Smackman...
Unfortunately, by law, potassium capsules are limited to 99 mg/capsule... (unless it's a professional product distributed through healthcare professionals, then they can exceed the 99 mg.)... that's why we were happy to learn about the NOW brand bulk powder which allows for easier dosing of higher amounts without swallowing so many capsules at one time.
You may like to review this old post on Potassium... that has a lot of reader input and observations that should help you feel more comfortable about supplementing with potassium. It will help you gain some confidence. [
www.afibbers.org]
Many people don't eat enough potassium-containing foods on a daily basis and as I commented previously, unless one cooks meals from scratch with basic, natural ingredients, it's difficult to eliminate or control the amounts of sodium.
There was a post on potassium benefits other than for helping with Afib that I'm re-posting here for your benefit and that of new readers. The archives are full of great posts on potassium importance and benefits as well. It's an essential nutrient that is often forgotten.
The antique book published in 1992,
Everything You Always Wanted to Know About Potassium….but were too tired to ask, by Betty Kamen, PhD is written in her typical folksy way of explaining biochemistry to lay people. She comments the following when talking about the very important duties of both sodium and potassium in the body:
...." With such important duties, nature must have provided a way for you to secure and utilize the right amount of these element. And indeed it has! Potassium, the surprising chairperson of the board, is found in abundance in uncooked fruits and vegetables—especially in the rinds, husks and stalks of edible plants. Potassium intake has always been very substantial. Sodium, on the other hand, is relative scarce in natural foods. The original hunter-gatherer ingested a diet high in potassium, but low in sodium. Perhaps that’s the reason your kidneys easily remove excess potassium from your blood. Your metabolism is more frugal with sodium, simply because under natural conditions, there is less of it to be found and eaten. So your body handles sodium with a more sparing kind of metabolism. Your kidneys actually hoard sodium.
Average kidneys slow the loss of sodium to a mere 10 milligrams a day if the mineral is in short supply. Daily minimum potassium loss can be as high as 240 milligrams or 24 times the amount of sodium that is easily extracted. " unquote
Hope this helps you feel better about adding potassium.
Best to you,
Jackie
Here's the post:
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www.afibbers.org]
Author: Jackie (---.lightspeed.bcvloh.sbcglobal.net)
Date: 09-24-10
We are really doing ourselves a healthy favor by optimizing our potassium stores to help prevent Afib because additionally, we also get many other benefits not often recognized or discussed. Following is a list of 25 additional benefits from potassium (K+). (The benefits are not limited to just these selected 25.)
There have been many important posts on potassium. Now in the Resource Section, we can access these great contributions quickly.
If you haven’t read these, be sure to do so.
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As afibbers, we know that when we have optimal potassium and low sodium intakes, we are most likely to sustain Normal Sinus Rhythm and control ectopy. When the sodium-potassium pump has enough magnesium to function properly, then calcium is moved quickly and easily out of muscle cells and they relax. This also helps eliminate the risk of developing arterial stiffness and ultimately, hypertension.
Jackie Burgess, RDH (ret.)
Fatigue & Exercise
1. Potassium deficiency is often related to fatigue. Athletes have recognized that potassium is critical in fatigue prevention. Muscle tissue is the main reservoir of potassium. (Your heart is a muscle). Muscle potassium loss has been cited as a major factor associated with or contributing to muscle fatigue.
Lindinger, MI American Journal Physiology 1992
2.The site of exercise-induced muscle fatigue appears to be the muscle-cell membrane.
Sjogaard G “Role of exercise-induced potassium fluxes underlying muscle fatigue: a brief Rev.” Can Jnl of Phys and Pharm, 1991 Sept. 54(3):489-98.
3. Intense muscle contractions result in large changes in electrolyte concentrations, including potassium.
Lindinger MI, etal “Blood ion regulation during repeated maximal exercise and recovery in Hums.” Amer Jnl of Phys, 1992 Jan, 262:R126
4. Researchers conclude that potassium recovery is a slow process after prolonged low intensity contraction—due to inefficient Na/K+ pump activation.
