Amazing Facts on Nutrition, Part 2

Here are questions I often hear often.

“How can I make sure my diet is nourishing?”

Answer:  “Eat a variety of food. By consuming a good mixture of vegetables, fruits, grains, proteins, and dairy products, you’ll get everything you need.”

“How will I know if I’m missing something?  For example, how can I get enough riboflavin?  What foods have riboflavin?”

Answer:  “I don’t know.”

“You’re a doctor, and you don’t know the foods with riboflavin?”

Answer:  “I could look it up. It’s not important. Eating a variety is important.”

“I haven’t had much energy lately. Is it because I’m not eating right?”

Answer:  “Probably not.”

What should you do first if you're anemic?

Answer:  Find out where you’re bleeding. The most common anemia is the result of blood loss.

Amazing Facts on Nutrition

Although a third of the world would be better off on the typical American diet, it’s not ideal, but the defects are not what you believe.

What should you worry about?

Protein?  Not a problem.  Most adults consume more than they need. There’s no advantage to a high protein diet but not much harm either. Your body will use as much as it needs and turn the rest into fat.

Carbohydrates?  Americans should eat more. They’re high in roughage.  Americans need more roughage.

Fats?  Fat is OK. Vegetable fat is probably better than animal fat for lowering your cholesterol. Dieters should be careful about choosing low fat foods. They’re not necessarily low in calories; in fact, manufacturers add sugar to make them taste better.  

Sugar?  Americans consider sugar sinful. Like sin, it’s probably not good for you. Sugar certainly contributes to obesity and tooth decay but doesn’t cause serious diseases such as diabetes or heart attacks.

Preservatives?  They may do more good than harm. In poor countries a leading killer of children is diarrhea, often from spoiled food. This was also true in the U.S. during the nineteenth century. Refrigeration and canning makes this less of a problem today, but considering how careless we are storing and preparing food, preservatives still prevent disease. 

Three Great Sins of the Medical Profession

Critics regularly denounce us for certain practices. These denunciations are more or less correct, but they miss the point.  Examples -

1. Doctors give treatments that relieve symptoms but don’t cure the underlying problem.

Right, but sometimes this is the best we can do. The cure for severe menstrual cramps is menopause, hysterectomy, or pregnancy. Drugs only relieve the pain, but patients appreciate it. No doctor cures migraine, asthma, emphysema, osteoporosis, or the flu, but we relieve a great deal of misery.

2. Doctors don’t pay much attention to diet, liquid intake, rest, and other natural treatments.

We don’t, and it’s the right thing to do.  Diet, rest, etc. help prevent disease but don’t do much once you get sick... A perfect example were tuberculosis sanitariums, the oldest government supported medical program. They began appearing in the nineteenth century. Patients received nutritious food and plenty of rest in a healthy, rural environment. They were discharged (sometime after years) when their TB became inactive. No one was cured, and many relapsed. When drugs appeared after 1945 sanitariums closed. Nowadays doctors encourage TB patients to adopt a healthy life-style, but they’ll get better if they don’t – provided they take their drugs.

3. Doctors spend too little time explaining how to relieve stress.

Perhaps....  Stress makes everything worse but doesn’t cause anything. Seeing a doctor for stress results from what I call the “medicalization of society” - the notion that life’s difficulties (a hateful job, unsatisfying sex life, shyness) represent a medical problem. There’s no harm in this; a good doctor can listen sympathetically and make sensible suggestions which require no medical training.

Why You Get Sick

When I walk into a hotel room, guests often tell me why they fell ill. They also blame themselves. In both cases they’re usually wrong.

You don’t get sick because:

        1.  Your “resistance” is low.  You got that cold because another person gave it to you.  If it’s your fifth cold of the year, this is a sign of what we in the medical profession call bad luck.  It’s not a defect in your immune system.  People with poor resistance suffer terrible diseases.  There is no immune defect that gives victims too many minor infections.

        2.  Your diet is missing something.  Americans suffer plenty of nutrition-related ailments, but most result from too much rather than too little of some element.  Examples are obesity, high blood pressure, coronary artery disease, and tooth decay.

        3.  You don’t get enough (sleep, exercise, water, leisure).  Researchers have proved beyond a doubt that lack of sleep makes you sleepy.  Subjects kept awake for days become very drowsy.  They don’t get sick.  Exercise improves your sense of well-being and strengthens muscle and bone, and it probably slows osteoporosis.  Vigorous, long-term activity may protect against coronary artery disease and prolong life.  Among younger people, sloth is not responsible for any disease.  Drinking x glasses of water a day is a harmless folk remedy. Doctors often suggest it to prevent bladder infections, but that’s common sense (i.e. it sounds good, but there’s no evidence that it works).