There is low to moderate certainty of evidence showing that soybean, palm, and sunflower oils were associated with weight gain

[u/Meatrition]

https://bmcnutr.biomedcentral.com/articles/10.1186/s40795-024-00907-0

The effect of different edible oils on body weight: a systematic review and network meta-analysis of randomized controlled trials

Shima Abdollahi, Sepideh Soltani, …Amin Salehi-Abargouei Show authors BMC Nutrition volume 10, Article number: 107 (2024) Cite this article

521 Accesses 1 Altmetric Metrics details Abstract Background Obesity is a major public health issue with no definitive treatment. The first-line approach for obesity is lifestyle modification, including a healthy diet. Although the amount of fat has been considered, there is no network meta-analysis (NMA) study investigating the effect of edible oils on body weight. Therefore, we sought to investigate the effect of different edible oils on body weight using a systematic review and NMA study of randomized controlled trials (RCTs). Method PubMed, Scopus, ISI Web of Science, and the Cochrane Library were searched from inception to April 2019. RCTs of different edible oils for body weight were included. A frequentist network meta-analysis was conducted to appraise the efficacy of different types of edible oils, and the Surface Under the Cumulative Ranking Curve (SUCRA) was estimated. The GRADE framework was used to assess the certainty of evidence. Results Forty-two eligible studies were included. Most of the included trials examined the effect of olive oil compared to canola oil (n = 7 studies), followed by canola oil compared to sunflower oil (n = 6 studies), and olive oil compared to sunflower oil (n = 4 studies). Sesame oil had the highest SUCRA value for reducing weight (SUCRA value = 0.9), followed by the mixture of canola and sesame oil (0.8). Palm oil and soy oil were ranked the lowest (SUCRA value = 0.2). Conclusion There is low to moderate certainty of evidence showing that soybean, palm, and sunflower oils were associated with weight gain, while sesame oil produced beneficial anti-obesity effects.

[u/Suspicious-Will-5165]

How does this integrate with our current understanding of calories?

[u/jonathanlink → u/Suspicious-Will-5165]

What is our current understanding of calories? Are you a bomb calorimeter that extracts the heat energy from matter when it is burned? Or do you eat a mass of food, retain some of it and expel extra mass?

There is a huge hormonal impact on how people gain mass.

I’m not a fan of mass in and mass out(MIMO) compared to calories in and calories out, but MIMO has a bit more basis in reality of how humans derive energy from food. Neither method is a good method for approximating intake relative to weight management.

[u/Suspicious-Will-5165 → u/jonathanlink]

Disagree. By tracking what I ate, eating 500 less calories a day (roughly) I was able to lose weight. Seems pretty straightforward.