Hvorfor det er uansvarligt at fraråde mælkeindtag

[ptpoul]

Afledt af tråden om mælkeallergi.

Der er mange myter om hvad mælk er skadeligt og ikke skadeligt over for. Det er et modefænomen at selvdiagnosticere sig selv med laktoseintolerans. Dette studie viser at piger med selvdiagnosticeret laktoseintolerans indtog mindre kalk igennem kosten end ikke selvdiagnosticerede. Derudover havde de målbart mindre tæt kalkindhold i rygsøjlen.

http://www.ncbi.nlm.nih.gov/pubmed/1776650...Pubmed_RVDocSum

OBJECTIVE: The purpose of this study was to determine associations among lactose maldigestion status, perceived milk intolerance, dietary calcium intake, and bone mineral content in early adolescent girls. METHODS: Subjects were 291 girls who participated in a substudy of the multiple-site project Adequate Calcium Today. Lactose maldigestion status was determined with hydrogen breath testing, and questionnaires were used to assess perceived milk intolerance. Dietary calcium intake was estimated from a semiquantitative food frequency questionnaire. Anthropometric and dual-energy x-ray absorptiometric measurements (total body, spine L2-L4, total hip, and hip femoral neck) were standardized across sites. RESULTS: Of the 230 girls who completed breath hydrogen testing, 65 were Asian, 76 were Hispanic, and 89 were non-Hispanic white. A total of 100 girls experienced increases in breath hydrogen levels of >20 ppm and were classified as lactose maldigesters. Of the 246 participants who completed useable perceived milk intolerance questionnaires, 47 considered themselves to be milk intolerant. Of the 47 girls self-reporting perceived milk intolerance, 40 completed breath hydrogen testing and 22 were not maldigesters. Girls with perceived milk intolerance consumed an average of 212 mg of total food calcium per day less than girls without perceived milk intolerance. Spinal bone mineral content was significantly lower in the girls with perceived milk intolerance, compared with the girls without perceived milk intolerance. When girls with lactose maldigestion were compared with girls without lactose maldigestion, there were no significant differences in calcium intake or bone measures. CONCLUSIONS: These results suggest that, starting as early as 10 years of age, self-imposed restriction of dairy foods because of perceived milk intolerance is associated with lower spinal bone mineral content values. The long-term influence of these behaviors may contribute to later risk for osteoporosis.

PMID: 17766507 [PubMed - indexed for MEDLINE]

Knogleskørhed er en hyppigt forekommende og alvorlig sygdom.

Fra et stide kan man se hvor gode folk er til at vurdere om de er laktoseintolerante.

http://www.ncbi.nlm.nih.gov/pubmed/9853544...Pubmed_RVDocSum

Lactose intolerance and self-reported milk intolerance: relationship with lactose maldigestion and nutrient intake. Lactase Deficiency Study Group.

Carroccio A, Montalto G, Cavera G, Notarbatolo A.

Istituto di Medicina Interna, Università di Palermo, Italy.

