Friday, August 26, 2011

Two links to nutrition info and videos that I like

I like a blog by Jack Norris at JackNorrisRD.com, on plant-based diets- it's great if you have any questions about how to get the vitamin B12 and iron and protein you need if you are a vegan.

Jack shared a link to a site called NutritionFacts.org that has some interesting videos. I watched a few of them and they are short and provocative (two good things).

If you check out the videos, let me know what you think.
Gerda


Monday, August 1, 2011

Soybeans are not dangerous

There have been all sorts of rumors about dangerous things in soy, such as estrogen-like compounds that might have feminizing effects or encourage the growth of some breast cancers, or compounds that might be bad for your thyroid gland. Stop worrying!

There is no evidence that the very slight estrogen-like activity in soy has any harmful or even significant consequences. I wonder if this rumor is promoted by the dairy industry– since cow’s milk makes your blood cholesterol go up and soy products make it go down, they need to grasp at some straws.

Just remember that Asian cultures have eaten tofu, made soymilk and enjoyed good health for thousands of years. For you jocks it is a rare vegetarian source of high quality protein. For those of you worried about heart disease it contains healthy polyunsaturated fats, plant sterols and fibers to lower your blood cholesterol.

You probably don’t want to overdo it, just like you don’t want to overdo anything, even things as healthy as drinking water and getting some sun. And I wouldn’t want to subsist on all sorts of products made out of highly processed soy powders- or other kinds of refined or purified products– but there isn’t any reason to shy away from tofu or edamame or a glass of soy milk.

Friday, July 15, 2011

Catch the US women’s soccer team competing with Japan in the World Cup finals on Sunday

It’s pretty amazing that the US women’s soccer team will be competing in the finals of the World Cup on Sunday. Not knowing many celebrities, I’m excited that I know a member of team USA, defender #19, Rachel Buehler, who was a student in a class on fat nutrition I teach at Stanford University. Maybe she gets some of her energy and stamina from eating healthy fats? Go Rachel!

Monday, June 6, 2011

Is there such a thing as a refreshing alternative to soda?

Someone asked for ideas for a drink that could satisfy a craving for something sweet but not be as unhealthy as soda. There is nothing that’s just like soda- carbonated, refreshing and sweet all at once- after all the food industry has spent a lot of time and money figuring out exactly how to make sodas addictive. So it might take a little time to get used to an alternative but it’s worth the effort.

How about orange juice, apple cider, grapefruit juice, grape juice or Martinelli’s Sparkling Cider for the sweet craving, and plain sparkling water with a wedge of lime for refreshment? Juices don’t contain artificial additives and they do contain all sorts of minerals we need, including potassium and magnesium, which are good for your heart and circulatory system. Americans don’t get enough of these minerals, partly because they’re removed when grains are refined- think about this next time you eat pasta or French bread.

Wednesday, May 18, 2011

Lowering blood cholesterol- do statins have side effects?

I was asked to comment about the safety and side effect of statins– Lipitor, Pravacol, Zocor and others– drugs that are very effective at lowering blood cholesterol and preventing death from heart attacks. I’m not an M.D., but my impression is that these are pretty good drugs as far as safety and efficacy goes.

However, they can occasionally be toxic to the liver and to muscles, and if you are taking a statin your doctor is probably checking for liver toxicity (ALT/AST) and should be checking for muscle toxicity (creatine kinase). Your job is to note any muscle weakness or pain that might indicate dangerous muscle breakdown, which might eventually be fatal.

If you are concerned, there are two things you can do– one is to take supplements of coenzyme Q and vitamin D along with your statin. I can’t say that the evidence for benefits of these supplements is unequivocal, but I would take them if it were me.

The other thing you can do is to work with me to lower your cholesterol without statins. I’ve had great success with nutritional strategies that go far beyond the pretty useless low-fat recommendations you’ve probably given up on. Look on the testimonials page of my website (healthyfat.com) or search my name on Yelp for clients bragging about their low cholesterol numbers.

Tuesday, May 17, 2011

Does whte bread do any harm?

Although I talk about the merits of whole wheat flour all the time, I don’t think having a little white flour or bread made with a mixture of whole and refined flours is all that bad.

You will be missing out on the fiber, potassium, magnesium, calcium, etc. that are removed when grains are refined. But if the starches you eat are mostly whole foods, like oats or kasha for breakfast, corn tortillas with lunch and potatoes with dinner, then you can afford to add in some white flour.

I like Beckmann’s German Farm Bread even though the first ingredient is white flour. Good nutrition is all about moderation- people who eat whole wheat and not much else become zinc deficient because the fiber binds zinc and you can’t absorb it.

Thursday, April 21, 2011

Does evening-eating cause weight gain?

People seem to think that food is metabolized less efficiently when it’s eaten at night rather than earlier in the day, and that because of this eating at night causes weight gain. I don’t believe this.

Eating in the evening only causes weight gain if you eat too much. Frequently people try hard to ‘be good’ during the day only to end up hungry at night, when it’s all too easy to get more calories than you need from desserts and high calorie snacks. Face it–when you’re hungry at 10 or 11 p.m., do you make a salad or do you have a bowl of ice cream?

Try having more healthy food during the day until you find the right balance and aren’t uncontrollably hungry at night. It’s not just your weight you’ll control but the types of foods you end up eating also.