I'm a big fan of natural, healthy products and use them on a daily basis. With my natural personal care home based business it makes sense that I'd use and share healthy products with others. But I'm not one to judge others if they choose not to go natural. Or am I one to "preach" others that what they're using is going to cause cancer or making claims that certain products can cure a particular illness. I've seen too many distributors making ridiculous claims that can potentially get your business and the company in hot legal waters.
In my business, I'll let others know what ingredients can potentially be harmful in excess amounts over time and how I prefer to err on the side of safety but I'll stop short of sounding like it's wrong to use products that are not natural. And if I make any kind of claim it's always based on my personal experience and results.
If you're building a direct selling business, what you say matters to people looking to join your business. Remember you're an independent contractor/sales consultant and you can carve out your uniqueness. Your message does not have to be the same as your company's. People are more likely to be persuaded by your stories and how your products have made a difference rather than facts and figures.
I think it's good to share your knowledge and passion with others but it's not the same thing as being preachy. This is also true when it comes to sponsoring especially if you're new and eager to start growing your business. Sometimes we'll end up saying way too much and scaring people from the business entirely.
No matter what products you're selling or company you're with direct selling will always be a relationship business first. Your ability to connect with people whether that's from meeting in person or from a blog or from social media, people love to do business with people they have a good feeling about. There's nothing like someone coming off as preachy or hyping certain products or opportunity that can turn someone off.