Tag Archives: CSPI

Food Additives You Must Avoid

The Center for Science in the Public Interest is a research and non-profit group that is an advocate for nutrition and food safety.  They recently published a list of food additives to avoid and ones that are safe. You know, those ingredients that you can’t pronounce on the back of every packaged food label you pick up and read?  Below I have selected some of the most offensive additives to avoid at all costs.  You may read the full article from CSPI here.

Food Additives to Avoid

ACESULFAME-K

Artificial sweetener: Baked goods, chewing gum, gelatin desserts, diet soda, Sunette.

This artificial sweetener, manufactured by Hoechst, a giant German chemical company, is widely used around the world. It is about 200 times sweeter than sugar. In the United States, for several years acesulfame-K (the K is the chemical symbol for potassium) was permitted only in such foods as sugar-free baked goods, chewing gum, and gelatin desserts. In July 1998, the FDA allowed this chemical to be used in soft drinks, thereby greatly increasing consumer exposure. It is often used together with sucralose.

The safety tests of acesulfame-K were conducted in the 1970s and were of mediocre quality. Key rat tests were afflicted by disease in the animal colonies; a mouse study was several months too brief and did not expose animals during gestation. Two rat studies suggest that the additive might cause cancer. It was for those reasons that in 1996 the Center for Science in the Public Interest urged the FDA to require better testing before permitting acesulfame-K in soft drinks. In addition, large doses of acetoacetamide, a breakdown product, have been shown to affect the thyroid in rats, rabbits, and dogs. Hopefully, the small amounts in food are not harmful.

ASPARTAME

Artificial sweetener: “Diet” foods, including soft drinks, drink mixes, gelatin desserts, low-calorie frozen desserts, packets.

Aspartame (Equal, NutraSweet), a chemical combination of two amino acids and methanol, was initially thought to be the perfect artificial sweetener, but it might cause cancer or neurological problems such as dizziness or hallucinations.

A 1970s study suggested that aspartame caused brain tumors in rats. However, the Food and Drug Administration persuaded an independent review panel to reverse its conclusion that aspartame was unsafe. The California Environmental Protection Agency and others have urged that independent scientists conduct new animal studies to resolve the cancer question. In 2005, researchers at the Ramazzini Foundation in Bologna, Italy, conducted the first such study. It indicated that rats first exposed to aspartame at eight weeks of age caused lymphomas and leukemias in females. However, the European Food Safety Authority reviewed the study and concluded that the tumors probably occurred just by chance.

In 2007, the same Italian researchers published a follow-up study that began exposing rats to aspartame in utero. This study found that aspartame caused leukemias/lymphomas and mammary (breast) cancer. It is likely that the new studies found problems that earlier company-sponsored studies did not because the Italian researchers monitored the rats for three years instead of two. The Italian tests remain controversial, with the industry contending that they were flawed in several ways and with the FDA stating its scientists couldn’t evaluate the studies because the researchers refused to provide their original data.

In a 2006 study, U.S. National Cancer Institute researchers studied a large number of adults 50 to 69 years of age over a five-year period. There was no evidence that aspartame posed any risk. However, the study was limited in three major regards: It did not involve truly elderly people (the rat studies monitored the rats until they died a natural death), the subjects had not consumed aspartame as children, and it was not a controlled study (the subjects provided only a rough estimate of their aspartame consumption, and people who consumed aspartame might have had other dietary or lifestyle differences that obscured the chemical’s effects).

The bottom line is that lifelong consumption of aspartame probably increases the risk of cancer. People—especially young children—should not consume foods and beverages sweetened with aspartame, should switch to products sweetened with SUCRALOSE (Splenda), or should avoid all artificially sweetened foods. Two other artificial sweeteners, SACCHARIN and ACESULFAME-K, have also been linked to a risk of cancer.

BUTYLATED HYDROXYANISOLE (BHA)

Antioxidant: Cereals, chewing gum, potato chips, vegetable oil.

