Skip to main content

Eating a Ton of Vegetables Isn't a Good Idea

I love vegetables. There are so many foods that I can't eat that meals would be boring without them. In fact, I like them so much that I planted five kinds of lettuce and two kinds of tomatoes in my garden today. All the same, stuffing yourself with vegetables (or anything else) isn't good.

1. Fibrous vegetables can drive up your blood sugar if you eat enough of them. In one of his books, Dr. Richard Bernstein discussed a patient who ended up with a very high blood sugar after eating a head of lettuce. There are stretch receptors in your intestines that, when they sense you've eaten a big meal, release hormones that can end up raising your blood sugar. Bernstein calls this the Chinese Restaurant Effect.

2. All food is inflammatory. As Michael Eades put it,
Eating is an inflammatory process. A number of scientific studies have shown that eating a meal, regardless of the macronutrient composition, causes acute inflammation, which makes sense when you think about it. Food coming into the body is a foreign substance that fires up the innate immune system – but it does so briefly until the food is digested and the various fats, proteins and carbohydrates are broken down into their basic units and absorbed into the blood stream. (Although it might seem strange that food that we absolutely need to live could cause inflammatory problems, it makes sense when you realize that the very oxygen we breathe and that we would be dead in about four minutes without is slowly killing us also.) 

Caloric restriction is no fun, but is it worth it to stuff yourself with inflammatory brussels sprouts?

3. Certain vegetables can upset your stomach. Contrary to conventional wisdom, if you're in distress after eating certain vegetables (broccoli, cabbage and cauliflower and best known for this), the answer isn't to adapt to it, unless you're punishing yourself or the person who has to smell your gas. The answer is to eat less of them, or in some cases give them up. Given our digestive system is more like that of a carnivore than an herbivore, it's natural that some people have limited tolerance for vegetables and surprising that some people can eat so much of them.

4. Fibrous vegetables are calorie-poor. People have been so focused on cutting calories for so long that this might seem like a good thing. But many people have described problems on low-carb diets such as low energy, poor mood, hair loss and feeling cold--all things that are symptoms of low-calorie diets. Many report the symptoms go away when they add starch to their diet. You could also say they've added calories to their diet. This phenomenon seems to have come up at the same time that it became fashionable to gorge on fibrous vegetables. The low-carb diets of decades past called for a generous amount of fat, not fiber.

5. Finally, it's wasteful to gorge on anything. If you recycle your trash, compost your peelings, drive a Prius or take public transportation, eating pounds of vegetables every day (far in excess of what you need) doesn't make sense. Vegetables have to be irrigated, fertilized, sprayed for pests (even organic vegetables), and shipped to market. And they cost money! There's no need to give them up entirely, but there's no need to gorge on them, either.

Comments

Galina L. said…
I also want to add that the modern concept that your vegetables have to be as close to the raw state as possible adds to the problem of a vegetable digestion. It is especially true for the cruciferous veggies.
Lori Miller said…
Agreed. Food in general is easier to digest when it's cooked.
Almond said…
I think Dr. Bernestein's "Chinese Restaurant Effect" is really illuminating and explains why a high-volume, low-calorie diet may not be in one's best interests. So people loading their plate with 80% plant matter and only 20% protein/fat may be doing their body a disservice.
Lori Miller said…
Yes, when you consider that we have guts very similar to carnivores and not much like herbivores, some people are going to have significant problems on such a diet.

Popular posts from this blog

Moving on to YouTube

Remember when the blogosphere was a wild ride? Doctors, writers and researchers dove into research, picked apart studies and stood up to official advice and conventional wisdom that didn't work. We found each other in the comments and made a community.  Along the way, Dr. T. Colin Campbell's research got exposed as shoddy by an English major, Tom Naughton made us laugh, "safe starch" fads made us scratch our heads, "Diabetes Warrior" Steve Cooksey almost went to jail, CarbSane trolled everyone who was anyone, and CarbSaneR trolled the troll.  Now it's very quiet. Blogs don't come up in Google search results anymore and even if they did, most of the bloggers have stopped writing.  That's why I've moved on to YouTube. Videos do come up in search results and my shorts--which are mostly what I make--get pushed out to hundreds of people or more. My videos are on food and health (biohacking), but also on growing things and fixing things. If you...

