Supplements are created to supplement items that we normally do not get within our regular diet. However it doesn't mean that we cannot get them through food. Probiotics can be substituted with natural yogurt. Chia Seeds and Fish are high in Omega 3s. Gabriel

Greens is Spirulina and is hard to find an equal substitute but seaweeds are a good option. 

Disclaimer: The Gabriel Method is not intended to treat, cure, or prevent any disease or illness. This information is intended for educational purposes only, not as medical advice. Always check with your doctor before changing your diet, eating, or health program.