BACKGROUND: The relationship between lactose-maldigestion, self-reported milk intolerance and gastrointestinal symptoms has not been clearly defined. OBJECTIVES: To evaluate: a) the prevalence of lactose maldigestion and lactose intolerance in a sample of the general population taken from a rural center; B) the frequency of self-reported milk-intolerance and its correlation with lactose-maldigestion; c) the influence of lactose maldigestion, lactose intolerance and self-reported milk intolerance on dietary habits and consumption of total calories, protein, and calcium. SUBJECTS: We studied a randomized sample of the general population in a small center in Sicily. 323 subjects (150 males, 173 females), age range 5 to 85 years (median 44) were included and underwent H2-breath test after 25 g lactose load. The preliminary dietary investigation spanned 7 consecutive days using a printed dietary form and was under the daily control of a team of dietitians. METHODS: The dietary investigation was completed in the first part of the study and the results were analyzed for nutrient composition by a computerized database. The subjects were then divided into self-reported milk-intolerants and self-reported milk-tolerants and they underwent H2 breath testing; subjects with H2 concentration >20 ppm over the baseline concentration were considered maldigesters and those with one or more symptoms were classified as intolerants. RESULTS: 104/323 subjects (32.2%) were lactose maldigesters but tolerants, while 13/323 (4%) were lactose maldigesters and intolerants. In each age-class group (pediatric, adult, and elderly subjects) only the lactose maldigester and intolerant subjects showed differences in nutrient intake with a significantly lower daily consumption of milk and a lower calcium intake. 49/323 subjects were self-reported milk-intolerants; of these, 26 (53%) were lactose maldigesters but tolerants, 18 (37%) were lactose digesters and tolerants and only 5 (10%) were lactose maldigesters and intolerants. In the whole group of self-reported milk-intolerants, dietary milk consumption was significantly reduced and calcium intake was lower than in all the other subjects studied (320 mg/day vs. 585 mg/day, p<0.05). CONCLUSIONS: In studies of the general population, the frequency of lactose intolerance is much lower than that of lactose maldigestion. Gastrointestinal symptoms after lactose load in self-reported milk-intolerants are found in only a very low number of these subjects. Furthermore, in these subjects we observed an unnecessary reduction in milk consumption and an insufficient dietary calcium intake.

PMID: 9853544 [PubMed - indexed for MEDLINE]

I dette studie var 37% af de selv rapporterede mælke intolerante ikke mælke intolerante!

Et andet studie:

A comparison of symptoms after the consumption of milk or lactose-hydrolyzed milk by people with self-reported severe lactose intolerance.

A comparison of symptoms after the consumption of milk or lactose-hydrolyzed milk by people with self-reported severe lactose intolerance.

Suarez FL, Savaiano DA, Levitt MD.

Department of Food Science and Nutrition, University of Minnesota, St. Paul, USA.

BACKGROUND. Ingestion of a large dose of the milk sugar lactose--for example, the 50-g load in 1 liter of milk--causes symptoms such as abdominal pain, diarrhea, bloating, and flatulence in the majority of people with lactose malabsorption. It is uncertain whether the ingestion of more common doses of lactose, such as the amount in 240 ml (8 oz) of milk, causes symptoms. Some people insist that even smaller quantities of milk, such as the amount used with cereal or coffee, cause severe gastrointestinal distress. METHODS. In a randomized, double-blind, crossover trial, we evaluated gastrointestinal symptoms in 30 people (mean age, 29.4 years; range, 18 to 50) who reported severe lactose intolerance and said they consistently had symptoms after ingesting less than 240 ml of milk. The ability to digest lactose was assessed by measuring the subjects' end-alveolar hydrogen concentration after they ingested 15 g of lactose in 250 ml of water. Subjects then received either 240 ml of lactose-hydrolyzed milk containing 2 percent fat or 240 ml of milk containing 2 percent fat and sweetened with aspartame to approximate the taste of lactose-hydrolyzed milk; each type of milk was administered daily with breakfast for a one-week period. Using a standardized scale, subjects rated the occurrence and severity of bloating, abdominal pain, diarrhea, and flatus and recorded each passage of flatus. RESULTS. Twenty-one participants were classified as having lactose malabsorption and nine as being able to absorb lactose. During the study periods, gastrointestinal symptoms were minimal (mean symptom-severity scores for bloating, abdominal pain, diarrhea, and flatus between 0.1 and 1.2 [1 indicated trivial symptoms; and 2, mild symptoms]). When the periods were compared, there were no statistically significant differences in the severity of these four gastrointestinal symptoms. For the lactose-malabsorption group, the mean (+/- SEM) difference in episodes of flatus per day was 2.5 +/- 1.1 (95 percent confidence interval, 0.2 to 4.8). Daily dietary records indicated a high degree of compliance, with no additional sources of lactose reported. CONCLUSIONS. People who identify themselves as severely lactose-intolerant may mistakenly attribute a variety of abdominal symptoms to lactose intolerance. When lactose intake is limited to the equivalent of 240 ml of milk or less a day, symptoms are likely to be negligible and the use of lactose-digestive aids unnecessary.

PMID: 7776987 [PubMed - indexed for MEDLINE]

Næsten en trediedel af dem der rapporterede at de havde svær laktoseintolerans havde ikke laktoseintolerans.

