Study: Low Carb Diet May Prevent, Reverse Age-Related Effects Within the Brain • Hacker News Board

Re: Study: Low Carb Diet May Prevent, Reverse Age-Related Effects Within the Brain

#341

Post by tracker1 » Mon, Mar 09, 2020, 9:25 PM UTC

bad_user wrote: post #327

tracker1 wrote: post #291

Earlier quoted context omitted.

I'd say modern grains and "vegetable oil" are probably the biggest issues... heritage grains in moderation are more okay. We take in a lot of refined grains and sugars. And cook everything in oils people wouldn't recognize as food a couple hundred years ago, let alone trans fats. That combined with a huge uptick in constantly eating all the time, sugary drinks, etc... eating 6-8 times a day. Most people can get away…

There is no evidence available that "vegetable oil" is unhealthy in any way, other than the calories. There is no good evidence for example that "Omega-6" rich oils are inflammatory, quite the contrary, we've got several systematic reviews and meta analyses claiming they are not. And the n-6 : n-3 ratio is completely arbitrary (most ratios in nutrition are). We've got much better evidence for example that saturated f…

Modern grain varieties don't resemble their heritage counterparts. Modern wheat (since the 70's) sees something like 19x the immune response. As to seed oils, frankly I just don't see a need to support heavily processed and refined foods in general, in particular margarine and vegetable shortening.

As far as over-eating and meal frequency... hormones are part of the calculation, you can clear more calories with less hormone response in fewer meals. If you look at tribal cultures with a food abundance (near coastal fish) would only eat once a day or so. Spiking glucose/insuline more times a day isn't so great in general.

I think we're mostly on the same page... I'm more than happy to see people eat more from whole plant meals with a more nose to tail approach to meat consumption. Not to mention a huge a shift in the types and qualities of meat and fish.

I think the level of refined sugars, oils and modern grains are a big problem... so is, for that matter, poorly raised animals and mono-farming in general. Optimizing for yield and efficiency seems to have lost a lot along the way imo.

One aside, while some can eat massively in a single meal... it's very hard for most people to overeat in a single meal. Harder still to do it consuming meat/eggs/fish and greens. Calories count, calories are king in terms of what we eat... and hormone response is queen.

Re: Study: Low Carb Diet May Prevent, Reverse Age-Related Effects Within the Brain

#342

Post by kyuudou » Mon, Mar 09, 2020, 9:59 PM UTC

com2kid wrote: post #323

kyuudou wrote: post #322

Earlier quoted context omitted.

I disagree partly here based on personal experience with BJJ. I simply cannot summon fast-twitch muscle "burst" cardio on a full keto diet. After months of trying all kinds of workarounds, I had to carb-load with glucose pills (the kind diabetics take) the night before and pre-workout. Long-term steady endurance massively increases though. If there's no bursting, I find that I can workout for hours on keto, it's amaz…

> I disagree partly here based on personal experience with BJJ. My experience includes BJJ! :) Of note I've been keto adapted for years , so I am likely an edge case. That HR recording I linked to is of a kickboxing endurance bag workout (Bas Rutten's routine if you are at all familiar with it), nothing but explosive power against a bag, every punch 100%. Now at the end of it, can I lift as heavy? No, carb load and I…

Awesome, thanks for the reply! Yea, I was trying to find a way to have a permanent high-fat keto diet for BJJ but it just wasn't happening. It was kind of a personal experiment and I was pleased with the outcome. Great way to drop a few extra pounds before weigh-in, though. Discrete carb-loading is unavoidable, though.

>The kicker about BJJ is that after class, these guys who are much stronger than me are winded and I'm walking around upset no one wants to keep training. Everyone is doing crap like sitting down and resting!

As you probably know, they are Doing It Wrong. Most of the higher belts I've known are skinny (sometimes barrel-fat) and not mega-huge muscular because their technique is orders of magnitude better so they don't need to rely on muscling everything. My main professor always skips the heavy warmup on his days and just does enough to get the blood flowing and joints warm which is funny - he's really good.

I really started to think about this once I got my ass handed to me by a teenage girl purple belt who couldn't have weighed more than 90 lbs wet. I was trying on purpose not to use my size and strength but quickly realized my technique was much worse than hers. One of the great benefits of BJJ is this kind of instilled humility. Not much room for silverback gorilla bullies.

Now, competition, particularly no-gi, is a whole different ball game in my experience. There, maximizing strength to weight ratio is of crucial importance because the other person is supposed to be of roughly equal technique and when it comes down to it, whoever's stronger usually has a better chance.

Re: Study: Low Carb Diet May Prevent, Reverse Age-Related Effects Within the Brain

#343

Post by riku_iki » Fri, Mar 13, 2020, 5:22 AM UTC

stjohnswarts wrote: post #103

riku_iki wrote: post #70

Earlier quoted context omitted.

The biggest issue with ketogenic diets is elevated level of cholesterol, which is generally considered harmful, though there are different views on this topic.

I have always had very normal cholesterol numbers. It gives you a better HDL (good chol) to LDL(bad chol, maybe) ratio and is good for lowering triglycerides (definitely bad chol) which is the worst type of cholesterol. Your information is not true and is a common misconception about the diet.

> It gives you a better HDL (good chol) to LDL(bad chol, maybe)

also try to search "ldl blood test" on r/keto, there are tons of people report much higher ldl after switching to keto.