WHOLEWHEAT bread. Agree, it can be like cardboard, same as whole wheat pasta.
However, there are lots of TASTY brown bread alternatives. Hovis, Granary, bread with added wheat germ or added bran, and my dad used to buy a 30% rye bread that was full of flavour. The first two you will find in the supermarket, that latter you will need to find a bakers.
A tasty recipe of mine (you will find cup to gm conversions on line) some ingredients you may have trouble finding in the supermarket but will find on line (probably cheaper) .
For a small (1lb tin) loaf
225 ml water
1 tbsp sugar (I use soft brown as it adds colour, the very dark brown is sulphured and I don't use it)
3/4 teaspoon salt (even on low sodium diet don't skip salt you need to to kill the yeast to stop over rising)
1/4 cup of bran
1/2 cup whole-wheat flout
3 tbsp wheat germ
Mix all these together and leave to stand for at least 10 minutes to soften/break down the whole-wheat flour and bran, if you are using a bread machine. If doing it by hand, let it soak for 20-30 mins.
Then
1 1/2 cups of bread flour (regular flour does not have enough gluten to work)
1 1/2 teaspoons of powdered yeast (adding too much can also cause problems with over rising)
1 1/2 - 2 tbsp oil (I use olive oil, peanut oil adds its own flavour, flax oil is health but has a weird taste; if I use flax oil only mix 1:1 with olive oil)
Drop it in the bread machine and use whole-wheat setting. Remember to check the water balance, is the dough tacky? The recipe above suits my local conditions, but you may need to adjust.