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I've always wondered if the different levels in carb tolerance that we often see has anything to do with genetic differences that related to ethnicity.

I, for example, am half Italian (mother born there) and half Jewish-Russian (perhaps Belarus; immigrated many generations ago), and I am fairly sensitive to carbs: I can't lose weight without going LC.

What about you, fellow Paleohackers?

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Don't you think that absent understanding the extent of ones metabolic derangement prior to starting Paleo or any diet for that matter (LC vs LF), that the answers you receive will be bordering on meaningless (and I'm being polite here)? I am really struggling with the continued obsession of so many in this community with macronutrients and I write this with the utmost of sincerity and respect. And for the record, I did not downvote the question – Aravind Aug 3 2011 at 1:37
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That's a good point, and to some extent such information will be picked up by ethnic background - ie my italian mother fed me lots of pasta, which probably left my metabolism deranged. This post is a first cut. Further refinements will definitely be in order. Plus, the more info people provide, the better. I'm in the business of hypothesis testing, personally, and I always like to start as simply as possible. – Eric S Aug 3 2011 at 1:42
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82 Answers

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native american czechoslovokian austrian/german

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1/2 Norwegian 1/2 Welch. Can't handle carbs at all.

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Danish/German/Swedish

I do really well on VLC but since I'm very active, I eat quite a few carbs (especially PWO and evening). Preferably, I eat cooked chestnuts when I need lots of carbs in little time --> PWO

The only fruits I eat are berries when they're in season. Not good with fructose...

Cannot tolerate grains at all! My mother(swedish) is celiac (Sweden is known for its significant number of gluten-intolerant people), so I kind of grew up with no grains. Just a buckwheat cookie every once in a while.

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By the way, would all you Native Americans please read this:

http://www.energybulletin.net/print/57395

Well, no, everybody should read it.

It's not the carbs per se, it's the high-yield, high-glycemic modern hybrids that get us in trouble. They push us over the edge.

The old-time Native Americans were the world's greatest horticulturalists, and if we moderns didn't go screwing things up, we'd all still be healthy.

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spanish and native american.

i can handle carbs. just not gluten. causes acne and makes my heart race.

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Biological mother: Haplogroup H, supposedly English and German ancestry

Biological father: Haplogroup G2c, Ashkenazi Jew

Lifelong problems with carb metabolism, starch being especially problematic

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Latvian, Roma, Portuguese. Sensitive to carbs, family history of carb intolerance.

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German/Irish/Slavic - Was horribly carbohydrate intolerant/metabolically broken. If I wanted to lose weight I needed to stay below 20 grams of carbs a day. I had horrible blood sugar swings and gained weight at the drop of a hat (5 lb from one higher carb meal was not uncommon). Since giving up gluten entirely (3 months) I have noticed a higher carb tolerance and no blood sugar swings if I stick with paleo-friendly carbs. I've also noticed that I don't gain weight as easily from carb consumption. I still keep fructose and rice to treat status. It's new and I'm still tweaking it, but right now I'm still keeping my protein and fat as my primary food have maybe 75 grams of carbs a few times a week. I may still have to go lower if I want to lose the weight, but it's nice to not have the crashing/shaking/craving/hungover feeling all the time.

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Has anyone else noticed how cool it is that almost all of us are a wonderful genetic mixture of everything and the kitchen sink?

I'm Ashkenazi Jewish from Romania and Ukraine.

No problem with carbs. Went low carb on GAPS and it didn't do me any good.

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indian (i.e south asian) - pretty good carb tolerance. I can eat loads and not gain much weight.

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Equal parts Manx, Irish, French, and English.

Weight-wise I'm very sensitive to carbs on the margin. If I eat a lot of potatoes, my abs are much less well-defined. I have no idea whether this necessarily indicates that I'm less healthy overall with carbs.

As a vegan I ate a carb-heavy low-fat diet of chickpeas, tahini, oatmeal, peanut butter, bananas, hemp protein, potatoes, rice bubbles, cheeseless pizza, fruit, bread, pasta, rice, etc... I felt fine but didn't have well-defined abs even as an intensely-training college athlete.

Switching to Taubesian fat-heavy LC (eggs, meat, milk, canola oil, peanut butter, one slice of bread per day, diet soda, etc.) I lost the visceral fat in a few weeks while doing no deliberate exercise.

I don't believe I had a particularly "deranged metabolism" as I've never been significantly overweight, never had any significant health problems, had always had good medical markers. So my anecdotal experience fits exactly with the most simplified Taubes explanation.

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African American, Jew, Chinese, native American, Indian(hindu)..can't tolerate too much n a day or my stomach feels weird and I feel like I have to throw up.

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im german. and i think somehow french and influenced by alot of ethnicity. im not sure.pprobably from france and from the north and from wherever. i like this ethnicity and diet. maybe there are other questions like this. maybe on fat digestion. on diary, on gluten, on fruits, on cooked or raw food, on suburn,....better like ethnicity is also bioregion. which mahor bioregion your lived in and grown up. from desrt to tundra to rainforest to forest to grassland, to swamps, to wetmoisture climate, to cold dry climate, to icing climate, to dry hot climate, to moisturehot climate.

What ieat carbs for. i eat nuts. i eat fruits bannanas dates. i think datex make me osmehow problems. and i have also sometimes not good feeling with bannanas. still i more like it than eating fats high leve.i feel well with eating less fat. osmehow. maybe also ethnicity thing?!