Holiday Dinner Tip from Restaurant Pros: Limit the Menu

After watching some people online getting freaked out about trying to put on holiday dinners and getting overwhelmed to the point that they're thinking about canceling the whole thing, I thought I'd put out a restaurant tip that will help people put on a dinner with less aggravation. A big complaint among the frustrated home cooks I've seen is that family members are not contributing to the dinner. But a bigger problem I see is that their menu is just too big. One lady's family is having her make 12 dishes all by herself, and some of these dishes look pretty complicated. Watch the video here or read on. The reason this is aggravating is that more dishes mean more shopping, more prep, and more cleanup. It's hard to make several dishes that will all be ready at the same time. Even though I used to be a prep cook at a restaurant, I've put on Thanksgiving dinners myself, and I cook from scratch almost every day, there's no way I'd try to make a 12-course di...

Palpitations Gone with Iron

Thanks to my internet friend Larcana, who alerted me to the connection between iron deficiency and palpitations, I doubled down on my iron supplements and, for good measure, washed them down with Emergen-C. It's a cold medicine with a mega-dose of vitamin C, plus B vitamins and minerals. I don't think vitamin C does anything for a cold (a friend bought the stuff and left it at my house the last time she visited), but vitamin C does help iron absorption. After doubling up on iron in the last three days, I feel back to normal. (I'd already been taking quite a bit of magnesium and potassium, so I probably had sufficient levels of those.) How did I get so low on iron? Maybe it was too many Quest bars instead of red meat when I had odd cravings during my dental infection recently. Maybe because it's too hard to find liver at the grocery store and I haven't eaten much of it lately. Maybe the antibiotics damaged my intestines . And apparently, I'm a heavy bleeder . ...

We Hate the ADA; Why does the Perfect Health Diet Get a Pass?

Some people keep touting the Perfect Health Diet as low-carb, but carb levels that are mostly in the triple digits aren't generally regarded as low-carb; in fact, one of the authors says low-carb diets are unhealthy. A lot of us hate the  American Diabetes Association's advice for diabetics: start with 45g to 60g of carbohydrate per meal and go higher or lower from there. That's 135g to 180g of carb. Perfect Health Diet advice for diabetics: eat 20% to 30% of your diet as carbohydrate. On 2,000 calories, that's 100g to 150g of carb. On 1,700 calories, that's 85 to 128g; on 2,200 calories, that's 112 to 168g. Depending on your carb and calorie intake, carbs would be 85g to 168g per day. That's not a mile off from the ADA's recommendations. Paul Jaminet, one of the authors of the Perfect Health Diet, says, "the basic biology here is that the body's physiology is optimized for a carbohydrate intake of about 30%." He warns against a ...

Fly with Reuteri

If you're planning to travel by plane and you want to keep enjoying the benefits of l. reuteri yogurt, you might have gotten sticker shock from the price of l. reuteri probiotics. MyReuteri * costs $46 to $83 for 30 capsules, depending on the CFUs (colony-forming units, or the number of viable microorganisms). If you're thinking about economizing by putting some yogurt in a sturdy container and taking it with you, you can do that. I'll break down the pros and cons and look at some alternatives.  Photo from Unsplash . Cost Yogurt might be less expensive than probiotics, but it isn't free. A half-cup serving costs about 70¢ to make if you start with a previous batch. It contains about 90 billion CFUs if fermented for 36 hours.  This is a lot less than $5.56 for two capsules of 50 billion CFU MyReuteri, but for a one-week vacation, you'd only save $34 by eating yogurt instead. (You can freeze any unused capsules for later.)  Furthermore, the yogurt would have to go in ...