health

Benefits of Sesame Oil

On Nutrition by by Ed Blonz
by Ed Blonz
On Nutrition | October 30th, 2018

DEAR DR. BLONZ: I enjoy the unique flavor of sesame oil, and was wondering if there are any health benefits. Is it OK to use in salads and also to saute vegetables, chicken, meat and fish? Are there any reasons why I should not use it? I often use extra virgin olive oil and balsamic vinegar for my salads. -- J.P., San Jose, California

DEAR J.P.: Sesame oil is a healthful oil that is composed of approximately 40 percent monounsaturated, 42 percent polyunsaturated and 14 percent saturated fatty acids. It is also a source of compounds called tocopherols, such as vitamin E. The naturally occurring antioxidant lignans in sesame seeds act as natural preservatives for the oil, and together with the tocopherols, they lend this oil its healthful attributes.

Pure sesame oil has a mild flavor and a high smoke point, making it ideal for high-heat cooking methods including those you mention. Toasted sesame oil, pressed from the toasted seeds, has a distinctive nutty flavor used to complement many dishes in Asian cuisine.

DEAR DR. BLONZ: You had written about the diuretic effects of alcohol, and I was wondering if there was any way to minimize this effect. On the rare occasion that I have a few drinks with friends, I tend to be up many times during the night to urinate, which takes all the fun out of it! Would it help to eat salty foods while drinking? -- P.O., Oklahoma City, Oklahoma

DEAR P.O.: My regrets, but there is no satisfactory solution here. Alcohol affects how much urine the kidneys produce, which then gets sent to the bladder in queue for elimination. It does this through a mild inhibitory effect on the hormone that limits how much urine gets produced (thus resulting in greater production). Interestingly, it is the amount of alcohol, not the total amount of liquid, that determines the effect. So a shot can have a similar diuretic effect as a much larger 20-ounce beer.

Your mention of adding salty foods would add a new wrinkle to the situation. Taking in sodium chloride (salt) tends to increase thirst, as a healthy body is engineered to eliminate excess sodium, but the kidney is limited in the concentration of sodium it can put in the urine. Thirst gets stimulated by salty foods because the body “knows” it will have to dilute the sodium to the tolerable concentration before it can be eliminated. This concept is why thirst cannot be satisfied by drinking seawater: The concentration of salt in that fluid is too high, so drinking seawater sets the body back even further.

You can see where things might lead if you seek to satisfy your salt-bred thirst by consuming more alcoholic beverages.

Send questions to: “On Nutrition,” Ed Blonz, c/o Andrews McMeel Syndication, 1130 Walnut St., Kansas City, MO, 64106. Send email inquiries to questions@blonz.com. Due to the volume of mail, personal replies cannot be provided.

health

Washing Produce: Simple Water Does the Trick

On Nutrition by by Ed Blonz
by Ed Blonz
On Nutrition | October 23rd, 2018

DEAR DR. BLONZ: With the recent reports about food poisonings from fruits and vegetables, I wanted to know the best way to clean produce. Is water enough, or should I use more, such as a diluted solution of dishwashing liquid? -- J.D., Phoenix

DEAR J.D.: Fruits and vegetables can absorb liquids to varying degrees; this means that any fluid you use to wash your produce should be approved for food use. Dishwashing detergents, in general, are not. It is important to always clean your produce in potable, running water before eating. This will usually suffice, but if you desire a product that does more, you should seek out one specifically designed for produce washing.

DEAR DR. BLONZ: Please help me out with two unrelated questions. The first is: Is there anything to the theory I keep hearing that foods not indigenous to the area we live in will not be as nutritious? My second question is: What nutrients does the Mexican platano contain? -- M.S., San Diego

DEAR M.S.: Indigenous foods might be more familiar to our taste buds and to our digestive tracts, but in general, they don’t possess any special health attributes.

A 6-ounce Mexican platano, also known as a plantain, contains about 218 calories, along with 2.3 grams of protein, 57 grams of carbohydrate and less than a gram of fat. It is a vegetable, but it looks like a large, greenish banana with a mottled, rough peel. Plantains blacken when fully ripe, but can be broiled or sauteed at any degree of ripeness. They are a good source of dietary fiber and vitamin C, along with folate, carotene and potassium.

