|Image 1: Could this be made of obes vegan |
salmon? (img from littlesteps.eu)
Note: Salmon is explicitly mentioned in the "sample one-day menu" scientists at Colorado State developed according to the USDA dietary guidelines (Dietary Guidelines for Americans), so don't tell me you are not supposed to eat Norwegian fish, anyway, because you, my American friends, are supposed to have Grilled salmon, steamed broccoli, barley pilaf, low-fat milk and cake with fresh berries for dinner ;-)Bente E. Torstensen and his (her?) collegues from the National Institute of Nutrition and Seafood Research and the Skretting Aquaculture Research Centre in Norway conducted an interesting experiment (Torstensen. 2011). For about a year, the researchers fed 6,000 smolt of Atlantic salmon (mean weight 355g) which had previously been randomly assigned to one out of three experimental + one control groups with diets containing...
- maximal amounts of fish meal and fish oil (Control)
- the "safe maximum replacement" of both fish meal and fish oil with plant meal (80% plant protein) and vegetable oil (70% vegetable oil) (80PP70VO)
- half the maximum replacement with plant meal (40%) and maximal replacement with vegetable oil (70%) (40PP70VO)
- maximum replacement with plant protein (80%) and half of the maximal replacement with vegetable oil (35%) (80PP35VO)
Maximum dietary VO [vegetable oil] and PP [plant protein replacements] increased visceral lipid stores, liver TAG, and plasma VLDL and TAG concentrations. Increased plasma TAG correlated with an increased expression of apoB100, indicating increased VLDL assembly in the liver of ﬁsh fed the high-plant protein- and VO-based diet.Veganism, it turns out, ain't the preferable diet for salmon. Depending on which end of the dietary spectrum you belong to - the carnivorous hunter or the vegan gatherer - you will probably now be asking yourselves one of the following questions:
- Hunter: "What does that have to do with me? I always knew plant proteins and oils are bad for you!"
- Gatherer: "What does that have to do with me? I don't eat salmon and the results from a 'fish-model' certainly won't apply to human beings!"
|Figure 1: Relative changes in the fatty acid profile compared to "real", i.e. fish-fed, salmon after 1 year on vegetable oil and protein (data calculated based on Torstensen. 2011)|