|Would this work w/ this foam, as well?|
The scientists who work for Anglo–Dutch multinational consumer goods company Univlever conducted two randomized cross-over studies.
In study one, the 24 volunteers the scientists had recruited for their trials consumed a full portion liquid (325 ml, 190 kcal) or aerated (1,000 ml, 190 kcal) of a commercial Slim.Fast drink at 0 min, or half portions of liquid (162 ml, 95 kcal) or aerated (500 ml, 95 kcal) of the same well-known diet beverage at 0 and 120 min.
Here is a guide that explains how you can create your own food foams. All you need is a compressed Nitrous Oxide dispenser and NO2 chargers. Well, and the ingredients you want to have in your foams, obviously.
Is it the texture that makes the difference? Or is it just about volume? Or even the NO2?
As you can see in (see Figure 2) this was not the case. The absence of significant effects suggest that the satiety effects is not simply attributable to any remarkable effect of the gas (N2O) that is added to the drink to create the foamy texture. That's in line with what the authors write about previous studies, ...
Accordingly, the satiety effects may, as Melnikov et al. suggest, be attributable to the effect of aeration on gastric handling of the ingesta, which is related to an increased separation of nutrients in the stomach. Alternatively, the results could also be simply explained by the effect of the foam itself on gastric volume. If the latter was the case, results of previous studies would suggest that "the consumption of 1,000 or 500 ml foam would be sufficient to reduce eating motivations" (Melnikov. 2014).
"[...which] have shown that entrapped air can effect an acute enhancement of satiety following single preloads of milkshakes (Rolls. 2000) or ready-to-eat cereals (Irvine. 2007), but effects are small and the duration of the satiety effects was not shown.
Figure 2: Hunger ratings in study 2 - no effect of NO2 alone vs. CO2 (Melnikov. 2014)
A small effect of carbonation on satiety has also been demonstrated over short periods and mainly seen with much higher gas volumes than used here (Moorhead. 2008)." (Melnikov. 2014)
- Irvine, Paul, Barbara Livingstone, and Robert Welch. "Bulk density of ready-to-eat cereals affects satiety and subsequent intakes in young women." International Journal Of Obesity. Vol. 31. Macmillan Building, 4 Crinan St, London N1 9xw, England: Nature Publishing Group, 2007.
- Martin, Corby K., et al. "Slower eating rate reduces the food intake of men, but not women: implications for behavioral weight control." Behaviour research and therapy 45.10 (2007): 2349-2359.
- Melnikov, Sergey M., et al. "Sustained hunger suppression from stable liquid food foams." Obesity (2014).
- Moorhead SA, Livingstone M, Dunne A, Welch RW. "The level of carbonation of a
sugar-sweetened beverage preload affects satiety and short-term energy and food
intakes." Br J Nutr 99 (2008):1362-1369.
- Rolls, Barbara J., Elizabeth A. Bell, and Bethany A. Waugh. "Increasing the volume of a food by incorporating air affects satiety in men." The American journal of clinical nutrition 72.2 (2000): 361-368.