Der er sikkert andre der kan gøre det bedre end jeg (kunne være fedt hvis nogen af diætisterne gad at blande sig) men disse studier understøtter kun min teori om at mange af dem der tror de er mælkeallergikere eller laktoseintolerante bilder sig selv noget ind. Det er uheldigt for hvis ikke de er disciplinerede med kalk kosttilskud er der stor risiko for at de ikke får kalk nok og risikoen for osteoperose forstærkes kraftigt!

Ville ønske de alternative viste ansvarlighed og lod være med at ødelægge deres omgivelsers helbred med farlige ikke undebyggede kostråd.

[Kenneth..]

ptpoul, jeg har lige skrevet i et andet indlæg.. (Ville ønske de alternative viste ansvarlighed og lod være med at ødelægge deres omgivelsers helbred med farlige ikke undebyggede kostråd. )

HUSK på at man kan få kalk gennem andet end mælk (feks vand...). Prøv at dykke ned i emnet (hvorfor mælk er skadeligt ).. Det kan være at du bliver lidt klogere??

[incognito]

ptpoul, jeg har lige skrevet i et andet indlæg.. (Ville ønske de alternative viste ansvarlighed og lod være med at ødelægge deres omgivelsers helbred med farlige ikke undebyggede kostråd. )

HUSK på at man kan få kalk gennem andet end mælk (feks vand...). Prøv at dykke ned i emnet (hvorfor mælk er skadeligt ).. Det kan være at du bliver lidt klogere??

og hvis du dykkede lidt længere ned i emnet, ville du måske finde ud af at der er forskel på biotilgængeligheden af kalk fra forskellige kilder... Drop attittuden og hiv referencerne frem, hvis du gerne vil tages seriøst...

[Kenneth..]

Nu nævnte jeg ikke noget om tilgængeligheden!

Men hvis man bor i Skanderborg burde man være dækket ind (hvad angår vand)..

[Powerbaby]

Jeg lever fint med mit sojamælk tilsat calcium og mit calcium tilskud.

Jeg ved hvad jeg skal have hver dag og jeg synes ikke man skal undervurdere folk.

Så vidt jeg ved er calcium fra komælk ikke bedre end så meget andet....

[incognito]

Jeg lever fint med mit sojamælk tilsat calcium og mit calcium tilskud.

Jeg ved hvad jeg skal have hver dag og jeg synes ikke man skal undervurdere folk.

Så vidt jeg ved er calcium fra komælk ikke bedre end så meget andet....

hør nu her.. manden påstår at det generelt er skadeligt at drikke komælk... Dét er problemet, fordi det er forkert, eller der ihvertfald ikke er belæg for at sige det... Så er det for så vidt ligegyldigt hvordan du har det med sojamælk, hvis jeg må være så fri.

[ptpoul]

Problemet er at hvis man skaber denne frygt i befolkningen for at indtage mælk vil indtaget af kalk falde og knogletætheden vil falde.

Prøv at læse de abstracts jeg referer til

Vi lever i et samfund hvor kærgården gjorde at smørindtaget steg eksplosivt. Hvorfor? Fordi det blev nemmere at komme smør på brødet når det ikke længere var hårdt.

Tror i så selv på at den brede befolkning kan finde ud af at erstatte kalken i mælk med en kalktablet?

At fraråde mælkeindtag på tyndt aller intet grundlag fører til knogleskørhed hos den brede befolkning. Uansvarligt...

[tann3r]

Nu er laktoseintolerance jo ikke "farligt". Jeg kan ikke forstå, at det at være laktoseintolerant er blevet kædet sammen med at "få det dårligt af komælk". Jeg synes også, at det er også farligt, at påstå, at man ikke kan tåle komælk for så bare at droppe komælken, uden at undersøge hvad det er ved mælken man ikke kan tåle.

Udover det, kan man sagtens få komælk uden laktose(heldigvis!). Personligt, synes jeg at komælk smager meget bedre end alle andre alternativer til komælk.

Edited April 4, 2008 by tann3r