Special remedies for physical weakness

My friend complains of physical weakness... I feel this is because she does not eat proper meals at the right time. But I would like to suggest some special food, diet, or remedy to help her out. Does anyone know any good remedy to beat physical weakness?

I hear that breakfast is the most important meal of the day, oatmeal and an apple will help start her day (-:

Also, a jelly with royal jelly in it (and some other 'herbal' substances) to rub into her joints. There is some association between the jelly and the word 'equinox' on varying levels. I googled for clues and I think going by the combination of 'leads', including warm clothing, your friend is often just too cold.

You can intake some of these type of substances but there is a caution felt in relation to adverse interactions with other substances she is already taking. So it is external use only into the joints. In particular, a circular motion to the back of the wrist in the centre area next to the wrist bump thing. Also inside of ankle heading towards instep - circular motion in the patch under the inside ankle bump. Plus also in small of back approx. 10cm above tail bone.