DEAR DR. BLONZ: I would like to express my opinion that your answer to the patient with low thyroid didn’t go far enough in explaining the importance of the thyroid hormone in overall health.

You stated that thyroid replacement “may be a reasonable option,” but did not discuss the potentially serious consequences of not following the physician’s instructions. Low thyroid levels can lead to fatigue, memory loss, weight gain, menstrual irregularities, fluid retention, hair loss and, in extreme cases, even coma.

If a patient has doubts about a physician’s advice, it’s always wisest to discuss the concerns with the physician, and, if doubts persist, to seek a second opinion. Patients should not ignore the physician’s advice without letting the physician know about their concerns. I feel that this additional information should be imparted to S.T. and your other readers. -- C.D., M.D.

DEAR DR. C.D.: Many thanks for the read, and for providing the added emphasis.

Send questions to: “On Nutrition,” Ed Blonz, c/o Andrews McMeel Syndication, 1130 Walnut St., Kansas City, MO, 64106. Send email inquiries to questions@blonz.com. Due to the volume of mail, personal replies cannot be provided.

health

For Kidney Patient, Avoiding Seeds Easier Said Than Done

On Nutrition by by Ed Blonz
by Ed Blonz
On Nutrition | October 16th, 2018

DEAR DR. BLONZ: My husband has only one kidney, working at 20 percent. To avoid dialysis, I work to keep all his food low-sodium and low-potassium. The sodium is easy; I changed from salt to cumin, coriander, cardamom, etc. Potassium is more difficult. There are about six vegetables he can have, and I work mainly with those.

That’s the background. Here is the question. The two lowest-potassium veggies are summer squash, in its green and yellow varieties. However, also on the “avoid” list are “nuts and seeds.” Emphasis here on SEEDS. Those squashes are about 50 percent seeds down their centers -- small seeds, soft seeds, but seeds nonetheless. So I lose about half of the veggie as I scoop out the seeds and discard them.

What do you think? The disabled kidney cannot handle seeds, and I want above all to save the kidney. Am I doing the right thing, or working too hard at it? -- H.K.

DEAR H.K.: Please accept my concern about your husband’s kidney issue, and my acknowledgment of his good fortune in having you as an advocate. I do not have the expertise to advise in specifics on this matter, but the National Kidney Foundation (kidney.org) has a “MyFoodCoach” tool designed for such issues. Find it by using the search bar on the organization’s website.

One final note: I encourage your vigilance in watching for indications in your husband that dialysis is becoming a necessary, lifesaving measure. See the resources at kidney.org/patients/peers/dialysis. I wish you both well.

DEAR DR. BLONZ: My question is about caffeine. Can it be diluted? If I drink a soda straight from the can, will it contain more caffeine than if I pour it over ice? Is there the same amount of caffeine in a 12-ounce cup of soda from a fountain as in a 12-ounce can? -- A.Q.

DEAR A.Q.: The two concepts involved are amount and concentration. Our sensation of taste relies on concentration, so a sip of saltwater from a container where one teaspoon of salt was dissolved in a cup of water will be perceived as saltier than a sip where a teaspoon of salt was dissolved in a quart of water. But if the entire cup or quart were consumed, the body would be receiving the same amount of salt -- and the 2,325 mg of sodium it contains. (Yep, that’s how much sodium is in a teaspoon of salt.)

Similar to sodium, the effect of caffeine is based on the dose, not the concentration. There will be comparable amounts of caffeine whether or not the drink was diluted with ice. (Soda fountains mix flavored syrups with a common supply of carbonated water. For the sake of comparison, it must be assumed that the concentration of ingredients and proportions in a fountain soda are similar to those found in the can.)

Send questions to: “On Nutrition,” Ed Blonz, c/o Andrews McMeel Syndication, 1130 Walnut St., Kansas City, MO, 64106. Send email inquiries to questions@blonz.com. Due to the volume of mail, personal replies cannot be provided.

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