Bystrom S; Sjogaard G. “Potassium homeostasis during and following exhaustie submaximal static handgrip contractions.” Acta Phys Scan, 1991 May, 142(1):59-66
Fatigue & adrenal glands
5. Potassium intake directs the manufacture of certain adrenal enzymes.
Lauber M; Boni-Schnetzler, MullerJ “Potassium raises cytochrome P450 1 beta mRNA level in zona gomerulosa of rat adrenals.” Mol and Cellular Endoc, 1990 Sept 10, 72(3):159-66.
6. Adrenals manufacture renin, important in calcium metabolism. Renin secretion is regulated and stimulated by potassium intake.
Inagami T etal. “Active and inactive renin in the adrenal.” Amer Jnl of Hypert, 1989 Apr, 2(4):311-9.
7. Adrenal regulation is helped by dietary sodium depletion or potassium intake.
Tremblay A, etal. Regulation of rat adrenal messenger RNA and protein levels for cytochrome P450 and adrenodoxin by dietary sodium depletion or potassium intake.” Jnl of BioChem, 1991 Feb 5, 266(4):2245-51.
Fatigue & environmental pollution
8. Sometimes the first warning of metal toxicity is the loss of electrolytes. Toxic metals such as cadmium, mercury, methyl-mercury inhibit sodium-potassium activity. Nickel and lead cause more pronounced losses of K+ than sodium. Studies show the Na-K+ pump is affected by lead.
Rajanna B etal. Effects of cadmium and mercury on NA(+)-K+, ATPase and uptake of 3H dopamine in rat brain synaptosomes.
Archives Inters de Phys et de Biocheimie 1990, Oct 98:291-6
Kone, BC, Brenner RM, Sulfhydryl-reactive heavy metals increase cell Memb K+ and Ca2+ transport in renal proximal tubule.
Jnl of Memb Biol, 1990 Jan, 113(1):1-12Bertoni JM, Low level load inhibits the Hum brain cation pump. Life Scis, 1991, 48(22):2149
Potassium & aging
Silent aging changes occur much younger than one might expect.
9. In the adaptation of your kidneys to sodium, the descent begins in your thirties. Mimran A {Renal Function and aging} Neph, 1990, 11:275-80
10. The older you are, the less efficient the activity in the sodium-potassium enzyme activity. Ruch S et al. “Aging: stimulation rate on cardiac intracellular Na+ activity and developed tension.” Mechanisms of Aging and Devel”, 1991, Nov 1, 60(3)303-13
11. Permeability of Cells to potassium declines with age
Adragna NC “Cation transport in vascular endothelial cells and aging” Jnl of Memb Biol 1991 Dec 124(3);285-91
Heseltine, D, etal Erythrocyte sodium, potassium and sodium fluxes with cell and subject ageing.” Clinica Chimica Aca, 1991, Jan 31,, 196(1):41-
12. A study at the Univ of Glasgow determined a decrease in muscular strength usually accepted as a symptom of “old age” may simply be a lack of potassium in the diet.
Cowar, NR; Judge TG, Jnl of the Amer Med Assoc, Oct 6, 1969
13. Analysis of membrane changes in cells of Alzheimer patients suggests the normal aging process of these cells is disturbed. Inadequate function of the sodium-potassium pump could be a major factor.
Bosman GJ, Bartholomew, KG, deGrip WJ, “Alzheimer’s disease and cellular aging: Memb-related events as clues to primary mechanisms. Ger, 1991, 37(1-3):95-112
14.More than 75% of seniors suffering from Xerostomia (dry mouth) were down to have significant deficiencies of potassium, among other nutrients.
Rhodus NL; Brown J. “The Assoc of xerostomia and inadequate intake in older adults.
Potassium & other conditions
The electromotive force behind nerve signals comes from the sodium-potassium pump on the nerve-cell membrane. Potassium deficiency can have a devastating effect.
Neurological Disorders
15. Decreased intracellular potassium has been noted in depressed patients. Those committing suicide were found to have decreased cerebral potassium.
