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Iodine intake and iodine deficiency in vegans as assessed by the duplicate-portion technique and urinary iodine excretion
| Content Provider | Scilit |
|---|---|
| Author | Lightowler, Helen J. Davies, G. Jill |
| Copyright Year | 1998 |
| Description | I intake and I deficiency were investigated in thirty vegans (eleven males and nineteen females) consuming their habitual diet. I intake was estimated using the chemical analysis of 4 d weighed duplicate diet collections. The probability of I-deficiency disorders (IDD) was judged from the measurement of urinary I excretion in 24 h urine specimens during the 4 d. There was wide variation in I intake. Mean I intake in males was lower than the reference nutrient intake (RNI; Department of Health, 1991) and mean intake in females was above the RNI, although 36% males and 63% females had I intakes below the lower RNI. Mean I intake in subjects who consumed seaweed (n 3) was in excess of the RNI, and approached the provisional maximum tolerable daily intake (World Health Organization/Food and Agriculture Organization Joint Expert Committee on Food Additives, 1989). The probability of IDD in the group investigated was moderate to severe: three of five subgroups were classified as moderate and two subgroups were classified as severe IDD possibility. The findings highlight that vegans are an ‘at risk’ group for I deficiency. The I status of vegans and the subclinical effects of low I intakes and infrequent high I intakes on thyroid function in this group should be further studied. Our work has also raised the question of adequate I intakes in groups where cow's milk is not consumed, and has exposed a need for more research in this area. |
| Related Links | https://www.cambridge.org/core/services/aop-cambridge-core/content/view/546E13105E5CFF1D9A01C116658B09C4/S0007114598001627a.pdf/div-class-title-iodine-intake-and-iodine-deficiency-in-vegans-as-assessed-by-the-duplicate-portion-technique-and-urinary-iodine-excretion-div.pdf |
| Ending Page | 535 |
| Page Count | 7 |
| Starting Page | 529 |
| ISSN | 00071145 |
| e-ISSN | 14752662 |
| DOI | 10.1017/s0007114598001627 |
| Journal | British Journal of Nutrition |
| Issue Number | 6 |
| Volume Number | 80 |
| Language | English |
| Publisher | Cambridge University Press (CUP) |
| Publisher Date | 1998-12-01 |
| Access Restriction | Open |
| Subject Keyword | British Journal of Nutrition |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nutrition and Dietetics Medicine |
