When deprived of dietary choline, 77% of men and 80% of postmenopausal women developed fatty liver or muscle damage, whereas only 44% of premenopausal women developed such signs of organ dysfunction. Moreover, 6 men developed these signs while consuming 550 mg choline ..., the AI for choline. Folic acid supplementation did not alter the subjects’ response.
Subject characteristics (eg, menopausal status) modulated the dietary requirement for choline, and a daily intake at the current AI was not sufficient to prevent organ dysfunction in 19 of the subjects." out of Fifty-seven adult subjects (26 men, 16 premenopausal women, 15 postmenopausal women)
Thanks for sharing! It will be interesting to see if an RDA can established for choline in the next few years.
Susan Macfarlane, MScA, RD
Registered Dietitian Nutritionist
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From my reading and experience so far it seems the wiser approach might be personal DNA testing, and doubling (at least) the current recommendations for anyone with a fairly common PEMT polymorphism, especially post menopausal women.
This is available to us now, no waiting required, and might prevent permanent damage to those with the greater need.
This would enable VERY careful dietary choices for anyone finding they fall into the higher need categories, and hopefully put an end to naive reassurances...
Apparently there are other known polymorphisms in other SNPs besides PEMT, I would not want to mislead anyone,
"Given the body of research linking dietary choline (methyl) deficiency to increased mutation rates, strand breaks and liver cancer, it is plausible that SNPs that increase human dietary requirements for choline (in PEMT, CHDH, BHMT or MTHFD1) will alter the risk of cancer. " found at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3319504/
I started taking a 401mg choline supplement once a day figuring that I was probably getting more than was shown in my diary. I was concerned because meats are a good source and in getting my weight and blood pressure down by diet I don't eat much meat. Even though I'm not vegan I'm not about to eat beef brains when I can take a capsule.
Eggs are said to be the best source of choline.
Here is some further/new information from one of my DNA tests, to further quantify what some of us need, in my case TWICE the normal recommendation for choline (up to half may be consumed as betaine) (which I was already not meeting on my "excellent vegan diet") meaning I would need to consume 8 servings of the foods listed below. I am awaiting liver & gallbladder ultrasound results now.
Credit to Chris Masterjohn PhD:
"According to my calculations you should eat the amount of choline available per day in 8 egg yolks or equivalents (see below).
**Your genetics also suggest that failing to meet your choline requirement is extremely likely to hurt the health of your liver and gallbladder, and to hurt your ability to digest and absorb fat.
Alternatives to Egg Yolks
In the lists below, you can find examples of foods that provide either large amounts of choline or its partial substitute, betaine.
The foods below provide the choline equivalent of about one egg yolk.
Weights for meats are before cooking, while nuts, seeds, and flours are measured after drying or roasting.
I recommend limiting liver to an average of 30 grams per day or 200 grams per week to avoid getting too much copper and vitamin A.
1 tablespoons of lecithin
40 grams of beef liver
44 grams of veal liver
62 grams of turkey liver
71 grams of chicken liver
143 grams of salmon
135 to 285 grams of most meat, fish, or shellfish
172 grams of flax seeds
185 grams of pistachios, quinoa, amaranth, or pinto beans
215 grams of pumpkin or squash seeds, or cashews
250 grams of pine nuts, edamame, buckwheat, sunflower seeds, peanuts, or almonds
The following foods primarily provide betaine, which is closely related to choline and can partially substitute for it. Each of these provides roughly the equivalent of one egg yolk as betaine, and you can use these foods for half of your egg yolk equivalents:
24 grams of quinoa
25 grams of wheat germ
37 grams of wheat bran
44 grams of raw lambsquarters
57 grams of canned beets
83 grams of dark rye flour
105 grams of frozen spinach
112 grams of raw beets
140 grams of whole wheat flour
143 grams of raw kamut
Does anyone else think lecithin soy granules are the best way to get most of Choline ?
12 grams = 1.5 tablespoons = 400 mg of Choline.
Sounds like a deal to me. I haven't found something more concentrated than this.
We already have in Cronometer a product called "Bob's Red Mill, Lecithin, Soy Granules".