BHA retards rancidity in fats, oils, and oil-containing foods. While some studies indicate it is safe, other studies demonstrate that it causes cancer in rats, mice, and hamsters. Those cancers are controversial because they occur in the forestomach, an organ that humans do not have. However, a chemical that causes cancer in at least one organ in three different species indicates that it might be carcinogenic in humans. That is why the U.S. Department of Health and Human Services considers BHA to be “reasonably anticipated to be a human carcinogen.” Nevertheless, the Food and Drug Administration still permits BHA to be used in foods. This synthetic chemical can be replaced by safer chemicals (e.g., vitamin E), safer processes (e.g., packing foods under nitrogen instead of air), or can simply be left out (many brands of oily foods, such as potato chips, don’t use any antioxidant).

OLESTRA (Olean)

Fat substitute: Lay’s Light Chips, Pringles Light chips.

Olestra is Procter & Gamble’s synthetic fat that is not absorbed as it passes through the digestive system, so it has no calories. Procter & Gamble suggests that replacing regular fat with olestra will help people lose weight and lower the risk of heart disease.

Olestra can cause diarrhea and loose stools, abdominal cramps, flatulence, and other adverse effects. Those symptoms are sometimes severe.
Olestra reduces the body’s ability to absorb fat-soluble carotenoids (such as alpha and beta-carotene, lycopene, lutein, and canthaxanthin) from fruits and vegetables, but an occasional serving wouldn’t be a problem. Those nutrients are thought by many experts to reduce the risk of cancer and heart disease. Olestra enables manufacturers to offer greasy-feeling low-fat snacks, but consumers would be better off with baked snacks, which are safe and just as low in calories. Products made with olestra should not be called “fat free,” because they contain substantial amounts of indigestible fat.

PARTIALLY HYDROGENATED VEGETABLE OIL, HYDROGENATED VEGETABLE OIL (Trans fat)

Fat, oil, shortening: Stick margarine, crackers, fried restaurant foods, baked goods, icing, microwave popcorn.

Vegetable oil, usually a liquid, can be made into a semi-solid shortening by reacting it with hydrogen. Partial hydrogenation reduces the levels of polyunsaturated oils – and also creates trans fats, which promote heart disease. A committee of the U.S. Food and Drug Administration (FDA) concluded in 2004 that on a gram-for-gram basis, trans fat is even more harmful than saturated fat. Ideally, food manufacturers would replace hydrogenated shortening with less-harmful ingredients. The Institute of Medicine has advised consumers to consume as little trans fat as possible, ideally less than about 2 grams a day (that much might come from naturally occurring trans fat in beef and dairy products). Harvard School of Public Health researchers estimate that trans fat had been causing about 50,000 premature heart attack deaths annually, making partially hydrogenated oil one of the most harmful ingredients in the food supply (see discussion of salt below).

Beginning in 2006, Nutrition Facts labels have had to list the amount of trans fat in a serving. That spurred many companies, including Frito-Lay, Kraft, ConAgra, and others, to replace most or all of the partially hydrogenated oil in almost all their products. Usually the substitutes are healthier and the total of saturated plus trans fat is no higher than it was. Foods labeled “0g trans fat” are permitted to contain 0.5g per serving, while “no trans fat” means none at all. Consumers need to read labels carefully: foods labeled “0g trans” or “no trans” may still have large amounts of saturated fat.

Restaurants, which do not provide nutrition information, have been slower to change, but the pace of change has picked up. They use partially hydrogenated oil for frying chicken, potatoes, and fish, as well as in biscuits and other baked goods. McDonald’s, Wendy’s, KFC, Taco Bell, Ruby Tuesday, and Red Lobster are some of the large chains that have largely eliminated trans fat or soon will. Most large chains and many smaller independent restaurants continue to fry in partially hydrogenated oil and their French fries, fried chicken, fried fish, and pot pies contain substantial amounts of trans fat. Fortunately, the use of partially hydrogenated oil dropped by 50 percent from around 2000 to 2007.

