I agree with Ripped to an extent, but I do think there is an individual macro ratio that works best for people. From what I see "ectos" don't fare well on low carb diets - they struggle to consume enough calories and get too thin.
I'm naturally quite lean (smallish build, but reasonably athletic... somewhere between "ecto" and "meso") but I've definitely noticed different weight loss results on different diets. On low fat diets I get skinny. That doesn't happen when I go low carb.
I did a DNA test that looks at teh relationship between diet and your genes, and I was told that I have excellent insulin sensitivity, but that my body stores to mobilise fat stores. That made sense to me, cos' I don't have issues eating carbs, and I while I was low carb I was completly exhausted (beyond the projected "carb flu" period), and I don't think I lost any body fat - just water weight. For me to lose fat I think my fat intake has to be lower.
At the moment I'm eating intuitively and my macros are sitting around 55:30:15 (C:F:P). My energy is good and I'm able to keep pretty active. If I want to drop fat before the summer I'll experiment with getting protein higher and fat lower. If I want to lose bloat I'll drop carbs. Still experimenting!
“I'm glad mushrooms are against the law, because I took them one time, and you know what happened to me? I laid in a field of green grass for four hours going, "My God! I love everything." Yeah, now if that isn't a hazard to our country..."
― Bill Hicks
"Sometimes eating the wrong food with the right attitude is a better choice than eating the right food with the wrong attitude... That’s how powerful the mind and the heart can be in the healing process."
- Chris Kresser