Since a prototype of Golden Rice was developed in the year 2000, new lines with higher β-carotene content have been generated. The intensity of the golden colour is a visual indicator of the concentration of β-carotene in the goal is to make sure that people living in rice-based societies get a full complement of provitamin A from their traditional diets. This would apply to countries such as India, Vietnam, Bangladesh. the Philippines, and Indonesia. Golden Rice could still be a valuable complement to children's diets in many countries by contributing to the reduction of clinical and sub-clinical vitamin A deficiency-related diseases.
I’m not sure if anyone else has pointed this out yet. But in the paper looking at different genotypes for the snp rs2287019 that you got all the graphs from is not at all applicable to a ketogenic diet. If you look at the methods section for the paper and the macro-nutrient breakdown, you’ll see that there is no way any of the subjects were in ketosis. There were two “Low Fat” diets. The first was, (20% fat, 15% protein, and 65% carbs). The second “Low Fat” diet consisted of (20% fat, 25% protein, and 55% carbs). The “High Fat” diets consisted of (40% fat, 15% protein and 45% carbs) for the first and (40% fat, 25% protein, and 35% carbs) for the second. All four diets were caloric restriction diets which explains the weight loss. If you want to compare a “Low Fat” diet to a true ketogenic diet it needs to be “High fat, low carb” with carbohydrate composition of around 10% or less.