrition & Training › Protein & intake constipation micronutrients lean mass loss fatigue Solved Tracking intake honestly when appetite is absent Writing it up because I had to work it out twice and would rather nobody else did. A follow-up question about Tracking intake that I did not know to ask the…	+94	106	1.8k	13mo
Two sessions a week versus four: what the evidence supports Nutrition & Training › Resistance training fatigue DXA lean mass loss Wiki On the subject in the title: Two sessions a week versus four: what the evidence supports Working notes rather than a conclusion. Reporting rather than asking, and the method is stated so the numbers mean…	+27	31	22k	20mo
Obstructive sleep apnoea and a hard endpoint in this class Clinical › Comorbidities chronic kidney disease PCOS obstructive sleep apnoea blood pressure On the subject in the title: Obstructive sleep apnoea and a hard endpoint in this class Working notes rather than a conclusion. I was wrong about obstructive sleep apnoea in a thread last spring and I would…	+120	129	1.8k	13mo
Early satiety becoming a problem rather than a benefit Practice › Side effects vomiting fatigue hair shedding constipation Closed Early satiety becoming a problem rather than a benefit — setting out what I have, and where I think it stops being reliable. A methods question rather than a substantive one, about early satiety. Everyone…	+20	24	2.5k	6mo
Follow-up: Constipation management, with a dietitian's contribution Practice › Side effects nausea fatigue hair shedding Closed Constipation management, with a dietitian's contribution — setting out what I have, and where I think it stops being reliable. A follow-up question about Constipation management that I did not know to ask the…	+31	35	28k	8mo