Most people do not stop eating at satiation. They eat beyond this, and often very much so. However, eating whenever you want and stopping when you are satiated is still ad libitum.

There's not really a way to test it in humans, to be fair. You can't take old people and say they'll live in your clinic for the rest of your life and will eat only what they give you

>very few humans have an ad libitum diet.

How do you mean this? Globally, inclusive of global poverty and food access?

>Gender dysphoria only exists because of the existence of gender ROLES.

This is not a commonly supported belief. Transgender people often feel dysphoria about the specific physical anatomical structures of their body

Transgender people are required to seek therapy in order to obtain their medications and surgeries. I think that's the biggest variable

Every study on transgender people is going to have a small sample size. This is something that is going to have to be expected. It is very hard to find thousands of transgender people willing to participate in studies.

Happy to help!

Ain't that the truth! I once had to explain to my father that elemental lithium in the water and lithium citrate the anti psychotic medication are not the same thing

Even strength focused athletes seem to be doing just fine on vegan diets. In fact, studies are indicating they're doing equal to or better.

>Powerlifting is a weight-class strength sport where achieving low fat mass (FM) and high fat-free mass (FFM) is desirable to improve performance. Recent studies have evaluated the nutritional considerations of different eating patterns, such as vegan diets (VD), in athlete populations. VD are a challenge for athletes who want to attain body composition changes. The aim of this case study is to report on the body composition changes and subjective feelings of a male professional vegan powerlifter following VD for six weeks. The body mass of the powerlifter decreased from 79.3 to 77.4 kg (2.39%). Along with this, FM decreased from 15.0 to 11.4 kg (24%). Conversely, FFM increased from 64.3 to 66.0 kg (2.64%). Moreover, the powerlifter communicated no subjective feelings of low energy availability during training sessions. The VD might compromise adherence in a nutritional intervention which aims to improve body composition due to the nutritional requirements for fat loss. Therefore, more appropriate health assessments, including blood and psychological tests, are required for professional athletes. This short-term VD intervention was satisfactory for improving body composition and no adverse outcomes were reported.

https://www.mdpi.com/2076-3417/10/23/8675

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>This study examined the effects of whey and pea protein supplementation on physiological adaptations following 8-weeks of high-intensity functional training (HIFT). Fifteen HIFT men (n = 8; 38.6 ± 12.7 y, 1.8 ± 0.1 m, 87.7 ± 15.8 kg) and women (n = 7; 38.9 ± 10.9 y, 1.7 ± 0.10 m, 73.3 ± 10.5 kg) participated in this study. Participants completed an 8-week HIFT program consisting of 4 training sessions per week. Participants consumed 24 g of either whey (n = 8) or pea (n = 7) protein before and after exercise on training days, and in-between meals on non-training days. Before and after training, participants underwent ultrasonography muscle thickness measurement, bioelectrical impedance analysis (BIA), two benchmark WODs (workout of the day), 1-Repetition Maximum (1RM) squat and deadlift testing, and Isometric Mid-thigh Pull (IMTP) performance. Separate analyses of covariance (ANCOVA) were performed on all measures collected at POST. Both groups experienced increased strength for 1RM back squat (p = 0.006) and deadlift (p = 0.008). No training effect (p > 0.05) was found for body composition, muscle thickness, IMTP peak force, IMTP rate of force development, or performance in either WOD. Using PRE values as the covariate, there were no group differences for any measured variable. We conclude that ingestion of whey and pea protein produce similar outcomes in measurements of body composition, muscle thickness, force production, WOD performance and strength following 8-weeks of HIFT. View Full-Text

https://www.mdpi.com/2075-4663/7/1/12

>The vegan diet is becoming more and more popular among athletes, including professional ones. As the research and literature review described above show, it has a beneficial effect on many aspects of health. Also, many world-famous athletes admit its beneficial influence on the achieved results. However, as research shows, there are no significant differences in strength, anaerobicor aerobic strength, or endurance. A greater increase in performance after creatine loading was observed in activities based on the adenosine triphosphate / phosphocreatine system. This is explained by the lower starting concentration of creatine in vegans. Although much work has been done and much research has been done comparing vegan athletes to people who eat animal products, the differences in performance and strength remain an area of interest

https://apcz.umk.pl/JEHS/article/view/JEHS.2020.10.07.023/26142

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At your age you should be more concerned with the risks of heart disease, diabetes, and cancers. All of which are worsened under a high meat diet.

You're in the wrong place, we can all read scientific studies here

Phytoestrogens in soy are actually beneficial to both men and women. They are far less potent than the mammalian estrogens already in your body, and bind to the same receptors. This reduces the incidence of estrogen dependent cancers. It doesn't cause men to grow breasts. This is a weird scaremongering tactic not backed up by any science

Most human bodies need more sleep than that. A few people have genetic abnormalities that allow them to get on with about that or less, but don't assume you're one of those people.