In Denmark, the government has virtually banned partially hydrogenated oil. In 2004, the Center for Science in the Public Interest petitioned the FDA to immediately require restaurants to disclose when they use partially hydrogenated oil and to begin the process of eliminating partially hydrogenated oil from the entire food supply. While the FDA rejected the idea of requiring restaurants to disclose the presence of trans fat, New York City, Philadelphia, Boston, and other jurisdictions have set tight limits on the trans-fat content of restaurant foods. Meanwhile, the FDA is continuing to consider CSPI’s petition to revoke the legal status of partially hydrogenated oil (the FDA considers that oil to be “generally recognized as safe,” even though it and everyone else considers it to be “generally recognized as dangerous.”

Fully hydrogenated vegetable oil does not have any trans fat, but it also does not have any polyunsaturated oils. It is sometimes mixed (physically or chemically) with polyunsaturated liquid soybean oil to create trans-free shortening. When it is chemically combined with liquid oil, the ingredient is called inter-esterified vegetable oil. Meanwhile, oil processors are trying to improve the hydrogenation process so that less trans fat forms.

POTASSIUM BROMATE

Flour improver: White flour, bread and rolls.

This additive has long been used to increase the volume of bread and to produce bread with a fine crumb (the not-crust part of bread) structure. Most bromate rapidly breaks down to form innocuous bromide. However, bromate itself causes cancer in animals. The tiny amounts of bromate that may remain in bread pose a small risk to consumers. Bromate has been banned virtually worldwide except in Japan and the United States. It is rarely used in California because a cancer warning might be required on the label. In 1999, the Center for Science in the Public Interest petitioned the FDA to ban bromate. Since then, numerous millers and bakers have stopped using bromate.

SACCHARIN

Artificial sweetener: Diet, no-sugar-added products, soft drinks, sweetener packets.

Saccharin (Sweet ’N Low) is 350 times sweeter than sugar and is used in diet foods or as a tabletop sugar substitute. Many studies on animals have shown that saccharin can cause cancer of the urinary bladder. In other rodent studies, saccharin has caused cancer of the uterus, ovaries, skin, blood vessels, and other organs. Other studies have shown that saccharin increases the potency of other cancer-causing chemicals. And the best epidemiology study (done by the National Cancer Institute) found that the use of artificial sweeteners (saccharin and cyclamate) was associated with a higher incidence of bladder cancer.

In 1977, the FDA proposed that saccharin be banned, because of studies that it causes cancer in animals. However, Congress intervened and permitted it to be used, provided that foods bear a warning notice. It has been replaced in many products by aspartame (NutraSweet). In 1997, the diet-food industry began pressuring the U.S. and Canadian governments and the World Health Organization to take saccharin off their lists of cancer-causing chemicals. The industry acknowledges that saccharin causes bladder cancer in male rats, but argues that those tumors are caused by a mechanism that would not occur in humans. Many public health experts respond by stating that, even if that still-unproved mechanism were correct in male rats, saccharin could cause cancer by additional mechanisms and that, in some studies, saccharin has caused bladder cancer in mice and in female rats and other cancers in both rats and mice.

In May 2000, the U.S. Department of Health and Human Services removed saccharin from its list of cancer-causing chemicals. Later that year, Congress passed a law removing the warning notice that likely will result in increased use in soft drinks and other foods and in a slightly greater incidence of cancer.

SODIUM NITRITE, SODIUM NITRATE

Preservative, coloring, flavoring: Bacon, ham, frankfurters, luncheon meats, smoked fish, corned beef.

Meat processors love sodium nitrite because it stabilizes the red color in cured meat (without nitrite, hot dogs and bacon would look gray) and gives a characteristic flavor. Sodium nitrate is used in dry cured meat, because it slowly breaks down into nitrite. Adding nitrite to food can lead to the formation of small amounts of potent cancer-causing chemicals (nitrosamines), particularly in fried bacon. Nitrite, which also occurs in saliva and forms from nitrate in several vegetables, can undergo the same chemical reaction in the stomach. Companies now add ascorbic acid or erythorbic acid to bacon to inhibit nitrosamine formation, a measure that has greatly reduced the problem. While nitrite and nitrate cause only a small risk, they are still worth avoiding.