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Caucasian of Dutch, German, Scottish lineage. Have become extremely carb sensitive and can gain 5 pounds in a weekend if I don't watch it. Also feel great and lose quickly on VLC.

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I'm a typical blue eye blonde hair north European-er(mostly norwegian and danish ancestery) and I can tolerate carbs very well. I've tried lower carb and it never works out.

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Indian and I'm not too bad high carb for a week or so, but after that, one day I really get drained of energy and feel terrible.

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Mainly Ojibwe (American Indian), French and German. Life tends to suck when I'm eating carbs. I realize now that this has been the case ever since I was a little girl. I remember the blood sugar swings during childhood, as well as the acute stomach aches, probably from wheat intolerance.

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In order: Welsh, English, German, Scottish, Irish, German-Jewish, and French as best as I can ascertain (dad's family has been here for ~400 years, but good records kept - mother's family mostly immigrants, records sketchy).

Moderate starchy carb and fruit tolerance.
Good dairy tolerance.
Poor gluten and sugar tolerance.

Even when I ate higher carb, protein and fat were essential for me to feel full.

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Irish, Polish and German,

Super sensitive to ALL carbs. As soon as I eat them I crave more. I also feel awful. Diagnosed Celiac in 2002. Not sure if I can do dairy. I am having a hard time cutting it out and morn for it frequently. Probably should loose it. :(

My family is almost all celiac/gluten sensitive (even though they tent to deny it until health fails, autoimmune style). They have the typical build of those who were once very thin but piled on the middle. Most are overweight except the boys. 12 of us total so I have a pretty decent study population. :)

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I totally get the mourning for carbs. When I first quit gluten in 2002 I had dreams of eating bread for almost a full year. I attribute this to the incredibly addictive nature of these grains. 12 opioid sequence contained in them doesn't help. I swear they were like prozac for me. What a mess! 9 years later and only two accidental gluten exposures I finally no longer dream about bread. :) Good for you for skipping the fast food! That stuff is not food and should be called fast crap. My 7 year old has only eaten fast food twice in her life and both times she left the food and kept the toy.smart – GlutenFreeNP Aug 4 2011 at 18:15
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Irish, Scots, English, French, probably quite a bit of Norse far back (family physical characteristics lead me to believe this). Insulin resistant. Low carb tolerance. I feel much better physically and mentally if I keep it in the LC range.

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Mostly Portuguese. Like with pain, I have a high threshold for carbs. I can pack 'em.

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Mostly British heritage. Possibly a little irish.

I do better on moderate to low carb. I do horribly on zero or high carb.

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Caucasian of Irish & Polish ancestry. Photographic evidence shows me that females on the Polish side of the family were all on the zaftig side in adulthood; I definitely followed the family pattern. Not sure about the Irish side. Still in the midst of re-balancing, but VLC seems to be the way to go for me right now.

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Indian/African/Canadian

Can handle anything less than 150g a day without getting pudgy, although I feel great at around 50g. Usually stick with high fat, LC and it keeps my energy constant through the day.

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Big dumb Swede full-blood with no carb tolerance whatsoever. At least not anymore. Feel much better without.

My entire adult life, I've had a spare tire around my middle and unrecognized problems with insulin spikes. Now I finally know better, after a severe brush with heart disease.

I was a pot-belly even in kindergarten, come to think of it. Dang, I had eyeglasses since fourth grade, now my eyesight is finally getting better. Stuff like that. Makes my wanna giggle & cry.

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I am 1/2 German and 1/2 Northern English/Scottish.
My blood sugar would swing all over the place before I started trying to follow a more paleo way of eating. I feel better on a moderately higher fat diet, and also eat yogurt, cream, and cheese in small servings nearly daily. I also found it interesting that I never had a problem with "carb flu".

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im german, european,indo germanic slavik nordic, jiddish jewish, probably caucasian, french, swiss, irish, viking, scnadinavian, mongolian, turk, finnouiguric, asian,...african, and some precent a monkey and gorillas, than a bit indonesian, and from larador island. How do you know do you make DNA marker test. anthing ales is just not real accurate.

We have so much contact i our modern global world. Ever have contact and sex with any one. How you know that you stay that pure your label ourself. I thik we cant do. Mutation was always a part of human evolution and it will be.

ITs nice if some one can summ up this Hack and write and article to clear this stuff up. Thank you for your posts,

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Romanian/German/Macedonian - Born in Australia

I seem to do much better low carb and I find that when i'm low carb It keeps my overeating-emotional eating in check too.

A few weeks ago I cheated by eating a scone and my blood sugar dropped and lost all energy and was shaking, slept like a baby!

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I don't believe most ppl are "intolerant" of carbs. I feel this question comes down to, if you're indulging in processed carbs which are hyperpalatable, how much can you indulge in before you start to gain weight. The people who swear by a certain amount of carbs before they add the lbs are also ppl who are still kind of fat, and would do well to reduce the palatability of their low-carb foods i.e. cutting out bacon/sausage and fancy recipes. Learn to eat simple homecooked whole foods that aren't complex.

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American mutt, 75%+ Norweigan...gained waist/belly fat on VLC. Need carbs- 50g-150g depending on my activity level. Best options: sweet potato, purple potato, dairy, white potato. Middle options: tapioca, buckwheat. Workable but less-ideal: rice, quinoa. Problems with significant fruit of any stripe.

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