Prefer: Simple design, preferably including a black/grey silhouette cartoonish/stick figure-like character (perhaps only upper body) curling vegetables (in distict colors maybe) standing next to or popping up over the "GreenGrams"-text.
No special preferences regarding letters but both Gs should be distinct either in color or size (or both).
some general feedback to designs so far:
1 - The symbol/picture should be located to the side of the text, left or right, not above or below. The whole logo, symbol/picture + text should not be much higher than the height of the text.
2 - After having seem both alternatives, I prefer GreenGrams without the space between the words.
3 - The symbol/picture should not be abstract but more literal and should have the shape of a person, but simple, probably a silhouette or stick figure (but feel free to go for more details if you like and I will comment further).
4 - The symbol/picture should convey a feeling of strength, energy and/or joyfulness
5 - The symbol/picture can allude to plants or something else that touches on vegetarianism, but try to give equal focus on training, exercise, movement and/or strength. Feel free to experiment here, but the picture in my head is a figure weight-lifting, juggling, or otherwise interacting with some fruits or vegetables.