Webb WL, Gehi M. “Electrolyte and fluid imbalance: Neurophychiatric manifestations” Psychodymamics, 1981, 22(3):199-203
16. Clinical signs of neuropathy in zinc deficiency are associated with sodium-potassium activity of nerves.
Mancini Met al. “Metabolic disturbances and antihypertensive Ther. Jur of Hypert. Supp 1991 Dec 9(3)S47
17. Bronchitis responds to potassium nitrate…. But now there are better forms to use.
Schwartz J, “Dietary factors and their relation to respiratory symptoms. The 2nd National Health and Nutr Examination Survey. Amer Jnl of Epidemiology, 1990 Jul 132:67-76
18. Immunity & toxicity protection
Because the sodium-potassium pump indirectly powers many membrane reactions, there is an important link between potassium and immunity. Fragile cell membranes due to insufficient electrical potential are weak and vulnerable and will have a hard time keeping toxic substances and dangerous viruses out.
Similarly, low level lead exposure on the human central nervous system can impair brain function. Studies show the Na-K pump is affected by lead.
Bertoni, JM “Low level lead inhibits the Hum Brain cation pump” Life Scis, 1991, 48(22):2149
19. Hypoglycemia
Potassium is depleted by low blood sugar because of over-activity of insulin which is the sugar-regulating hormone that drives sugar into the cells but uses up potassium in the process. A latest potassium deficiency can become symptomatic under the influence of insulin-stimulating foods such as those with a high glycemic index. [this is one reason we comment that for some afibbers, eating bananas counterproductive for potassium repletion. There are better food choices plus supplements.]
(Richard A, Kunin, MD case study- p. 153)
20. Migraines
One consequence of hypoglycemia is that potassium is depleted which permits increased cellular sodium and calcium which then can cause spasm in muscles of the blood vessels that contract during migraine. With or without headaches, potassium supplementation is an important of dietary treatment of hypoglycemia.
21. Diabetes
Potassium is closely related to diabetes disorders – i.e., metabolism of sucrose by cell membranes, production of insulin by pancreas, has been shown to lower blood sugar of diabetic patients. Cells of non-insulin dependent diabetics were found to have 15-20% reductions in sodium-potassium pump activity.
Rajeswari P etal Glucose induces lipid peroxidation and inactivation of Memb-associated ion-transport enzymes in Hum erythrocytes in vivo and in vitro. Jnl of Cellular Phys 1991 Oct, 139(1):100-9
22. Weight
As weight increases, the sodium content of certain cells also increases.
Adeeb N. etal Effect of age, weight, race, sex on blood pressure and erythrocyte sodium pump characteristics. Clin and exp Hypert Part A Theory and Practice. 199, 12,(6):1115-34
Good sodium-potassium ratios offer more energy. If you burn more, you lose more weight. Caveat: caloric deprivation decreases potassium levels and thereby glucose and insulin efficiency. When potassium supplementation accompanies a diet, better insulin and glucose utilization are a bonus benefit.
Norbiato G etal. Effects of potassium supplementation on insulin binding and insulin action in Hum obesity. Eur Jnl of Clin Invest 1984, 44:414-9
23. Alcoholism
Low levels of potassium are associated with alcoholism and also with intensity of symptoms. Potassium excretion increases with alcohol ingestion. Alcoholics frequently exhibit potassium deficiency. In the early ‘90’s, about 300,000 annual sudden deaths in the US were related to alcoholism. Arrhythmias and stenosis have been implicated. In 1978, the term “holiday heart syndrome” was described by researchers.
Ettinger PO etal “Arrhythmias and the Holiday Heart; alcohol-associated cardiac rhythm disorders. Amer Heart Jnl, 1978, 95(5)555-62
24. Hearing
The activities of the sodium potassium pump decrease significantly in the presence of intense noise exposure. Metabolic disturbance may aggravate inner ear hair cell damage, leading to hearing loss. Hair cells of the inner ear work as electroreceptors, the outer hair cells as electrocytes. A layer of potassium ions on the lower surface of the membrane causes excitation of the inner hair cells as soon as certain contact occurs.
