Another strength of this study is that all diets were to be
consumed ad libitum - they could eat as much as they wanted, so it more closely reflected what would happen in real life, outside the setting of a clinical study.
Individuals are then asked to
consume an ad libitum or euenergetic intake on non-restricted days.
LCKD was instructed to
consume an ad libitum diet and restrict carbohydrate intake to less than 50 grams per day (< 10 % of total energy) and CON maintained usual dietary intake.
Not exact matches
In recently published studies of
ad libitum, low - carbohydrate diets, experimental and control subjects
consumed diets in which neither fat content nor protein content were held constant between groups (5 — 7).
Sufficient food was provided on this
ad libitum high - protein diet to allow subjects to
consume up to 15 % more than their weight - maintaining daily caloric intake.
Anson et al. showed that mice on alternate - day fasting regimen who
consume the same amount of food in a 48 - hour period as mice fed
ad libitum, decreased glucose and insulin concentrations to a similar degree as did mice on daily calorie restriction despite maintained energy intake and body weight (17).
However, C57BL / 6 mice maintained on the same alternate - day fasting regimen
consume similar food quantities in a 48 - hour time period and maintain body weights similar to that of mice fed
ad libitum (17).
It is concluded that application of the glycemic index in isolation to judge the role of white vegetables in the diet and, specifically in the case of potato as
consumed in
ad libitum meals, has led to premature and possibly counterproductive dietary guidance.»
Overall, men expended more energy (2,575.6 ± 64.6 kcal / d men versus 2,045.2 ± 56.6 kcal / d women),
consumed more calories (3,850.8 ± 118.9 versus 2,277.4 ± 92.4 kcal / d), were in greater positive energy balance (1,275.2 ± 80.2 versus 232.2 ± 74.2 kcal / d), and gained more weight (0.95 ± 0.14 versus 0.13 ± 0.16 kg) than women during
ad libitum food availability regardless of sleep opportunity (all sex differences P < 0.0015).
Participants
consumed more calories than needed to maintain weight when food was available
ad libitum and 24 - h food intake was ∼ 6 % greater during the 5 - h than 9 - h condition (P < 0.05; Fig. 2C).
For the
ad libitum feeding days, participants were given a monetary allowance ($ 25) to purchase foods and beverages of their choice to
consume in the lab on days 5 and 6.