The overall analysis of fat intake in the ELANS countries showed that 76.2% of the subjects consumed fat within normal ranges (20–35% of the total caloric value (TCV)). 18.9% consumed more fat than the recommended amounts and 4.9% were below the recommended intake.
A detailed analysis of the intake for each fatty acid revealed that regardless of country, age, sex, or socioeconomic status, the most consumed saturated fatty acids are the long-chain, palmitic (16:0), and stearic (18:0), followed by medium-chain lauric acid (12:0), and short chain butyric acid (4:0).
3.1. Average Daily Fat Intake by Sex and Age
The analysis revealed that, on average, women had a significantly higher intake of all types of fat compared to men (
Table 2). Notably, the 95% confidence intervals for the average intake of TFI, as well SFA and PUFA, fell within the recommended ranges for both men and women (20–35% for TFI, 6–11% for PUFA, and 10% for SFA). However, the average intake of MUFA was below the recommended range for both sexes (15–20%), while the intake of TRANS exceeded the recommended levels (<1%).
The ANOVA test indicates that no significant differences are observed in the average consumption of MUFA type fats (
p = 0.998), SAT (
p = 0.205), and TRANS (
p = 0.592), by age groups. However, it can be seen that the energy from PUFA shows a significant decrease as age increases (
p < 0.001), finding that the Tukey test of multiple comparisons indicates a marked decrease between the age groups; the decrease is more advanced for ages 20–34 years vs. 35–49 years (
p = 0.02) and 35–49 years vs. 50–65 years (
p = 0.04). Additionally, for all age groups, the 95% confidence intervals for the average percentage of energy provided by TFI, SFA, and PUFA indicate that their behavior is within the range of recommendations, while MUFA is below the recommendations, and that of TRANS fats is above the range of recommendations (
Table 3).
3.2. Average Daily Fat Intake by Socioeconomic Level
Regarding fat consumption by socioeconomic status (SES), the ANOVA test indicates that the average of TFI and all of its components is significantly differentiated by social classes (p < 0.05), with the exception of PUFA (p = 0.270), which does not differ between social classes. Tukey’s ad hoc tests show that the differences in the TFI, MUFA, SAT, and TRANS intakes between social classes are essentially determined by the fact that the middle class has a significantly higher intake when compared to the other classes: TFImedium vs. TFIhigh (p < 0.001), TFImedium vs. TFIlow (p < 0.001); MUFAmedium vs. MUFAhigh (p < 0.001), MUFAmedium vs. MUFAlow (p < 0.001); SATmedium vs. SAThigh (p < 0.001), SATmedium vs. SATlow (p < 0.001); TRANSmedium vs. TRANShigh (p = 0.021), and TRANSmedium vs. TRANSlow (p < 0.001).
Additionally for all social classes, the 95% confidence intervals for the average intake of TFI, SAT, and PUFA indicate that their behavior is within the range of recommendations while the consumption of MUFA fats is below the recommendations. TRANS fats is above the range of the recommendations (
Table 4).
3.3. Average Intake by Country
As shown in
Figure 1, the majority of individuals (64.2% to 84.7%) meet the recommended intake levels, with Costa Rica standing out as the country where the population most adheres to the guidelines followed by Ecuador and Argentina as the countries with the lowest compliance. Notably, Argentina also has the highest percentage of individuals exceeding the recommended intake, followed by Colombia, Venezuela, and Brazil. In contrast, Peru has the highest percentage of individuals who tend to follow a low-fat diet (<20% TCV) (
Figure 1).
Regarding PUFA intake, there is a notable pattern of high omega-6 fatty acid consumption and low omega-3 intake, resulting in an overall ω6:ω3 ratio of 10.2:1. Argentina has the highest ratio at 18.2:1, followed by Ecuador at 12.6:1 and Chile at 11.3:1. Conversely, Venezuela presents the most favorable ratio, with 7.1:1 (See
Supplementary Materials).
To describe the consumption of total fats, focusing on four key components—SFA, MUFA, PUFA, and TRANS fats—a decision tree was constructed using the CHAID segmentation algorithm (
Figure 2). This resulted in 4 levels of segmentation and 14 terminal groups, as shown below.
The analysis reveals that 29.4% of the population consumes SFA, PUFA, and TRANS fats at levels within the recommended range, but their MUFA intake falls below the recommended levels. This group is followed by individuals who have excessive SFA and TRANS fat intake, with PUFA consumption within the recommended range, but with deficient MUFA intake (17%).
