Don’t click on that link the answer for 1 is yes a balanced meal consists of 5 food groups. 2. No unless you count extras as a food group then I guess so.
I do not think it is possible. You can loose weight by not consuming anything (not receiving proper nutrition) and it can be damaging to the body. Also without the proper nutrients is would be hard to maintain fitness because you would lack energy.
Answer: https://www.lucidpress.com/pages/landing/templates/brochures?utm_source=bing&utm_medium=cpc&utm_campaign=Non-Brand%20-%20Use%20Cases_United%20States&utm_term=brochure%20templates&msclkid=1540fcb23a38189a87e99c0dd24fc321
Explanation: Copy and paste the link on your device or type it, its the best result I could find.