Several studies have linked consumption of cured meat and nitrite by children, pregnant women, and adults with various types of cancer. Although those studies have not yet proven that eating nitrite in bacon, sausage, and ham causes cancer in humans, pregnant women would be prudent to avoid those products.

The meat industry justifies its use of nitrite and nitrate by claiming that it prevents the growth of bacteria that cause botulism poisoning. That’s true, but freezing and refrigeration could also do that, and the U.S. Department of Agriculture has developed a safe method using lactic-acid-producing bacteria. The use of nitrite and nitrate has decreased greatly over the decades, because of refrigeration and restrictions on the amounts used. The meat industry could do the public’s health a favor by cutting back even further. Because nitrite is used primarily in fatty, salty foods, consumers have important nutritional reasons for avoiding nitrite-preserved foods.

The list could go on and on, but the above information is great.  I strongly encourage everyone to check out the CSPI website (link at the beginning of the post) and view the entire list because there are additives that sound scary that are actually good for you.  Ascorbic acid (or vitamin C) comes to mind.  My advice for you is to shop around the edges of the grocery store.  There you’ll find meats, fruits, vegetables and nuts.  That’s all you need to eat.  If you consume those foods most frequently and on a regular basis, avoiding the above additives is easy.

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Food Dyes Pose Serious Risk to Children and Adults

All of these foods contain artificial food dyes

Food dyes are an interesting subject.  Health groups have been calling for their removal from the market for years because of links to allergies, hyperactivity in children and cancer.  The food industry uses them for one sole purpose – to make food look more appealing.  That’s it.  We’re not even talking about flavor enhancers here (which have their own set of problems). Food dyes don’t make food taste better and have no nutritional value to them whatsoever.  They are nothing more than chemicals used to make us think our food is going to taste better.

Now the Center for Science in the Public Interest (CSPI) is calling for the removal of several of these dyes.  They say the three most widely used dyes, Red 40, Yellow 5, and Yellow 6, are contaminated with known carcinogens.  They also say that another dye, Red 3, has been known by the government for years to be a carcinogen yet it remains in our food supply.

Let’s take a look at some things that might open your eyes:

  • Every year about 15 million pounds of eight synthetic dyes end up in our food.
  • Per capita consumption of dyes has increased five-fold since 1955.
  • Children consume more dye per unit of body weight than adults and they are much more susceptible to their effects.
  • The FDA did not consider the risk to children when making their ‘acceptable level’ guidelines.
  • Most safety studies conducted on dyes were conducted or commissioned by food dye manufacturers.
  • Most of these studies lasted less than two years so long term affects could not be assessed.
  • The amount of artificial chemical allowed in any given dye is based on usage from 1990 and usage has increased by 50% since then.

The Center for Science in the Public Interest is claiming that the FDA is not upholding the law for the following reasons:

  • Red 3 and Citrus Red 2 should be banned under the Delaney amendment, because they caused cancer in rats (some uses were banned in 1990), as should Red 40, Yellow 5, and Yellow 6, which are tainted with cancer-causing contaminants.
  • Evidence suggests, though does not prove, that Blue 1, Blue 2, Green 3, Red 40, and Yellow 6 cause cancer in animals. There certainly is not “convincing evidence” of safety.
  • Dyed foods should be considered adulterated under the law, because the dyes make a food “appear better or of greater value than it is”—typically by masking the absence of fruit, vegetable, or other more costly ingredient.

Click here for a summary of studies on food dyes

There are 9 dyes currently approved for use in the United States.  Many previous dyes have been banned because they have caused adverse affects in laboratory animals.  In fact, the British government had asked manufactures, as of last December 31st,  to completely phase out use of dyes and the European Union is requiring that every food containing dye come with warnings.  Below is a summary of each dye and its potential problems.  This list is from the CSPI.