It should be highlighted that MUFA, in the decision tree, is identified as having the largest capacity to explain the total consumption of fats, because of the categories of consumption: low (<13.6%), within (13.6–14.3%) or higher than (≥14.3%) of the recommendations do establish the most important differences in the distribution of the participants according to their consumption of total fats (p < 0.001)
Then, within the first level of segmentation, there is a segment where almost all the participants in the study (91.3%) are characterized by a MUFA consumption below the recommendations. In this segment, the distribution shows a first small group with a low consumption of total fats (5.3%) a second large group with total fat consumption within the recommendations (82.4%) and a third group (12.3%) with a consumption of total fats above the recommendations. In the other two segments, with smaller number of individuals, when the MUFA consumption is within the recommendations, the consumption of total fats is high, whereas when MUFA intake is above the recommended values, total fats are also high.
In the second level of segmentation, when the MUFA intake is below the recommendations, it is shown that saturated fat intake introduces a new segmentation in two more groups. Interestingly, in the segment where MUFA is below recommendations, SAT fat intake derives into another two-group segmentation: the first, when MUFA is below the recommendations and the SAT are excessive, then the TFI is within the recommendations. The second is when MUFA is below the recommended values and SAT are within the recommendations, TFI fall within the recommendations, confirming the interesting findings of MUFA consumption, and the distribution of the different quality of fats.
To assess the impact of sociodemographic factors (country, SES, gender, and age group) on fat intake, a multivariate analysis of variance (MANOVA) was conducted, using Wilks’ Lambda statistic for support.
Table 5 displays the significance of each sociodemographic factor, as measured by the Wilks’ Lambda statistic, in jointly explaining the behavior of the different types of fat under consideration. This allows for a comparison of the average intake patterns of SFA, MUFA, PUFA, and TRANS fats across the categories of each sociodemographic variable (gender, country, age group, and SES) separately.
These results indicate that sociodemographic variables significantly affect the intake of the components of TFI, SFA, MUFA, PUFA, and TRANS.
Analyzing the contribution of energy coming from the components of total fat by country and SEL, it can be observed that the averages of SFA and MUFA in all countries does not differ between upper and middle social classes, decreasing significantly in the lower social class. In Argentina, Brazil, and Venezuela, the energy coming from PUFA in the lower social class is relatively higher or similar than the middle class; in Colombia, Ecuador, and Chile there are not differences by social classes; Peru, in contrast to the other countries, presents a markedly different behavior: the energy contribution by the different components of fats is significantly different by social class, and it is also found in addition that the contribution determined by SFA is significantly lower than that corresponding as MUFA and PUFA, in all social classes. The energy provided by TRANS is similar in all countries except in Costa Rica and Brazil, which are the countries with the highest level of TRANS intake (
Figure 3).
3.4. Food Sources of Fats
Finally, it is important to consider not only the consumption of fats and their components but also the sources of these fats. Therefore, a detailed analysis of food sources is presented below.
Across the whole sample, the primary source of TFI are vegetable oils, contributing between 29.5% in Ecuador and 15.2% in Chile. This is followed by unprocessed meats (beef, poultry, pork, and lamb), which contributed an average of 16.9%, with Brazil and Ecuador showing the highest percentages (20.4% and 20.8%, respectively) and Chile the lowest (11.9%). Cheese is the third major contributor to TFI, with significant variation across countries, ranging from 18.4% in Venezuela to 3.5% in Peru (
Table 6).
As shown in
Table 7, unprocessed meats are the primary source of saturated fats in all countries except Venezuela, where cheese is the leading source. Across the entire sample, cheese ranks as the second major source of saturated fats, with contributions ranging from 6.9% in Peru to 32.9% in Venezuela. Additionally, vegetable oils and processed meats are significant contributors, each accounting for approximately 10% of saturated fat intake on average.
In the entire sample, MUFA primarily come from unprocessed meat, contributing an average of 23.6%. The second main source is vegetable oils, with contributions ranging from 4.1% in Colombia to 21.0% in Peru (
Table 8).
The mean contribution of vegetable oils to PUFA consumption is 38.6%, followed by a 7.8% of not-processed meat and 4.8% of salad dressings (
Table 9).
The primary sources of TRANS are unprocessed meats, which account for 24.8% of trans fat intake for the overall sample. Industrial trans fats are mainly contributed by breads, which provide an average of 12.6%, with a range from 5.8% in Venezuela to 24.6% in Peru. For more details, see
Table 10.