Same here. I raise the chickens on my own. Nobody else in the family has much interest in them (they do love the eggs though)!!! I try to get my parents to buy organic foods and foods labeled "non-GMO". Though they tell me that they don't care about wether it's organic or not, I notice all the time how we are slowly having an increase in the amount organic food we have in the house. I think I'm finally getting through to them! I think hat the most detrimental factor to buying organic food to them is the increase in price compared to other foods. I think it's worth it though when I comes to the health of our family.
It takes time to change minds and some people never change. You are very lucky to have family that is willing to attempt change for their health. Of course, I'm kinda the weirdo in my family, haha! I love the idea of having a garden that will, essentially, be sustainable and will allow us to not have to go grocery shopping. If I were to grow enough, I'd be able to trade produce for meat or other goods. That being said, I'm sure eventually my family will see the difference in the way they feel.
Mom is always complaining about pain or sugars being too high. I think if we could give her a balanced diet, a lot would change for her. I know I feel better when I'm eating loads of veggies and drinking lots of water. I've already lost weight! It's great and I really hope they choose to share this feeling with me.