Mark HE, Inner ear as an electrosensory organ. Laryngo-Rhino-Otologic, 1991July, 70:340:-9
25. Urinary Incontinence/ Bladder control
Urinary leaking is found to be the result of cells low in potassium.
This comment was not from Dr. Kamen’s book. Sufferers of this condition would be well advised to give potassium a try if they have normal kidney function.
A multi-centre study of potassium deficiency in the elderly (1973)
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informahealthcare.com]
[It’s a shame this fact isn’t more commonly known; but then, it might cut down on the sales of Depends and the like.]
Many other conditions benefit from optimal potassium…
The foregoing are just a few of many listed in the book. I did not include: details on elevated cholesterol and hypertension, stroke as related to hypertension, osteoporosis, colorectal polyps, tear function, cataracts, AIDS, regulating acid base balance, fertility, pregnancy and lactation. Additionally, potassium deficiency is recognized in Rheumatoid Arthritis patients and in some general arthritis conditions as well.
Just as a reminder:
•The hormonal control of potassium is mediated through the adrenal cortex hormones and hormones of the anterior pituitary gland.
•Retention of potassium is facilitated and ensured by magnesium. The heart muscle cannot hold onto potassium in the absence of magnesium. Magnesium is required for proper function of the sodium-potassium pump.
•Vitamin B6 assists potassium metabolism and helps assure potassium adequacy.
Sodium recognized as detrimental in 1852
Too much salt (sodium chloride) in the diet is probably the worst offender. In 1852, R. T. Trall, MkD, from New York wrote in Hydropathic Encyclopedia....
“ The theory that additional salt in the diet is essential is miserable trash at beat. Perhaps there was never a great and more general delusion in relation to the nature, properties and uses of common salt.”
The one nation that shakes more salt into its food than any other country in the world is the United States of America.
REFERENCE
All statements and excerpts are resource referenced from the book “Everything You’ve Always Wanted to Know About Potassium, but Were Too Tired to Ask!”... by Betty Kamen, PhD. Published in 1992, the study references from this book indicate there was an amazing amount of important information known back then about potassium. It seems to have been forgotten over the years.
I had the privilege of being in the audience for one of Dr. Kamen’s presentations when I was first embarking on my holistic healing journey.
Bio
For more than half a century, Betty Kamen's voice has been heard in the developing arena called "The Nutrition Movement." She often refers to herself as the oldest "health nut" in the country, and for good reason. Her interest was first peaked in 1948, when her amazing career began to unfold. Dr. Kamen has 24 books in print, and has had more than 500 articles published in national magazines. Her "gigs" have taken her all over the world in her decades-long efforts to bring important underground, health-promoting knowledge your way, the kind of information that eventually reaches mainstream (when it is too often too late for many). She is an honorary member of the Indonesian Medical Society, and is well-know in Singapore, Malaysia, Taiwan and Japan.
Betty Kamen, with graduate degrees in psychology and nutrition education, is internationally known as a distinguished author, lecturer, and nutrition consultant. Betty is in constant demand as a radio and TV talk show guest and host, with countless media appearances to her credit. More than 500 articles written by Dr. Kamen have been published in national magazines. She has written books and several booklets for eminent publishers.
Betty has been honored with an ultimate tribute: A full page feature story in the New York Times describing her work and lifestyle. She has also been the only non-laboratory research reporter invited to participate in both the International Palm Oil Research Symposium and the Sixth Annual Asian Congress on Nutrition in Kuala Lumpur, Malaysia. She is also an honorary member of the Indonesian medical society.
Dr. Kamen taught at Hofstra University and developed a nutrition program for, and presented seminars at Stanford University Medical School (Continuing Education Department). She served as nutrition consultant for the Committee of the Accrediting Council for Continuing Education and Training, Washington, D.C. Betty is often the keynote speaker at regional and national health trade shows. She presents endless consumer seminars, lectures and workshops, both here and abroad, sponsored by manufacturers and health organizations.