  • Blue 1 was not found to be toxic in key rat and mouse studies, but an unpublished study suggested the possibility that Blue 1 caused kidney tumors in mice, and a preliminary in vitro study raised questions about possible effects on nerve cells. Blue 1 may not cause cancer, but confirmatory studies should be conducted. The dye can cause hypersensitivity reactions.
  • Blue 2 cannot be considered safe given the statistically significant incidence of tumors, particularly brain gliomas, in male rats. It should not be used in foods.
  • Citrus Red 2, which is permitted only for coloring the skins of oranges not used for processing, is toxic to rodents at modest levels and caused tumors of the urinary bladder and possibly other organs. The dye poses minimal human risk, because it is only used at minuscule levels and only on orange peels, but it still has no place in the food supply.
  • Green 3 caused significant increases in bladder and testes tumors in male rats. Though the Food and Drug Administration (FDA) considers it safe, this little-used dye must remain suspect until further testing is conducted.
  • Orange B is approved for use only in sausage casings, but has not been used for many years. Limited industry testing did not reveal any problems.
  • Red 3 was recognized in 1990 by the FDA as a thyroid carcinogen in animals and is banned in cosmetics and externally applied drugs. All uses of Red 3 lakes (combinations of dyes and salts that are insoluble and used in low-moisture foods) are also banned. However, the FDA still permits Red 3 in ingested drugs and foods, with about 200,000 pounds of the dye being used annually. The FDA needs to revoke that approval.
  • Red 40, the most-widely used dye, may accelerate the appearance of immune-system tumors in mice. The dye causes hypersensitivity (allergy-like) reactions in a small number of consumers and might trigger hyperactivity in children. Considering the safety questions and its non-essentiality, Red 40 should be excluded from foods unless and until new tests clearly demonstrate its safety.
  • Yellow 5 was not carcinogenic in rats, but was not adequately tested in mice. It may be contaminated with several cancer-causing chemicals. In addition, Yellow 5 causes sometimes-severe hypersensitivity reactions in a small number of people and might trigger hyperactivity and other behavioral effects in children. Posing some risks, while serving no nutritional or safety purpose, Yellow 5 should not be allowed in foods.
  • Yellow 6 caused adrenal tumors in animals, though that is disputed by industry and the FDA. It may be contaminated with cancer-causing chemicals and occasionally causes severe hypersensitivity reactions. Yellow 6 adds an unnecessary risk to the food supply.

I always encourage my patients to eat as naturally as possible and this is one of the main reasons.  These chemicals, basically derived from petroleum, are clearly not as safe as the food manufacturers would like you to think they are.  While not all of these dyes pose a serious threat, why risk it?  You can bet that if you buy a packaged food and it is brilliantly colored, it has one or more of these dyes in it.  That is also problematic as these dyes have been studied alone and not it combination with one another.  No one knows what the safety of these dyes are when consumed with other dyes.

Natural Alternatives

There are options for food coloring out there.  Many natural colors exist that work just as well as the synthetics and are known to be safe.  I’ve listed some below for your reference.

  • Caramel coloring made from caramelized sugar, used in cola products and also in cosmetics.
  • Annatto a reddish-orange dye made from the seed of the Achiote. (Some are allergic to this one.)
  • A green dye made from chlorella algae.
  • Cochineal a red dye derived from the cochineal insect, Dactylopius coccus.
  • Betanin extracted from beets.
  • Turmeric (curcuminoids)
  • Saffron (carotenoids)
  • Paprika
  • Elderberry juice
  • Pandan Pandanus amaryllifolius, a green food coloring
  • Butterfly pea Clitoria ternatea, a blue food dye

I see many children in my practice that struggle with attention and hyperactivity.  Those symptoms are often alleviated by removing all artificial sweeteners and dyes from the diets of these children.  In terms of overall health, stick on the edges of the grocery store.  Skip the middle aisle where all of the processed junk is kept.  That is what will contain the dyes you want to avoid.

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